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Showing posts from July, 2015

command line - How can I fix a workspace switcher freeze? - Ask Ubuntu

a few minutes ago when using workspace switcher, froze tried slide window 1 screen gui interface. result, whole screen frozen , couldn't out of 4-screen layout shown when switching workspaces. i open terminal, didn't know out of this. should if comes again? (there rather high load on graphics card when happened. or maybe rare glitch. keep using workspace switcher need 2 copies of blender, bunch of browser tabs, , few images open right now.) (i had shut down out of this. if i'd had unsaved, have been real pain.)

system installation - Ubuntu live session shut down while trying to install 16.04.1 ubuntu - Ask Ubuntu

hi trying install ubuntu , keeps shutting laptop down following message "hi live session user have open files might want save. to:" , 3 icons appear under it, restart, shutdown , sleep shuts laptop down automatically. trying install ubuntu alongside windows uefi usb stick. in advanced

14.04 - Package manager tells me I installed postgresql-9.6, but when I login I still see version 9.3 - Ask Ubuntu

i’m using ubuntu 14.04. i’m trying upgrade postgres 9.6 server , following directions here . when final step installing package, tells me install it, nothing seems happen: root@remotebox:~# apt-get install postgresql-9.6 reading package lists... done building dependency tree reading state information... done following packages installed: postgresql-9.6 suggested packages: locales-all 0 upgraded, 0 newly installed, 0 remove , 117 not upgraded. when reboot machine (via sudo reboot now ) , login, still see 9.3 server postgres@remotebox:~$ psql psql (9.6.0, server 9.3.11) type "help" help. postgres=# interestingly, run apt-cache , seems installed: postgres@remotebox:~$ apt-cache policy postgresql-9.6 postgresql-9.6: installed: 9.6.0-1.pgdg14.04+1 candidate: 9.6.0-1.pgdg16.04+1 version table: 9.6.0-1.pgdg16.04+1 0 500 http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg/main amd64 packages *** 9.6.0-1.pgdg14.04+1 0 500 http:/

apt - Can't Install VLC In Ubuntu 16.04 [ERROR] - Ask Ubuntu

i using ubuntu 16.04. new user want learn terminal. prefer using terminal instead of software center. tried several times install vlc using both: $ sudo apt-get update $ sudo apt-get install vlc browser-plugin-vlc and $ sudo apt-get update $ sudo apt-get install vlc browser-plugin-vlc but message appears every time: reading package lists... done building dependency tree reading state information... done packages not installed. may mean have requested impossible situation or if using unstable distribution required packages have not yet been created or been moved out of incoming. following information may resolve situation: following packages have unmet dependencies: vlc : depends: vlc-nox (= 3.0.0~~git20160525+r64784+62~ubuntu16.10.1) 2.2.4-4 installed e: unable correct problems, have held broken packages. so, @ last against went software center. however, install vlc had log in @ ubuntu one. tried log in, can't. said invalid email/password . so,

Firefox Widevine plugin crashes immediately after upgrade to Ubuntu 16.10 - Ask Ubuntu

after upgraded ubuntu 16.10 experiencing immediate crash when trying watch video uses widevine plugin. i using firefox 49 widevine works fine in chrome i logged guest mode , tried there, same problem occurs one of crash reports sent firefox: https://crash-stats.mozilla.com/report/index/088a0c5c-5509-423b-8347-6ed842161022#tab-details on second pc firefox 49.0.2 , ubuntu 16.04 worked fine, after upgrading 16.10 experience same error hope can help seems problem in firefox: in firefox 50.0beta2 plugin doesn't crash more.

boot - Error booting Ubuntu or every distro I try - Ask Ubuntu

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the linux distro i've been able use zorin os, iso used had other issues. other that, i've tried ubuntu , linux mint , every time boot live usb (install, or try without install) stuck here... i have adapted the answer question ubuntu installer. may rid of first error messages in screenshot, might in turn remove later errors , allow boot. boot ubuntu installer. when grub boot menu, highlight "try ubuntu before installing" arrow keys , press "e" edit boot entry. go line begins linux , add iommu=soft between quiet , splash , resulting in quiet iommu=soft splash press ctrl-x or f10 boot. please note need every time try boot installer. if manage ubuntu installed can permanently fix following instructions in linked answer.

Just installed Ubuntu on 2nd HDD and no longer boot Windows 10 - Ask Ubuntu

my laptop has 2 storage drives; ssd , hdd. first installed window 10 on ssd (/dev/sda). after installed ubuntu 16.04 on hdd (/dev/sdb), while making sure bootloader installed on /dev/sdb. thought switch between os on startup entering boot menu , selecting drive want boot from. however, after installation of ubuntu on hdd, cannot boot windows 10 anymore. when press enter on option ssd, laptop attempts boot it, returns boot selection menu. i'm new stuff, hope can help. thanks.

16.04 - How do I install the latest OpenOffice? - Ask Ubuntu

as new ubuntu user, have installed few apps through terminal. i have tried follow several, albeit outdated, threads explain how install openoffice, cannot work. helpful if provide me necessary commands work. we use libreoffice. openoffice license suited. openoffice has license restrictive ubuntu of use (see below). besides that: ubuntu not using latest version stable version @ release of os. security wise better stick versions ubuntu supplies. security related fixes provided when found , fixed. nevertheless ... you need remove libreoffice 1st , since there no personal archive openoffice need download website (pick 64-bit deb). software provided deb can download , use our software center install doubleclicking finished download; or can pick tar.gz download , have installation instructions inside installer on how install (see readme regarding installation inside package). but why go through trouble? since there licensing issue opt libreoffice. this isn

iptables - error installing iproute2 - Ask Ubuntu

i trying install iproute2 on ubuntu 16.04.1 , when tried ./configure getting following error. tc schedulers atm no ipt using xtables ipset yes iptables modules directory: /lib/xtables libc has setns: yes selinux support: no elf support: no libmnl support: no berkeley db: no docs: latex: no warning: no docs can built latex files sgml2html: no warning: no html docs can built sgml unless there's reason build source, should take easy way: apt-cache search iproute2 and then, sudo apt-get install iproute2 iproute2-doc or, read readme* files came source, , add parameters ./configure .

server - Juju Single still has a single master even HA is enabled - Ask Ubuntu

i'm install juju on ubuntu 14.04 version 1.25 notice have 2 server first 1 master second bootstrap node. if run command juju ensure-availability -n 3 juju add 2 more machine bootstrap. notice have 3 bootstrap node document say. but if master server fail ? because juju still have single point of failure master server. there implement juju multiple master increase availability ? though, haven't used ha on 1.2x, juju 2.0 has lot of improvements. juju 2.0 ha , backup features seems pretty solid. reference: - https://jujucharms.com/docs/2.0/controllers-ha - https://jujucharms.com/docs/2.0/controllers-backup

system installation - Preseed Ubiquity success command executed incompletely - Ask Ubuntu

i'm in process of building automated installation of ubuntu 16.04 desktop. custom command in preseed file i'm using this # custom commands ubiquity ubiquity/success_command \ string mkdir /target/install/; \ cp -r /cdrom/scripts/* /target/install/; \ chroot /target chmod +x /install/postinstall.sh; \ chroot /target bash /install/postinstall.sh; and postinstall.sh has content # install chrome cd /install wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb dpkg -i google-chrome-stable_current_amd64.deb # delete chrome install rm google-chrome-stable_current_amd64.deb but chrome doesn't installed. script copied /install , marked executable hopefully has idea error located. the chrome installer asking questions, maybe add yes install command? yes | dpkg -i google-chrome-stable_current_amd64.deb or apt-get -y install google-chrome-stable_current_amd64.deb

video - How to insert embedded YouTube player into LibreOffice Impress? - Ask Ubuntu

in powerpoint 1 able insert youtube embedded player providing program link video can played within actual slide rather 1 having open in browser. but haven't been able find such functionality in libreoffice impress. there such feature? running ubuntu gnome 16.10 gnome 3.22. first have download video in order embed in slide in libreoffice impress. recommend downloading mp4 format video, because youtube provides big selection of video resolutions mp4 format, give control of size of finished presentation. install gstreamer backend libreoffice , youtube-dl. sudo apt-get install libreoffice-avmedia-backend-gstreamer youtube-dl download video in youtube using youtube-dl. video format should mp4 or other video format supported libreoffice impress. resolution of downloaded video controls size of video on slide. if want see small video box in slide, select low resolution 426x240 in youtube-dl options. selecting low resolution produce presentation of manageable size. in

browser - Chromedriver is opened instead of "normal" Chrome - Ask Ubuntu

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when i: click on ubuntu start button > type "chrome" > select chrome application or click on url on slack instead of opening chrome would, opens "chromedriver" use job , throws following error: translation: error when loading extension from: . manifest file missing or unreadable and opens "chromedriver". there not bookmarks , "data:," in url (usually when chromedriver starts appears that) i attach 2 configs have in ubuntu default browsers. can see in bash window, have 2 "chromes" (i tried using both problem remains) , in "details" page instead of reading "google chrome", can see there page referenced "dashboard something" i google crazy person no luck other solution. lot in advance

16.04 LTS/Gnome 3 - Launcher will not hide and other issues - Ask Ubuntu

i find launcher in ubuntu 16.04 (server) gnome 3.18.5 doesn't hide , cursor jumpy , unstable. problem started few weeks ago , don't recall trigger was. installing gnome 3.18.5 , upgrading 16.04 latest didn't help. here's config: 16.04, kernel 4.4.0-45 display card gallium 0.4 on llvmpipe (lvm3.8 256 bits) dell t320 server, 64-bit, 16gb ram, 12 cpus

apt - Can't install linux-headers for Ubuntu 16.04 - Ask Ubuntu

i'm trying install packages apt-get , every time try install get: acanada@ubuntu:~$ sudo apt-get install python3-pip reading package lists... done building dependency tree reading state information... done might want run 'apt-get -f install' correct these: following packages have unmet dependencies: linux-headers-4.4.0-45-generic : depends: linux-headers-4.4.0-45 not going installed e: unmet dependencies. try 'apt-get -f install' no packages (or specify solution). so, apt-get -f install command , get: acanada@ubuntu:~$ sudo apt-get -f install reading package lists... done building dependency tree reading state information... done correcting dependencies... done following packages automatically installed , no longer required: gnome-video-effects guile-2.0-libs libgc1c2 libwhoopsie-preferences0 linux-headers-4.4.0-31 linux-headers-4.4.0-31-generic linux-image-4.4.0-31-generic linux-image-extra-4.4.0-31-generic whoopsie-preferences use

system installation - LibreOffice Writer default template (2) - Ask Ubuntu

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i want thank responded request. however, instructions provided did not work. in fact, directions -- printed follow explicitly -- did not correspond version of libreoffice writer in several places (screens or commands in instructions not there or in same place in version). i have made , saved desired default file. save ? there must current default file, don't know is. need exact location, , i'll replace current desired default file. have found, on time, replacing current default file new 1 trick, need exact, explicit location. works mac, windows, , hope ubuntu 16.04. again, have both ubuntu 16.04 lts , libreofficer writer version: 5.1.4.2 installed. on further note, found , downloaded newer version: libreoffice writer 5.2.2.2. how 1 go installing it? there 15-20 folders. there instructions? in libreoffice menu-bar click on tools , choose options . in options-window can see default path templates-directory. if click edit -button can add path off choice , set def

16.04 - Ubuntu Upgraded from 14.04LTS to 16.04LTS, how do I upgrade libstdc++.so.6 properly? - Ask Ubuntu

upon upgrading, system booted terminal mode, , nothing worked including apt failed with: apt: relocation error: /usr/lib/x86_64-linux-gnu/libapt-pkg.so.5.0: symbol _znkst7__cxx1112basic_stringicst11char_traitsicesaicee7compareerks4_, version glibcxx_3.4.21 not defined in file libstdc++.so.6 link time reference i chased down , found new libstdc++.so.6.0.22 apparently didn't link right things, libstdc++.so.6.0.21 does. found copy of libstdc++.so.6.0.21 , pointed libstdc++.so.6 symlink it, , worked again. system boots gui, programs run, etc. however, updates in software updater failing (including mysql), , when fail, has pointed libstdc++.so.6 0.22. when happens, several programs in still running xwindow session refuse run, firefox , aisleriot solitare (before i've figured out there's problem). moment point symlink 0.21, works again. i running on stable updates of everything, including libstdc++, seems missing something, or upgraded out of order , broke process in

virtualbox - vboxdrv: Fatal error in Kernel 4.8 - Ask Ubuntu

why modprobe vboxdrv not resolved yet kernel 4.8? i have 2 kernels 4.4 , 4.8 , vboxdrv working fine on 4.4 whenever try launch vm fatal error modprobe vboxdrv . should wait virtualbox update can fixed somehow newest kernel? edit: uname-a output linux mohsen-svp1322f4e 4.8.1-040801-generic #201610071031 smp fri oct 7 14:34:10 utc 2016 x86_64 x86_64 x86_64 gnu/linux edit2: updated kernel 4.8.4 , removed virtualbox dkms reinstall again. still error found. vboxdrv still not found. edit3: tried reinstall virtualbox dkms no luck. removed , reinstalled virtualbox per here , working fine now. with oracle's virtual box 5.1 dkms (dynamic kernel management system) no longer used download source code , compile every kernel upgrade. go install latest virtualbox 5.1 ubuntu 16.04 instructions on: removing old version adding virtualbox sources.list (informs ubuntu find it) adding virtualbox signature key library installing current version of virtualbox also

networking - Slow connection with Broadcom BCM43142 on Ubuntu 16.04 - Ask Ubuntu

i have switched ubuntu 16.04 , i'm having problems wireless connection. i'm using broadcom bcm43142 wireless card , using broadcom 802.11 linux sta driver. the wireless connection shows @ low signal. works @ adequate speed, of time connection slow (much slower on windows in have dual boot partition). i have tried uninstalling/reinstalling driver. have tried disabling ipv6 , tried avahi daemon fix no avail. i've run following wireless script , output http://pastebin.com/bu5zzjcy you can try install newer driver running sudo apt purge bcmwl-kernel-source sudo apt install broadcom-sta-dkms it helps improve speed on broadcom chipsets.

boot - Install from installed OS - Ask Ubuntu

i have usb have installed ubuntu on, not usb installer package. still able install ubuntu on other systems using drive however. problem 'install ubuntu' icon disappears once it's installed somewhere... is there easy way back? installer? it depends on definition of "easy": is there 1 second solution of pointing right executable , presto, it's back? sorry, no can download iso again onto existing partition , boot that? sorry, no can you: download iso again burn usb boot usb in "try ubuntu" mode repartition first usb have enough space contain second usb boot primary usb , dd second usb onto partition of first usb add second partition on primary usb grub menu well, yes! but then, might stop @ #3.2. , use 2 usbs: 1 install , 1 use. and that's easiest solution! ;-)

calendar - How to turn off Thunderbird message "Thunderbird now has calendaring functionality..." - Ask Ubuntu

since installing ubuntu mate 16.10, i've been getting following message @ bottom of thunderbird's window: "thunderbird contains calendaring functionality integrating lightning extension." there 3 buttons available: learn more, disable, keep. well, don't want disable calendar, whichever button push, message keeps coming back. idea how turn message off without disabling calendar? thanks! go edit --> preferences --> config editor , set mail.biff.show_balloon zero. 1 disable popups.

Installing Broadcom Wireless Drivers - Ask Ubuntu

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i'm having serious problems installing broadcom drivers ubuntu. worked on previous version, now, impossible. what steps install broadcom wireless drivers bcm43xx card? i'm user no advance knowledge in linux, need clear explanations on how make, compile, etc. lspci -vnn | grep network showed: broadcom corporation bcm4322 802.11a/b/g/n wireless lan controller [14e4:432b] iwconfig showed: lo no wireless extensions. eth0 no wireless extensions. note: answer below updated every time new information added , confirmed working. 0. introduction , background this answer based on extensive research done various ubuntu users worked in issues related broadcom. special chili555 helped in ubuntu forums , on site many questions related wireless devices , others have contributed through e-mail, chats, irc , more in testing various drivers several of popular broadcom wireless cards (huge chili555 really. guy knows stuff). in total wanted offer a

14.04 - NVIDIA Drivers are not working anymore - only 1 screen is detected, max resolution 800x600 - Ask Ubuntu

i'm stuck @ problem can't solve myself. recently, obs (open broadcast software) stopped working, i've decided test little bit around fixed. i've done update , upgrade , dist-upgrade , -f install , did several updates, including linux header updates seem make problems. after reboot i've had 1 single desktop use, , max resolution 800x600. also, nvidia x server-window hasn't more settings available before (only 2 options now, both useless). i've purged nvidia-packets reinstalled nvidia-304 , nvidia-352 (i wasn't sure 1 need, since have gtx 780 - or 740, not sure right now). both didn't worked. so basically, in short, here's problem: having gtx 7xx graphic card using ubuntu 14.04 recently updated linux headers trough apt-get dist-upgrade now having bugs graphic engine. how can fix this, , how can appropriate drivers working? thank much. first remove installed nvidia software. select ubuntu menu entry , press e key

Is ext4 still prone to data loss in Ubuntu 16.04 LTS? - Ask Ubuntu

when ext4 relatively new, said can lose data during power failure. unfortunately, cannot shut down computer properly, , have cause power failure deliberately. there an article says, should mount ext4 file system nodelalloc option prevent such data loss. however, ubuntu 16.04 lts not use option default. has ext4 implementation been modified such such data loss cannot occur anymore, or default configuration of ubuntu 16.04 lts unsafe? every file system prone data loss, answer "yes". it everyone's personal choice pick file system s/he feels meets her/his requirements. default ext4 ubuntu not chosen because free data loss (or "the best" in other way), because adequately meets requirements of large group of users. ext4 fine large group. users additional requirements have option of changing default - , discuss advantages of choice others sort of thing ;-).

unable to mount dongle/modem iball airways 21.0MP-58 - Ask Ubuntu

error mounting /dev/sr1 @ /media/arbind/iball airway: command-line ` mount -t "iso9660" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500" "/dev/sr1" "/media/arbind/iball airway" mount: /dev/sr1 write-protected, mounting read-only mount: /dev/sr1 mounted or /media/arbind/iball airway busy it's mounted. sudo umount "/media/arbind/iball airway" first. check device see if has hardware write-disable switch. you can see how mounted mount | grep /dev/sr1 . if, say, it's "dongle/modem iball airways 21.0mp-58", wonder why trying mount disk.

Invalid filename extension in apt sources.list - Ask Ubuntu

n: ignoring file 'yandex-browser.list.save.1' in directory '/etc/apt/sources.list.d/' has invalid filename extension n: ignoring file 'yandex-browser.list.save.2' in directory '/etc/apt/sources.list.d/' has invalid filename extension e: type 'andex.ru/yandex-browser/deb' not known on line 1 in source list /etc/apt/sources.list.d/yandex-browser.list e: list of sources not read. how can fix this? run in terminal sudo rm /etc/apt/sources.list.d/yandex-browser* and problem should fixed. some script or corrupted sources.list files while installing yandex browser.

apt - How to insall mysql-proxy in ubuntu 16.04? - Ask Ubuntu

i have tried installing using sudo apt-get below got error majid@k53sc:~$ sudo apt-get install mysql-proxy reading package lists... done building dependency tree reading state information... done e: unable locate package mysql-proxy tried download linux-genereic ( https://downloads.mysql.com/archives/proxy/ ) , extract , run; mysql client can't connect server via proxy: terminal 1: $ mysql-proxy --proxy-address=127.0.0.1:4040 --proxy-backend-addresses=localhost:3306 --proxy-lua-script=/home/majid/documents/first_example.lua --plugins=proxy 2016-11-01 20:34:20: (critical) plugin proxy 0.8.5 started got normal query: select @@version_comment limit 1 terminal 2: majid@k53sc:~$ mysql -h 127.0.0.1 -p4040 -u root -ppassword mysql: [warning] using password on command line interface can insecure. welcome mysql monitor. commands end ; or \g. and stays there; nothing happens. so correct way install , use mysql-proxy in ubuntu 16.04? regards edit: as per davi

11.10 - How do I get the Broadcom BCM4313 wireless working on an Asus 1015PX? - Ask Ubuntu

i installed ubuntu 11.10 on asus 1015px certified canonical. wifi not working. read bcm4313 troubles , tried https://help.ubuntu.com/community/wifidocs/driver/bcm43xx http://www.broadcom.com/support/802.11/linux_sta.php i tried in thread broadcom bcm4313 working, terribly slow nothing worked me. and others nothing helped. can give detailed description point-by-point did thing working on asus 1015px? the bcm4313 broadcom wireless card compatible open source brcm80211 driver directly included in standard kernel or proprietary broadcom-wl driver can installed additional drivers in ubuntu. @ point of time, should have 1 of drivers installed , trying use simultaneously result in drivers conflicting each other. it should noted broadcom-wl has been causing more problems resolving them , should avoid them altogether if possible. to answer problem, have used steps provided in this forums thread . method more workaround problem rather permanent fix issue. first of

networking - Cannot connect to internet - Ask Ubuntu

my computer running windows 10 when internet stopped working - connect our network, no internet access. had play around decided considering doing switch on pc ubuntu , assumed windows update must of altered , did clean install of ubuntu 16.04lts. there still no internet access ifconfig eno1 link encap:ethernet hwaddr ac:9e:17:b8:2d:48 inet6 addr: fe80::ae9e:17ff:feb8:2d48/64 scope:link broadcast running multicast mtu:1500 metric:1 rx packets:3700 errors:0 dropped:0 overruns:0 frame:0 tx packets:102 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 rx bytes:262288 (262.2 kb) tx bytes:23450 (23.4 kb) interrupt:20 memory:df200000-df220000 lo link encap:local loopback inet addr:127.0.0.1 mask:255.0.0.0 inet6 addr: ::1/128 scope:host loopback running mtu:65536 metric:1 rx packets:12004 errors:0 dropped:0 overruns:0 frame:0 tx packets:12004 errors

touchpad - how to Spread the windows in ubuntu 16.04? - Ask Ubuntu

how can scale (spread) windows in ubuntu 16.04 lts. on same pc when windows when scroll away 3 fingers touch windows spread. suggest gesture client. pressing super+w zoom out display windows. there may select window. additionally pressing ctrl+alt , number on numpad allows reposition windows. you can activate these commands touchpad gestures using easystroke . install easystroke in 16.04 , open terminal , type: sudo apt-get install easystroke or, search in ubuntu store. there may configure several gestures on touchpad such 1 press super+w . knowledge though, easystroke supports single-touch gestures , requires button held activate it.

hard drive - How to best backup a server HDD to a secondary HDD - Ask Ubuntu

i have server configuration: os: ubuntu server 16.04 hdd1: 1tb <system> hdd2: 1tb <empty> i backup on hdd1 onto hdd2. ideally mirror image of first drive , things either manually or on schedule. backup purposes not raid. i'm considering using rsync backup / directory. i'm unsure if that's idea. what optimal way of backing drive this? rsync job. has advantage of being able boot backup drive , restore files simple copy. conventional tools tar , dump have advantage of being able compress data can fit more incremental backups , go further in time restore modified or deleted file.

boot - ata1, 2, 3 softreset failed - Ask Ubuntu

a couple of weeks ago, installed ubuntu 16.04 desktop (64-bit). had been working flawlessly. after doing couple of software updates, 3 errors on restart/bootup: [2.484025] ata1: softreset failed (device not ready) [2.488023] ata3: softreset failed (device not ready) [2.488106] ata2: softreset failed (device not ready) i have not been able past errors. however, able boot in "recovery mode". i searched ubuntu forum similar problem have not been able find solution. point me in right direction?

panel applets - Can't install app from usc nor using teminal !! 16.04 LTS - Ask Ubuntu

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i'm newbie here , i've got error installing applets ubuntu software center shows app's icon in launcher doesn't install! internet connection active can't update 'other resources' because gives me internet connection error after taking long time loading. screenshots: you can remove cdrom undoing selection did before in software & updates > other software. also remove offending file: sudo rm /etc/apt/apt.conf.d/20auto-upgrades.ucf-dist now should able download , install updates , other software.

log - Ping different IP addresses and save only ping statistics - Ask Ubuntu

i want ping ip addresses , save statistics , ip address - 0% packet loss $ ping -s 100 -c 5 -i 1 8.8.8.8 ping 8.8.8.8 (8.8.8.8) 100(128) bytes of data. 72 bytes 8.8.8.8: icmp_seq=1 ttl=48 (truncated) 72 bytes 8.8.8.8: icmp_seq=2 ttl=48 (truncated) 72 bytes 8.8.8.8: icmp_seq=3 ttl=48 (truncated) 72 bytes 8.8.8.8: icmp_seq=4 ttl=48 (truncated) 72 bytes 8.8.8.8: icmp_seq=5 ttl=48 (truncated) --- 8.8.8.8 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4006ms rtt min/avg/max/mdev = 50.869/51.435/51.602/0.348 ms can write log ip address - 0% packet loss? you run ping command, , pipe grep 'packet loss'|cut -f 6 should give "0%" part. i have not tested , i'm not going further details since not strictly ubuntu related. however, commands have provided should on right track. always remember man <command> if doesn't work - give explanation on how use properly. you may want check out smokeping . package monitors la

ppa - How to provide more up-to-date versions of existing Ubuntu software for a lower version? - Ask Ubuntu

concretely, i'd provide version of add-apt-repository --enable-sources option ubuntu 12.04 used travis-ci.org ci service, i'm looking generic solution. figured it'd easy provide them through ppa, don't find guide how repackage software debian software. afaik, first relevant command in case source root retrieved apt-get source bzr builddeb -- -s -us -uc fails due bzr: error: not branch: "/afs/richtercloud.de/sources/software-properties-0.96.24.7/". software-properties . in case dealing debian source package not bazaar source repository , did idea? the work-flow quite different. can't resume every thing here, vast topic. here points show quick 1 of many ways out there. check package $ apt-add-repository /usr/bin/apt-add-repository $ dpkg -s /usr/bin/apt-add-repository software-properties-common: /usr/bin/apt-add-repository download source apt-get source software-properties-common install build dependencies sudo apt-get bui

Backintime backup utility on Kubuntu 16.04 - Ask Ubuntu

i have encrypted home directory; directory want backup on windows partition , target ext3 partition. backup should encrypted , password saved in kwallet. i run "backintime" on logout or shutdown, if booting windows directory , doing mess can still restore files linux-partition (kubuntu-16.04). how can achieve this?

Gnome keyring unnamed personal certificates issued by no one - Ask Ubuntu

using seahorse, under certificates > default trust , see have 9 personal certificates called (null) , issued "no name", give absolutely no information when @ properties. so: where come from? what (if any) purpose serve?

partitioning - cryptsetup luksFormat error: access denied or device doesnt exist - Ask Ubuntu

i trying initialize luks encryption on usb stick partition. i'm on ubuntu. partition size 43.7gb i have double checked fdisk -l partition i'm trying access exists: /dev/sdb3 ; tried use flag -y instead; , sudo . it gives me error when run cryptsetup --verify-passphrase luksformat /dev/sdb3 : device /dev/sdb3 doesn't exist or access denied.` i can't figure out i'm missing here df -h output: disk /dev/sdb: 58.3 gib, 62579015680 bytes, 122224640 sectors units: sectors of 1 * 512 = 512 bytes sector size (logical/physical): 512 bytes / 512 bytes i/o size (minimum/optimal): 512 bytes / 512 bytes disklabel type: dos disk identifier: 0x77e6cfe3 fdisk -l /dev/sdb output: disk /dev/sdb: 58.3 gib, 62579015680 bytes, 122224640 sectors units: sectors of 1 * 512 = 512 bytes sector size (logical/physical): 512 bytes / 512 bytes i/o size (minimum/optimal): 512 bytes / 512 bytes disklabel type: dos disk identifier: 0x77e6cfe3

16.04 - Gnome3 custom shortcuts don't work - Ask Ubuntu

i have clean install of 16.04 ubuntu gnome packages installed. can use shortcuts tab of keyboard setting set keybindings built-in gnome functions (such "launch browser") custom shortcuts don't work. even when try allocate simple "gnome-terminal" or "/usr/bin/gnome-terminal" command shortcut not activate. i'm using simple shortcuts win + 1 test, can't anyway because shortcuts work built-in functions. to clear attempting in: settings -> keyboard -> shortcut tab -> custom shortcuts (bottom left). i'm going out of mind trying simple! @ 1 point thought of setting custom shortcuts in ccsm, gnome3 not use compiz. if has suggestions (or workarounds) appreciate it. update 09nov2016 looks bug gnome classic (i guess classic people use mate? anyway i've switched use xbindkeys).

networking - Help understanding iptables command - Ask Ubuntu

what every part of command mean? sudo iptables -t nat -a postrouting -o eth0 -j masquerade from manual pages of iptables(8) : iptables : iptables , ip6tables used set up, maintain, , inspect tables of ipv4 , ipv6 packet filter rules in linux kernel. several different tables may defined. each table contains number of built-in chains , may contain user-defined chains. -t nat : iptables , ip6tables used set up, maintain, , inspect tables of ipv4 , ipv6 packet filter rules in linux kernel. several different tables may defined. each table contains number of built-in chains , may contain user-defined chains. this table consulted when packet creates new connection encountered. consists of 3 built-ins: prerouting (for altering packets come in), output (for altering locally-generated packets before routing), , postrouting (for altering packets go out). ipv6 nat support available since kernel 3.7. -a postrouting : append 1

boot - Stupid usb linux question - Ask Ubuntu

ok, know stupid question, don't know , can't find answer. have windows machine. want run copy of ubuntu linux off usb drive persistence. i have used pendrivelinux usb installer put usb distribution onto usb drive. at bootup asks whether want "try linux" or "install linux" my question if choose install linux, installed usb drive using (desired), or overwrite windows on hard drive (undesired)? if choose install ubuntu, install ubuntu in hard drive. if choose try ubuntu, not overwrite windows installation. try use unetbootin purposes, give option create persistence file save modifications in live media, specify size in mb says "space used preserve files across reboots (ubuntu only)".

graphics - Error After Installing Oibaf's Drivers on Yakkety Yak - Ask Ubuntu

this question has answer here: my computer boots black screen, options have fix it? 32 answers 2 hours ago installed oibaf's graphics drivers , restarted, , point whenever boot ubuntu stuck on /dev/sda2: recovering journal /dev/sda2: clean, 234417/30295728 files, 5171544/120946688 blocks and gets stuck on blinking _ . i guess of tell me uninstall drivers don't want because of gallium nine's native dx9 support, solution or alternative appreciated. just in case, here specs: 4gb of ddr3 ram intel core i5 4200u amd radeon hd 8670m 1gb of vram screen res: 1366x768 intel hd graphics 4400 ubuntu 16.10 yakkety yak it's video driver problem. in cinnamon, force system use cinnamon safe mode. in xfce , vlc or other video players, won't start. have wait patch.

nvidia - System Requirements for KDE KWin on 4K monitors - Ask Ubuntu

i'm interested in buying 24'' 4k monitor , apply 2.0 scaling crispier, , easier on eyes, desktop experience using uhd monitor display hd desktop. i won't gaming (it's workstation @ work). i'm buying new graphics-card (nvidia geforce gtx750 ti 2gb) can buy 120$ in order have displayport output, required have 60hz @ 4k. however, have no idea how demanding kde @ 4k scaled match 1920x1080 is, kwin uses 3d scenegraph. i'd avoid buying graphics card later find out should have bought stronger one. does have experience share? thanks lot

networking - How can I add an IP address to iptable or firewall using JAVA? - Ask Ubuntu

i have built monitoring system : shadow-net in java. have web interface shows black listed ips. now required provide option on web ui allow user block of ip listed. there way block specified ip address i.e. adding iptable or configuring firewall, in java? blocking ip iptables enough. getting app system might have security implications. if use system.exec() command have ran root. here example blocking ip 1.2.3.4 in iptables. /sbin/iptables -i input -s 1.2.3.4 -j drop

ssh - x11vnc Becomes Unresponsive After a While - Ask Ubuntu

lubuntu 16.04 lts running headless on banana pro, starting lemaker's official image . after imaging 32gb sd card, expanded system partition ~3.7gb fill card, booted first time , followed pseudocode: do # boot , ssh in ssh bananapi@<ip_address> bananapi # initial setup on ssh sudo su bananapi apt-get update apt-get dist-upgrade -y # let wants apt-get autoremove -y nano /etc/sudoers # add bananapi in, copying root nano /etc/update-manager/release-upgrades # set desired option here do-release-upgrade # let wants, including reboot while(do-release-upgrade did something) apt-get install x11vnc -y x11vnc -storepasswd ******** /etc/x11vnc.pass nano /etc/rc.local /etc/rc.local includes line: /usr/bin/x11vnc -noxrecord -shared -xkb -forever -auth /var/run/lightdm/root/:0 -display :0 -rfbauth /etc/x11vnc.pass -rfbport 5900 -bg -o /var/log/x11vnc.log when finishes rebooting,

Scared? dual-boot my MBP, but I lost Mac OSX? - Ask Ubuntu

it seems made blunder, it's unclear. originally, had standard mbp 2012, , decided dual-booting computer (i.e. mac osx , ubuntu). download ubuntu 16.10 (iso) and, external drive, installed ubuntu 16.10 application unetbootin. actually, i'm bit scared, because i've installed ubuntu 16.10, have no longer access mac osx. when restart mac, don't have choice between mac osx , ubuntu. come each time ubuntu. somehow first choice default? able give bit more explanation? right scared or not?

software installation - Problem install pgAdmin 4 v1.1 in desktop mode on Ubuntu 16.04 - Ask Ubuntu

following previous post how install pgadmin 4 in desktop mode on ubuntu 16.04 , had error (can't find python.h). mentioned changing python3, how go doing this? thanks in advance. pip install pgadmin4-1.1-py2-none-any.whl processing ./pgadmin4-1.1-py2-none-any.whl requirement satisfied: flask-principal==0.4.0 in ./lib/python2.7/site-packages (from pgadmin4==1.1) requirement satisfied: blinker==1.3 in ./lib/python2.7/site-packages (from pgadmin4==1.1) requirement satisfied: unittest2==1.1.0 in ./lib/python2.7/site-packages (from pgadmin4==1.1) requirement satisfied: testscenarios==0.5.0 in ./lib/python2.7/site-packages (from pgadmin4==1.1) requirement satisfied: extras==0.0.3 in ./lib/python2.7/site-packages (from pgadmin4==1.1) requirement satisfied: jinja2==2.7.3 in ./lib/python2.7/site-packages (from pgadmin4==1.1) requirement satisfied: importlib==1.0.3 in ./lib/python2.7/site-packages (from pgadmin4==1.1) requirement satisfied: traceback2==1.4.0 in ./lib/python2.7/site

printing - Printer service not found on port 515 - Ask Ubuntu

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for services list on ubuntu, printer service not found on port 515. nmap -st -o localhost port state service 23/tcp open telnet 139/tcp open netbios-ssn 445/tcp open microsoft-ds 631/tcp open ipp 9050/tcp open tor-socks device type: general purpose running: linux 3.x os cpe: cpe:/o:linux:linux_kernel:3 os details: linux 3.12 - 3.19, linux 3.8 - 3.19 there no printer service on port 515. how add printer service on port 515? nmap -v -p 515 127.0.0.1 starting nmap 7.01 ( https://nmap.org ) @ 2016-11-19 13:03 irst initiating syn stealth scan @ 13:03 scanning localhost (127.0.0.1) [1 port] completed syn stealth scan @ 13:03, 0.21s elapsed (1 total ports) nmap scan report localhost (127.0.0.1) host (0.000065s latency). port state service 515/tcp closed printer port 515/tcp line printer spooler port. run print spooler listen port 515, but.... the modern, ubuntu way use cups (common unix printing system), listens internet printing protocol on p

cpu - Pinning a virtual machine to a particular physical core in Openstack - Ask Ubuntu

i have openstack autopilot deployment on 3 physical machine , intend evaluate interference between collocates vms on single physical core. purpose i'm looking detailed & ubuntu-specific instructions on how pin vm specific pcpu have multiple vms on same core & go on experiment. advice make big difference on how time i'm gonna spent in step. thanks. you'll want either create new flavour, or edit 1 of existing flavours (using admin credentials available in autopilot dashboard) - , follow "cpu pinning section" of openstack admin docs here: http://docs.openstack.org/admin-guide/compute-flavors.html#cpu-pinning-policy

Colors in terminator - Ask Ubuntu

i'm using terminator xubuntu 16.04. unfortunately terminal text not highlight anything, when used terminator on linux mint username@computer: highlighted in different colors , weight. plain text. this question has been answered here how colored bash? this has nothing terminator the easy way have colour "back" shell uncomment 1 line in .bashrc open ~/.bashrc in text editor , uncomment line: \#force_color_prompt=yes to be: force_color_prompt=yes save execute source ~/.bashrc hope help

'Invisible' boot loader - Ask Ubuntu

symptom windows \ ubuntu 16.10 dual boot install not show grub menu (black screen). when 'invisible' boot loader waiting input, pushing arrow key down 4 times boot windows partition, doing nothing boots 16.10. suspect grub installed. update: monitor reports 'frequency out of range' during boot loader wait user input goal boot loader presents menu options boot windows or ubuntu questions what diagnostics can performed better understand current state , advance goal? boot ubuntu open terminal unity dashboard type cd /etc/default edit file grub either sudo pico grub or gksu gedit grub change line: grub_cmdline_linux_default="quiet splash" grub_cmdline_linux_default="quiet splash nomodeset" save edited file, , quit whichever editor chose type sudo update-grub reboot computer check make sure have latest/correct video driver installed

drivers - Ubuntu 16.04 wifi not connecting - Ask Ubuntu

this question has answer here: intel wireless not working @ all 1 answer ubuntu 16.04 wifi not connecting wifi not connecting on ubuntu 16.04. when go network settings turn wifi toggle on toggles off. i've tried $ sudo service network-manager restart as multiple other suggestions nothing seems work ... this got when typed $ sudo lshw -c network into terminal... description: ethernet interface product: rtl8101/2/6e pci express fast/gigabit ethernet controller vendor: realtek semiconductor co., ltd. physical id: 0 bus info: pci@0000:07:00.0 logical name: enp7s0 version: 0a serial: ec:b1:d7:df:8d:40 size: 100mbit/s capacity: 100mbit/s width: 64 bits clock: 33mhz capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-

Will the Samsung galaxy s7, run Ubuntu mobile OS - Ask Ubuntu

this question has answer here: what hardware ubuntu touch support? 13 answers i planning on buying galaxy s7 , run ubuntu's mobile os on it, phone able run stably? as page states, there no image galaxy s7. folks ubports.com not working on answer no, sorry.

Font rendering issue - Ask Ubuntu

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i have issue font quality. changed desktop monitor. after that, have font quality issue. attached picture, can see font little blurry. when use monitor ms windows desktop, there no font quality issue. looks perfect. as figured issue, looks sub-pixel channel issue. tried changed options (hinting, anti-aliasing, sub-pixel chanel order) didn't work me. can monitor driver problem or miss font setting? can give me feedback this?

14.04 - How can I run a local command (to run a script) on (just before) log out of a Unity session? - Ask Ubuntu

at risk of posting duplicate question: how can run local script (as current user) when log out? i read (and tried) among others: this one (marton's version), did nothing, used on simple script creating file, absolute paths script (being executable) , file. this one , must outdated; made me remove file command line able use system again. i looked this one , without succes. i believe must doing wrong here, cannot find out blind spot. context looking elegant solution (workaround) this question , presumably result of bug, made script that, depending on argument, either takes snapshot of current desktop icon arrangement, or arranges icons , according last snapshot. script works fine, no candidate run background script. the script therefore should run on logout get arrangement, run current user. basic theory as may or may not know , lot of unity actions implemented using dbus . big convenience dbus can perform lots of root-required actions calling app