Primitatvve

is effective? there danger? sudo apt-get update && sudo apt-get dist-upgrade and then sudo apt-get clean && sudo apt-get autoclean && sudo apt-get autoremove by way run linux in vmware should run ubuntu tweak? thanks actually, don't need clean after linux, deletes temp files on shutdown. command cleans current session. if running server, or piece of critical hardware not shut down, wouldn't hurt clean every , then. remember, isn't microsoft. :) as ubuntu tweak, i've never used it, although quick search reveals no longer being maintained. personally, if piece of software no longer being updated , supported, rid of it. hope helps!

today uninstalled xubuntu , did fresh install of ubuntu 16.10 as done, entered login menu. noticed screen sort of flickering. thought fix after installed newest nvidia drivers. additional drivers installed 367.57 , rebooted. after didn't fix it, installed 370.28. did not fix it. i believe it's brightness. i've seen lot of people issue of "screen flickering", can tell different issue. reference, here's video of screen both on installation , using live usb. installation: https://www.youtube.com/watch?v=ewmrohkb1gy live usb: https://www.youtube.com/watch?v=76rgn1yeat8 speaking of youtube, notice flickering not present when have full screen video up, affect video while it's not in fullscreen i'm @ loss. have no idea how fix this, , google doesn't seem have solution. maybe i'm searching wrong thing? i want use ubuntu, don't see how viable. if can't fix asap i'll have xubuntu or try distro. i using laptop: https://www.

i've installed ubuntu 16.04 on machine had windows 10 installed, believe installed in uefi mode. upon installing ubuntu came across option disable secure boot, didn't because wasn't sure do. after installation finished, system boots windows directly without showing grub menu. there solution this? i have single partition dedicated windows shrinked, alongside system , windows recovery partitions. the laptop acer.

when launch nautilus terminal following error printed , nautilus doesn't open up. (nautilus:25179): glib-gio-critical **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != null' failed (nautilus:25179): glib-gio-critical **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != null' failed not register application: timeout reached (nautilus:25179): gtk-critical **: gtk_icon_theme_get_for_screen: assertion 'gdk_is_screen (screen)' failed (nautilus:25179): glib-gobject-warning **: invalid (null) pointer instance (nautilus:25179): glib-gobject-critical **: g_signal_connect_object: assertion 'g_type_check_instance (instance)' failed what problem?? this answer cortopy in ask.fedoraproject.org , worked me. i've been experiencing similar problem today, couldn't open nautilus @ all. i'm wondering if due recent update clash. this isn't sol

a few quick question. ubuntu server 16.04 lts support java 7? how check if installed? when java -version says: openjdk version "1.8.0_91" openjdk runtime environment (build 1.8.0_91-8u91-b14-3ubuntu1~16.04.1-b14) openjdk 64-bit server vm (build 25.91-b14, mixed mode) i'm not sure, don't see jre or 7 on there. not sure if jre needed running game servers (ex. minecraft, bungeecord minecraft, etc...). think have jdk 8 installed fine. need know how jre on server. sorry if seem bit confused need. i'm lost. your system using openjdk - free,open , in ubuntu repository. jre 7 talking oracle java runtime environment doesn't comes in ubuntu repository. need manually install jre 7 , activate system wide use it. developement , cases prefer use oracle java rather openjdk whilst basic idea of both provide suitable java environment. install , activate oracle java 7 can following. sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo

my trackpad isn't working anymore in windows os after installing ubuntu 16.04.1. checked configurations , set bios default settings.. , still, isn't working :/ you have accidentaly pressed toggle trackpad button (fn+fsomething). try pressing again.

i have installed steam , dota 2. when try play dota2 pops : unable start game. failed create opengl context. graphics card must support @ least opengl v3.1 can run game dota 2 in windows 10, when try play in ubuntu fail. my os ubuntu 16.04 lts 64 bit my hardware : cpu : intel core i3 350m 2.26 ghz ram : 4 gb graphics : intel hd graphics please solve problem. as @celticwarrior said, in official documentation graphics card, opengl v3.1 , above not supported. graphics card may able run required version of directx, not opengl. in order run dota 2, either need go windows or upgrade hardware supported model.

recently, i've started whole bunch of errors during install. no matter, install: http://paste.ubuntu.com/23373166/ update: ok, i've dug point. ran: sudo /usr/lib/insserv/insserv -f and gave me this: insserv: warning: script 'showfsck' missing lsb tags , overrides insserv: there loop between service reniced , showfsck if stopped insserv: loop involving service showfsck @ depth 2 insserv: loop involving service reniced @ depth 1 insserv: stopping showfsck depends on reniced , therefore on system facility `$all' can not true! insserv: can not remove(../rc0.d/k04avahi-daemon): permission denied insserv: can not symlink(../init.d/avahi-daemon, ../rc0.d/k03avahi-daemon): permission denied insserv: can not remove(../rc1.d/k04avahi-daemon): permission denied insserv: can not symlink(../init.d/avahi-daemon, ../rc1.d/k03avahi-daemon): permission denied insserv: can not remove(../rc2.d/s08plymouth): permission denied insserv: can not symlink(../init.d/plymout

i checked ubuntu pc dirtycow vulnerability, using following code downloaded here . compiled , run code , run.when execute code using cc . $ gcc cowroot.c -o cowroot -pthread $./cowroot it's got root access, after few sec freeze ubuntu.i want know how freeze happening more details: arch:x86_64

i installed ubuntu 16.10 on desktop , have usb deathadder. problem can't see cursor because appears in top left of screen. mouse still moves cursor graphic doesn't follow i able fix installing nvidia-370 drivers. try following steps: press ctrl + alt + f1 @ login screen. drop down console can login user account. run sudo service lightdm stop use following commands download , install nvidia-370. make sure connected internet: sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt-get update sudo apt-get install nvidia-370 nvidia-settings disable nouveau driver. step may unnecessary did anyway. edit file /etc/modprobe.d/blacklist.conf , add blacklist nouveau @ bottom. save , exit. run command sudo update-initramfs -u restart sudo reboot

when attempt install mongodb using instructions on https://docs.mongodb.com/getting-started/shell/tutorial/install-mongodb-on-ubuntu/ on 16.04 following result on install step: jonathan@poseidon:~$ sudo apt-get install mongodb-org reading package lists... done building dependency tree reading state information... done package mongodb-org not available, referred package. may mean package missing, has been obsoleted, or available source e: package 'mongodb-org' has no installation candidate i checked http traffic wireshark , found traffic http list , http 304 response suggests problem lies in local configuration files. sources.list.d file contains following entry: mongodb-org-3.4.list what need continue troubleshoot problem? edit: tried again on new install of 16.04 under virtualbox. retrieved key, created list file, , did sudo apt update following results: jonathan@ubuntu-16:~$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0c49f37303

i trying write floppy image using dd . running command: dd if=fdboot.img of=/dev/fd0 bs=1024 conv=sync status=progress ; sync (though i've tried simple dd if=fdboot.img of=/dev/fd0 status=progress , gotten same result.) however, when dd gets 300kb-700kb written, stops. drive activity light stays lit, , drive continues make noise (only disk noise, no head activity noise), dd shows no more data being written. i've left on hour doing this, never finishes, or moves further. considering moves first few hundred kb in minute should not take long. i've tried several different disks. ideas? bad drive? i'm on ubuntu 16.10, btw.

long story short: want dual boot using live usb installer won't recognize windows os present won't list system disk possible install location system disk , partitions shown in gparted hibernate /off swap /off hardware raid 1 6tb ld (x2 3tb) 400gb unallocated hdd space on system disk amd phenom ii x4 3.4ghz 16gb ram 64-bit windows 10 os asus m5a97 r2.0 motherboard raid please assist. i've seen few options i'm afraid of messing raid configuration in windows. not mention os itself.

this question has answer here: how roll ubuntu previous version? 9 answers hi guys have laptop dual-booted ubuntu 16.10 , windows 7. wondering if downgrade 16.04 lts , btw installed 16.04 upgraded 16.10. want go 16.04 because lot of software want hasn't been released 16.10 "yakkety" there no way of doing "rollback" ubuntu 16.04 lts. backup, 16.04 lts installation files , clean install.

issue:- desktop doesn't load , can access os using alt+ctrl+f1 already tried:- ubuntu desktop not load sudo apt-get update sudo apt-get autoclean sudo apt-get clean sudo apt-get autoremove sudo apt-get install compizconfig-settings-manager export display=:0 ccsm ccsm took long time , showed nothing on command line stopped ctrl+z sudo apt-get install unity-tweak-tool unity --replace did nothing too ubuntu handbook dconf reset -f /org/compiz/ setsid unity my pc:- ubuntu 16 lts graphics card - radeon amd a8 laptop - hp things did last before crash :- i earlier having issues linking ide server , jdk first learnt (using trial , error method involving depaclaging jdk here , there , trying set environmrnt variables , never touched tools unity came picture now) although had installed gnome tweak tool using package manager , used reduce icon sizes , things that i depackaged eclipse, apache server, jdk (all 3 files extracted on desktop , eclipse workspace

i installed ubuntu 16.04.1 on intel nuc5cpyh celeron n3050 processor. there no sound output, neither on hdmi nor on analog jack. system settings , pavucontrol show "dummy device", alsamixer doesn't start because there no device found. cat /proc/asound/cards --- no soundcards --- lspci -nn | grep audio returns blank, output of lspci -nn here: http://paste.ubuntu.com/23407703/ what can working? additional debug info should post? from intel linux support, must install latest alsa driver ubuntu. in terminal window, run following: sudo add-apt-repository ppa:ubuntu-audio-dev/alsa-daily sudo apt update sudo apt install oem-audio-hda-daily-dkms sudo reboot

i seeing difference in huge page values between /etc/default/grub file , /proc/meminfo. have got 107520 in /etc/default/grub file. /proc/meminfo shows 106856. can reason? root@node:~# cat /proc/meminfo | grep huge anonhugepages: 356352 kb hugepages_total: 106856 hugepages_free: 106856 hugepages_rsvd: 0 hugepages_surp: 0 hugepagesize: 2048 kb root@node:~# cat /etc/default/grub | grep grub_cmdline_linux= grub_cmdline_linux=" console=tty0 net.ifnames=0 biosdevname=0 rootdelay=90 nomodeset hugepagesz=2m hugepages=107520 isolcpus=1,2,3,4,5,6,7,8,9,10,11,25,26,27,28,29,30,31,32,33,34,35,13,14,15,16,17,18,19,20,21,22,23,37,38,39,40,41,42,43,44,45,46,47, root=uuid=f1607a89-1aaa-4766-8e66-936e3a44e223 " root@node:~# cat /proc/cmdline boot_image=/vmlinuz-3.13.0-85-generic root=/dev/mapper/os-root ro console=tty0 net.ifnames=0 biosdevname=0 rootdelay=90 nomodeset hugepagesz=2m hugepages=107520 isolcpus=1,2,3,4,5,6,7,8,9,10,11,25,26,27,28,29,30,31,32,

i have decided turn old xeon e3-1241 v3 nas. obvious reasons want use little power possible have gone bios , have lowered clock speed 800mhz. part fine, wall meter shows machine pulling ~60w in bios. now when go boot machine, somehow ubuntu boot process overrides bios set multiplier , happily pulls ~140w wall duration of the boot. as finishes boot process hits crontab @reboot /usr/sbin/cpufreq-set -u 0.8ghz sets bios defined settings. prevent swapping ondemand @ 60 second mark have removed /etc/init.d/ondemand . happily stays @ 800mhz , 45-60w of time except when booting. perfect.. almost. i need force stay @ 800mhz while booting intend set lower vcore voltage save more power (and prolong cpu/vrm/motherboard lifespans) cannot life of me work out why overrides bios settings during boot. when tries boot low vcore voltage panics half of time trying run cpu @ full 3.5ghz duration of boot process. wall meter confirms reading of high current pull during boot , since machine has no

firstly, sorry maybe, english isn't enough. i'm using "auto hide" function unity launcher. want show launcher when desktop appearing. (so, show launcher when using desktop or there no maximized window) how can without bash script? (execute shortcut etc. don't want this) i know said weren't looking script or shortcut, have press or click on maximize window. there post asking same thing resolved script , key-binding. thing is, work done. need copy script , set input key. reason won't work you? previous solution

usually, laptop screens dim set lowest level of brightness when charger not present, , brighten max level if charger present/connected. however, on dell inspiron 7559 skylake laptop, not happen. laptop on 100% brightness. how can retrieve "feature"? introduction the script below modified version of previous scripts, written in python , using dbus exclusively polling ac_adapter presence , setting screen brightness. usage usage simple: call command line python ./brightness_control.py the script defaults 100% brightness on ac , 10% on battery. users can use -a , -b set desired brightness levels on ac , battery respectively. as given -h option: $ ./brightness_control.py -h usage: brightness_control.py [-h] [-a adapter] [-b battery] simple brightness control laptops, depending on presense of ac power supply optional arguments: -h, --h

i have wget installed (version 1.17.1), when try use says: no command '​wget' found, did mean: command 'wget' package 'wget' (main) command 'owget' package 'ow-shell' (universe) command 'pwget' package 'pwget' (universe) wget: command not found i'm pretty sure i'm missing dumb here, can't figure out. help? edit: result of echo $path, type -a wget , stat /usr/bin/wget is: /home/danielgreenfeld/bin:/home/danielgreenfeld/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin wget /usr/bin/wget file: '/usr/bin/wget' size: 474656 blocks: 928 io block: 4096 regular file device: 808h/2056d inode: 6160959 links: 1 access: (0755/-rwxr-xr-x) uid: ( 0/ root) gid: ( 0/ root) access: 2016-11-01 16:38:14.860447561 +0200 modify: 2016-06-14 11:18:09.000000000 +0300 change: 2016-11-01 16:14:17.066538291 +0200

this question has answer here: how remove ubuntu , put windows on? 14 answers grub rescue problem after deleting ubuntu partition! [duplicate] 4 answers was running ubuntu 14.02 , windows 10 in dual boot (using grub boot menu). went uninstall ubuntu , started deleting ubuntu partitions , expanding windows 1 using windows partition tool. then booted windows 10 usb attempt reinstall windows bootloader. went command prompt , entered bootrec.exe /fixmbr . said operation completed successfully. restarted computer expecting windows boot went screen saying 'minimal bash-line editing supported'. can't seem past it. please help!

i had no network on pc , installed many (hundreds) .deb packages command sudo dpkg -i *.deb the installed applications working (wine, vlc etc) when opening synaptic, have 207 broken packages... afaik packages broken if have unresolved dependencies. if rightclick 1 of broken packages none of dependencies italic... so, if works why many packages "broken"? edit seems not installed application working. of them need libraries aren't installed. also, think packages messed system: important settings have been resetten (display resolution, keyboard , mousepad) . i guess uninstalling packages simpliest way resolve problems. correct me if i'm wrong that's purely “by accident”. missing dependencies start cause problems once try to use functionality or install, upgrade, or remove packages via apt , front-ends (like synaptic).

i adjust partition sizes , move them, wondered if launch gparted hard drive. according link on gparted site: gparted live on hard disk it appears can. how large of partition have create? don't see file size shown live image on page. i know use thumb drive or cd, convenience tend forget put last thumb drive used, or not able find 1 each time need one... with grub2, can use loopmount command directly boot iso anywhere. issues in setting correct drive & partition grub find iso. sdb drive, having flash drive plugged in changed drive hd2, not hd1 should be. have manually edit entries. i have had iso in own partition, in /boot folder or anywhere. lots of details & second link has many examples of iso booting. https://help.ubuntu.com/community/grub2/isoboot https://help.ubuntu.com/community/grub2/isoboot/examples older example of flash drive bios boot configuration: multi-partition multi os bootable usb this works uefi, if boot grub2 using uefi

the printer function worked 'out of box' via wifi had struggle getting scanner work, , ended having connect via usb cable , use simple scan. recently, has stopped working. on epson site dl , install imagescan-bundle-ubuntu-14.04-1.1.13.x64.deb. installed it, complained couldn't find libboost-filesystem1.54.0. installed libboost-all-dev, latest version seems 1.58.0, when rerun imagescan install still complaining can't find 1.54.0 ! does know maintains code imagescan, , there way version of code uses latest version of libboost, or there other way around scanner working again? scanner software development must unsexy in ubuntu circles, interfaces windows 386, , when it's working, seems quite buggy , temperamental. :) this works on fedora... make sure printer connected network, then cd /etc/imagescan/ sudo -h gedit imagescan.conf (use favourite text editor) change following line... ;myscanner.udi = networkscan:esci://192.168.xxx.xxx:18

i have errors while running android skd manager. tried run ./android , sudo ./android , changed settings > force https://... sources fetched using http://... . nothing helped. am missing something? os: lubuntu 16.10 64bit androidskd: android-sdk_r24.4.1-linux xxx@yyy:~/soft/android/android-sdk-linux/tools$ java -version openjdk version "9-ubuntu" openjdk runtime environment (build 9-ubuntu+0-9b134-2ubuntu1) openjdk 64-bit server vm (build 9-ubuntu+0-9b134-2ubuntu1, mixed mode) xxx@yyy:~/soft/android/android-sdk-linux/tools$ ./android exception in thread "loading sources" java.lang.exceptionininitializererror @ javax.crypto.jcesecuritymanager.<clinit>(java.base@9-ubuntu/jcesecuritymanager.java:65) @ javax.crypto.cipher.getconfiguredpermission(java.base@9-ubuntu/cipher.java:2595) @ javax.crypto.cipher.getmaxallowedkeylength(java.base@9-ubuntu/cipher.java:2619) @ sun.security.ssl.ciphersuite$bulkcipher.isunlimited(java.base

when installing ubuntu 16.04 on server, created different partitions root ( / ) , home ( /home ). root partition 15gb , home 40gb. had upload large amount of files server got error message root running out of free space. found strange, because uploaded files /home partition. when checked file system saw files in /home occupy space in / , in /home though these different partitions. i tried problem still persistent. solution problem? how make files occupy space in /home ? the output of df -h is: udev 1,8g 0 1,8g 0% /dev tmpfs 369m 39m 330m 11% /run /dev/sda8 14g 13g 593m 96% / tmpfs 1,8g 352k 1,8g 1% /dev/shm tmpfs 5,0m 4,0k 5,0m 1% /run/lock tmpfs 1,8g 0 1,8g 0% /sys/fs/cgroup /dev/sda9 47g 7,8g 36g 18% /home tmpfs 369m 68k 369m 1% /run/user/1000 tmpfs 369m 8,0k 369m 1% /run/user/108 the output of lsblk is: name maj:min rm size ro type m

i (trying) write simple python script ubuntu based os. part of script, notification shown. now, have gone through number of posts on here each 1 have accompanying question (and problem). following different ways, have tried (and associated issue), using notify2 this has largely worked well. however, following issue, a. reason, icon isn't being shown in notification bubble , there no error. simple print statement, print(os.path.abspath('icon.svg') , returning path, yields correct path still no image. here's exact code using, def show_notification(title, content): notify2.init(title) n = notify2.notification(title, content, os.path.abspath('icon.svg')) n.show() using gi.repository import notify following hello-unity file here . tried use notify. have not been able running @ all! last time tried, got error importerror: cannot import name notify running script python test.py . running same using python3 in python3 test.py results in

i see full how-to guide on how install ubuntu. first, need download current version of ubuntu @ download ubuntu desktop . select architecture (32-bit vs 64-bit), , click big orange button. if computer has @ least 2gb of ram, select 64-bit version of ubuntu. if unsure of flavor need, select 32-bit run if have 64-bit processor. may download distro release, such kubuntu or xubuntu or other flavours . next, downloading large .iso file, 800mb-1.6gb. can take few hours, depending on connection speed. let file download. then, burning onto dvd or liveusb. ubuntu 14.04 .iso file large fit on cd, need either burn dvd or else make ubuntu live usb using flash drive has @ least 2gb. (links windows, if switching operating system check "easy ways switch ubuntu" section on the download page. ) if using windows 7 or higher, may double-click file (assuming don't have program associated it). otherwise, install imgburn (sadly, not open source). may may able right-click ,

this issue happens on uefi systems enabled secure boot. when try install dkms modules virtualbox, nvidia, or broadcom drivers, not install , required key not available when try modprobe them. virtualbox complains vboxdrv not loaded. broadcom wl driver shown in lspci -k kernel module not in use. sudo modprobe wl throws required key not available . also issue may happen when install kernel modules git sources. this issue may appear after kernel update disabled wireless adapter, black screen after reboot, etc. how can fix it? since ubuntu kernel 4.4.0-20 efi_secure_boot_sig_enforce kernel config has been enabled. prevents loading unsigned third party modules if uefi secure boot enabled. the easiest way fix issue disable secure boot in uefi (bios) settings. in cases can uefi settings using grub menu. press esc button on booting, grub menu , select system setup. secure boot option should in "security" or "boot" section of uefi. you

i have ubuntu 16.04 has been perfect until now. it has been printing since day 1 other day got error stupidly failed write down , didn't go @ /var/log/syslog . the error cups directory gone missing. @ point had not been messing configuration, broke itself. i thought rather me manually create whatever has gone missing, fix removing , re-installing software. i removed , re-installed both hp's print software "hplip" , "cups". seems have wrecked cups completely. no longer starts. below systemctl status output cups , before , after start command: $ systemctl status cups cups.service - cups scheduler loaded: loaded (/lib/systemd/system/cups.service; enabled; vendor preset: enabled) active: failed (result: exit-code) since sun 2016-11-06 10:06:50 gmt; 55min ago docs: man:cupsd(8) process: 1029 execstart=/usr/sbin/cupsd -l (code=exited, status=1/failure) main pid: 1029 (code=exited, status=1/failure) nov 06 10:06:50 vw-desk2 systemd

when try remove mplayer lubuntu 16.04, system tries remove unrelated programs bleachbit, deluge, virtualbox... with sudo apt-get autoremove mplayer : reading package lists... building dependency tree... reading state information... following additional packages installed: gcc-5-base:i386 gcc-6-base:i386 i965-va-driver:i386 liba52-0.7.4:i386 libaa1:i386 libaacs0:i386 libacl1:i386 libasn1-8-heimdal:i386 libasound2:i386 libass5:i386 libasyncns0:i386 libattr1:i386 libaudio2:i386 libaudiofile1:i386 libaudit1:i386 libavahi-client3:i386 libavahi-common-data:i386 libavahi-common3:i386 libavcodec-ffmpeg56 libavcodec-ffmpeg56:i386 libavformat-ffmpeg56:i386 libavutil-ffmpeg54:i386 libbdplus0:i386 libbluray1:i386 libbs2b0:i386 libbsd0:i386 libbz2-1.0:i386 libc6:i386 libcaca0:i386 libcap2:i386 libcdio-cdda1:i386 libcdio-paranoia1:i386 libcdio13:i386 libcomerr2:i386 libcrystalhd3:i386 libcups2:i386 libdb5.3:i386 libdbus-1-3:i386 libdca0:i386 libdirectfb-1.2-9:i386 libd

for project have develop tcp client server connection in c. i've done both files , both working localhost address 127.0.0.1. however, i´d run 2 server simultaneously, 1 127.0.0.1 , other 127.0.0.2 example. to that, set ip address each terminal window. haven't found how that. i've found information loopback, ip addr add 127.0.0.2 dev lo , don't know how run each window ip. possible? how? i know work if had different ports, or if had different server's code changing specified ip 127.0.0.1 on 1 , 127.0.0.2 on other. however, thing is, want know if possible specify 1 each terminal example can use same server code on them. that's simulating connection different computers. as now, set addr inaddr_any , connection 127.x.x.x accepted , works. them again, on same port number, need, want run 2 or more server simultaneously, need different ips. , localhost set 127.x.x.x, want narrow down, each terminal receives "part" of localhost address tha

this question has answer here: ccleaner equivalent? 5 answers i wondering equivalent ccleaner in linux . , software need install make ubuntu faster. , how delete temp files,%temp% fils,prefetch files, , cache . have no idea beachblit when computer getting full, bleachbit frees disk space. when information business, bleachbit guards privacy. bleachbit can free cache, delete cookies, clear internet history, shred temporary files, delete logs, , discard junk didn't know there. designed linux , windows systems, wipes clean thousands of applications including firefox, internet explorer, adobe flash, google chrome, opera, safari,and more. beyond deleting files, bleachbit includes advanced features such shredding files prevent recovery, wiping free disk space hide traces of files deleted other applications, , vacuuming firefox make fast

while computer still on, location of usb hard drive keeps changing between letters. goes /sda /sdb, , continues down alphabet. within span of 3 mins can't access files on drive. ideas of how fix this? tried mounting using uuid still unmounts how.

recently have installed older version of ubuntu on old machine. whenever try install software, error saying couldn't found: $ sudo apt-get install vlc reading package lists... done building dependency tree reading state information... done e: couldn't find package vlc the repositories older releases not supported (like 11.04, 11.10 , 13.04) moved archive server. there repositories available @ http://old-releases.ubuntu.com the reason is out of support , no longer receiving updates , security patches. i urge consider supported distribution. if computer old in terms of memory or processor should consider distribution such lubuntu or xubuntu. if want continue using outdated release edit /etc/apt/sources.list , change archive.ubuntu.com , security.ubuntu.com old-releases.ubuntu.com . you can sed : sudo sed -i -re 's/([a-z]{2}\.)?archive.ubuntu.com|security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list the

when type in command alias funny things don't understand: rick@dell:~$ alias alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"' alias egrep='egrep --color=auto' alias fgrep='fgrep --color=auto' alias grep='grep --color=auto' alias l='ls -cf' alias la='ls -a' alias ll='ls -alf' alias ls='ls --color=auto' the first command / alias seems nothing when type: rick@dell:~$ alert "it's raining" how, where, when , why alert command supposed used in alias ? duplicate close thoughts: the proposed duplicate explains alert alias great extent doesn't explain why typing alert "it's raining" not result in notification bubble. the question above ask complete explanation though cv duplicate satisfied. a day after

lab: nr. 1 host ubuntu 16.04lts - lxd & zfs nr. 2 - lxc container (maas & juju) i've create container maas, , it's in running state $: lxc list +-------------+---------+--------------------+------+------------+-----------+ | name | state | ipv4 | ipv6 | type | snapshots | +-------------+---------+--------------------+------+------------+-----------+ | xenial-maas | running | 10.20.40.29 (eth0) | | persistent | 0 i'd create lxd xenial controller juju using following command $: juju bootstrap lxd xenial-juju --debug after having started container $: lxc list +---------------+---------+--------------------+------+------------+-----------+ | name | state | ipv4 | ipv6 | type | snapshots | +---------------+---------+--------------------+------+------------+-----------+ | juju-6f0b4e-0 | running | 10.20.40.57 (eth0) | | persistent | 0 | +---------------+---