Primitatvve

i trying install opencv 3.1.0 library , getting error after run make : in file included /usr/include/c++/6/ext/string_conversions.h:41:0, /usr/include/c++/6/bits/basic_string.h:5402, /usr/include/c++/6/string:52, /usr/include/c++/6/bits/locale_classes.h:40, /usr/include/c++/6/bits/ios_base.h:41, /usr/include/c++/6/ios:42, /usr/include/c++/6/ostream:38, /home/alex/opencv/opencv/modules/ts/include/opencv2/ts/ts_gtest.h:55, /home/alex/opencv/opencv/modules/ts/include/opencv2/ts.hpp:28, /home/alex/opencv/opencv/build/modules/core/perf_precomp.hpp:12: /usr/include/c++/6/cstdlib:75:25: fatal error: stdlib.h: no such file or directory #include_next <stdlib.h> i have tried numerous times (re)install different versions of libstdc++ , thinking problems stems here , have double checked needed dependencies, no avail. i have looked in /usr/include/c++/6/ folder , fil...

whilst starting ubuntu 16.04 encounter same set of issues.. first attempt: i'll hit power button, after hitting 'ubuntu' grub. second attempt: once again make past bios we'll hit decrypt key phase; keyboard, , other usb devices become unresponsive if they've been disconnected. the way may startup computer entering recovery mode. when i'm logged in things such wallpaper, , desktop items reset. ideas?

installed 16.10 server on ibm 3650 m3 2 quad core xeon e5630 processors. server runs 16 compute intensive apps driving each core 100%. after install of 16.10, cores (maybe 2 or 3) run @ 100% others fail exceed 50% length of time. system avgs 100% busy everyday after 16.10 install, ran @ 50%. top showed 51% busy , 49% idle 16 jobs running. fell 16.04 , 16 jobs ran normally, driving each core 100%. suspect there might possible cpu firmware problem in 4.8 kernel. else encountered issue. btw, 16.10 installed on other cpu models e55xx , i5 series don't seem have problem. else encountered issue?

i trying toggle desktop going lower left corner. used hotcorners unity tweak tool setting corner "toggle desktop" doesn't work. other functions corner work should though. why happening? if have other alternatives succeed feel free mention them.

i installed ubuntu 16.04 on macbook pro yesterday , today noticed key right below esc isn't correct. should produce ` , ~ (which under os x), produces < , >. haven't tested whole keyboard, don't know if there others. there way fix without reinstalling ubuntu? here's fix worked macbookpro 12,1 (retina) on xubuntu 16.04 lts "xenial" running kernel 4.8.0-51 generic back before editing: nano /usr/share/x11/xkb/symbols/pc comment out key <lsgt> { [ less, greater, bar, brokenbar ] }; and add key <lsgt> { [ grave, asciitilde, grave, asciitilde ] }; apply change rm -rf /var/lib/xkb/* logout/login. thanks timofey ( source here )

i trying ssh home laptop(ubuntu 16.04), on private network, ip 10.12.x.x, work machine, @ university network, ip 10.100.x.y, running ubuntu 16.04. i unable establish connection , "connection timed out" message. if try ssh when laptop on same network work computer,it works flawlessly. any thoughts why happens? you can't connect private network outside. university have give public ip machine want connect to. have handle port forwarding end send desired traffic (ie specific ports) machine. the same goes if want connect home computer university. home computer on router. have connect public ip (most ip of router or provide modem ip) have traffic forwarded private ip of computer. the options in modem's setup port forwarding in firewall or security section. companies allow outside networking , connecting computers provide vpn (virtual private network) connectivity provide remove facilities ip of vpn can connected on same network different location...

i'm new of , had few questions. i'm looking run ubuntu directly 128gb usb 3.0 flash drive. read ubuntu page creating bootable usb stick windows 10 using rufus usb installer. guide should follow? i have relatively new laptop has advanced boot options boot via usb. end goal here have ubuntu installed on usb stick. don't want use vm , don't want try dual boot, or wipe windows install. want ubuntu installed on pc, run usb. guide for? i've installed ubuntu before on old laptop bought friend years ago. remember when did used usb drive, didn't make bootable drive. had options install alongside windows, on windows , try before install. i want os, data, working directories, etc located , run usb. when unplug don't want have trace of on laptop. want keep 2 separate. church , state, speak. is bootable usb stick option using rufus or should go vm? in advance! when run ubuntu installer (as windows installer), have option of choosing drive , partitio...

regarding secure-delete command in linux, difference between srm -f , srm -l , srm -fl ? fastest? secure? -f fast (and insecure mode): no /dev/urandom, no synchronize mode. -l lessens security. 2 passes written: 1 mode 0xff , final mode random values. ubuntu manuals

i have installed ubuntu few weeks ago try linux first time. used acer cloudbook 14 , hard drive shows memory card in ubuntu. recently, in process of formating sd card 3 partitions on it. started deleting partitions , wondered why had multiple partitions on sd card. finding strange, stopped , closed window thinking canceled process. system worked fine until rebooted. the bios displayed message saying couldn't find bootable os. able restore partitions testdisk , bootable usb stick ubuntu on it. name fstype size mountpoint label sda 29.3g └─sda1 vfat 29.3g /cdrom ubuntu 16_0 loop0 squashf 1.4g /rofs mmcblk0rpmb 4m mmcblk0boot0 4m mmcblk0boot1 4m ...

i managed make usb boot pc that's os(win10) best can tell has been corrupted. have begun installation , asked "what do?" since pc has windows boot manager on it. not want delete programs, docs, photos, etc, since hoping on retrieving data using ubuntu. so, select "something else" allowing me create or resize partitions myself, or choose multiple partitions ubuntu. don't know here. appreciated. found instruction on here windows 7 , photos , explanation leaving me unsure of needed do. thank you with ubuntu bootable usb select option try ubuntu without installation. believe can access files of windows os there, attach other usb stick/portable hard drive , copy important files.

i have downloaded zip file of c programs website https://www1.maths.leeds.ac.uk/~wally.gilks/adaptive.rejection/web_page/welcome.html i have extracted zip file , tried run c program arms_main01.c in ubuntu terminal, program throwing error in linking other files. how can run file ubuntu terminal? the directory contains: arms01a.m arms02.m arms.doc arms_main01a.c arms_main02.c arms.nouniform.c arms01.m arms.c arms.h arms_main01.c arms.method compile using gcc open terminal inside directory , type: gcc -c arms_main01.c -o arms_main01.o gcc -c arms.c -o arms.o gcc -o arms01 arms_main01.o arms.o -lm -lc running program executable file created called: arms01 , run as: ./arms01 output result program created output file called: arms.out01 , see content: cat arms.out01 done. by way, directory contain 3 main programs: arms_main01.c, arms_main01a.c, arms_main02.c in example above, compile , run: arms_main01.c please see: arms01.m, ...

i mounted usb device on desktop , can't see have in it. see desktop usb device , can't unmount it. can do? open terminal, , run: sudo umount /home/$user/desktop (adjust language if necessary) should unmount usb drive , restore normal desktop. if not, please, leave comment.

from number of files, need create new file each line of text sequence of respective lines original files. so, let's have 2 files structure this: file1: aaaa bbbb cccc file2: xxxx yyyy zzzz i need combine them result like: aaaaxxxx bbbbyyyy cccczzzz how can bash script? use paste command: paste -d '' file1 file2 by default, paste joins lines tabs, need use -d option tell use empty string joining.

i have used nvidia-304 lubuntu through 16.04. (with nouveau, @ time or other, screen "crashes" , have hard-shutdown) this time, 16.10, first noticed 3 screen resolutions possible - max being 1024x768. further research showed: monitor settings: "the following monitor detected... default monitor" scott@scott-asus-m2n68-am-plus:~$ sudo lshw -c video [sudo] password scott: *-display unclaimed description: vga compatible controller product: c61 [geforce 7025 / nforce 630a] vendor: nvidia corporation physical id: d bus info: pci@0000:00:0d.0 version: a2 width: 64 bits clock: 66mhz capabilities: pm msi vga_controller bus_master cap_list configuration: latency=0 resources: memory:de000000-deffffff memory:c0000000-cfffffff memory:dd000000-ddffffff memory:c0000-dffff scott@scott-asus-m2n68-am-plus:~$ xrandr xrandr: failed size of gamma output default screen 0: minimum 640 x 480,...

i'm web developer , need microsoft edge testing on ubuntu. i know can have microsoft edge by: installing windows on virtual machine. linux - windows dual boot. but these solutions, have buy windows while i'm not using everyday computing. can't rid of windows these solutions. i've read articles microsoft edge on linux couldn't find solution. in 2015 did conference , edge on linux still doesn't happening: woah, can test edge & ie on mac & linux! i found this , seems microsoft doesn't care edge on linux. @ least now: but although company has no plans bring edge on other platforms, answer not definitive “no.” instead, microsoft says might need additional time browser right on windows devices, pcs, tablets, or smartphones, , start thinking bringing on ios, android, linux, , mac. is there anyway have microsoft edge on linux without vm? first, install virtualbox: https://www.virtualbox.org/wiki/linux_downloads ...

i have dual-boot windows 10/xubuntu 16.04 set up. both share small ssd boot, , both have home directories on data drives. for xubuntu, /dev/sdc data drive, , it's mounted @ /mnt/archives . when ran usermod -d /mnt/archives/mike mike against user move home drive data drive, worked fine after reboot. when changed home directory, had /dev/sdc mount under id=0,gid=0 , mounting root. changed mount id=mike,gid=mount_group , , rebooted computer. however, when go run sudo chown -r mike:mount_group /mnt/archives/mike/* , doesn't change of permissions. :/ here /etc/fstab file: # cat /etc/fstab # /etc/fstab: static file system information. # # use 'blkid' print universally unique identifier # device; may used uuid= more robust way name devices # works if disks added , removed. see fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> # / on /dev/sdd3 during installation uuid=8db38c8f-87b6-4174-a439-fd60...

i have unistalled , reinstalled ubuntu software center per info found in similar thread , got same response line 91 or that. i tried upload screen shot since i'm new won't allow me to. can not figure out how cut , paste have hand type error screen says, both when attempt open software center , nothing happens, when try enter commands terminal uninstall, reinstall, whatever same following: could not intitialize package information unresolvable problem occured while initializing package information please report t:his bug against 'update-manager' package , include following error message: 'e: malformed line 91 in source list/etc/apt/sources.list (dist parse) e: list of sources not read., e: package list of status file not parsed or opened. how report bugs? can done this. have searched , says leads me same line error message. so, don't know how line 91 in source list; tell says. sorry, i'm new this. need find out how there , fix says. not have ...

file icons seem missing on ubuntu computer when using filezilla (shows blank icon every file) doesn't seem happen on windows, intended or can fix somehow? it intended , has been while ( 2010 ). the themes can pick in filezilla not work too. because of different methods different linux systems use. from link: the stock icon, users seeing, file.png selected icon set in filezilla, opencrystal default. this happens when replace /usr/share/filezilla/resources/opencrystal/16x16/file.png /usr/share/filezilla/resources/tango/16x16/file.png : the folder icons change ubuntu theme. assume our themes lack support filezilla(?)

i fresh installed ubuntu 16.04 on amd machine cpu: amd fx 8350 mobo: gigabyte 970a-ud3p (am3+) problem when os first booted both kb , mouse not working , until switched usb3 ports.. i read other kinda similar issues had iommu , people activating in bios , when did went wrong , , usb3 ports not(!) working. i rolled initial setup , came here help.. any ideas? i getting errors on fresh install of ubuntu 16.04 on pc cpu: fx 6300 mobo: ga 970a-ds3p errors this: usb 5-1: device descriptor read/64, error -32 usb 5-1: device descriptor read/64, error -110 usb 5-1: device not accepting address 4, error -32 usb 5-1: device not accepting address 4, error -110 then tried this. first, enable iommu in bios restarting computer , pressing delete enter bios ( 3.0 ports won't work after step, don't worry, soon ) plug usb mouse , keyboard in usb 2.0 ports. save , exit bios then in ubuntu: press ctrl + alt + t open terminal run following command: ...

i got stuck with: mount denied because ntfs volume exclusively opened. volume may mounted, or software may use identified example of 'fuser' command. and when run mount command this: sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) udev on /dev type devtmpfs (rw,nosuid,relatime,size=986036k,nr_inodes=214395,mode=755) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=199708k,mode=755) /dev/sda9 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k) tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,re...

i have noticed suspicious logins root account on server created new admin account , assigned root permissions account , disabled root account. had @ /var/log/auth.log file , can see there no more logins suspicious ip anymore showing: oct 25 06:06:01 serverhostname cron[10452]: pam_unix(cron:session): session opened user root (uid=0) oct 25 06:06:01 serverhostname cron[10452]: pam_unix(cron:session): session closed user root are these scheduled cron jobs? can these ignored? the session entry due cron job running root . being spawned @ 06:06. check relevant cron entries root , find out being run @ time exactly. possible places at: /etc/crontab /etc/cron.d/* /etc/cron.hourly/* root's crontab : crontab -e root if anacron not active: /etc/cron.daily/* /etc/cron.weekly/* /etc/cron.monthly/* just add, if system compromised before, stop using it, take backup (if needed), setup os again. later can analyze backed contents dig further regarding i...

i'm trying use networkmanager library c++ library in order add wifi support in linux app. using ubuntu 14.04 lts. i've tried nmcli through command line, calling app not stable enough , prefer use pure c++ library. i downloaded networkmanager version 1.4.2 "stable". after executing autogen.sh, , make & make install, process ends successfully. when restart machine, though, can't access internet. neither wired cable or wifi dongle. is normal? should if want use library in app? another problem detected in settings/network there following message " the system network services not compatible verison ". i can't use nmcli through command line anymore. errors appears " nmcli: error while loading shared libraries: libnm.so.0: cannot open shared object file: no such file or directory " edit: nmcli solved using post https://stackoverflow.com/questions/13428910/how-to-set-the-environmental-variable-ld-library-path-in-linux . nee...

looking mount afp share on xubuntu 16.04. on 14.04 used afpfs-ng-utils, worked beautifully, looks it's not available 16.04. is reasonable expect afpfs-ng become available 16.04? is there alternative afpfs-ng? seems shouldn't rare thing want mount afp shares ubuntu distro...is true solution 1 slow-to-update , maybe buggy independent project?

i'm following instructions here (see ubuntu section). says me do sudo add-apt-repository ppa:staticfloat/juliareleases sudo add-apt-repository ppa:staticfloat/julia-deps sudo apt-get update but command sudo apt-get install julia gives me 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: julia : depends: libcholmod1.7.1 not installable or libcholmod2.1.2 not installable or libcholmod3.0.6 not installable depends: libumfpack5.4.0 not installable or libumfpack5.6.2 not installable or libumfpack5.7.1 not installable e: unable correct problems, have held broken packages. i using xubuntu 16.10. can p...

as have seen many questions mbstring extention missing, have same , tried answers given on other questions... sudo apt-get install php-gettext sudo apt-get install php7.0-mbstring (all of commands worked fine btw) etc etc... , none of them work... i have ubuntu 16.04 running on vmware virtual machine. thank you.

i have installed ubuntu 16.10, can't boot it. it's shame have looked @ , way is. went install alongside windows 10, , don't know do. i have error came up: (0.535703) end kernel panic - not syncing: vfs: unable mount root fs on unknown - block (0,0) after searched internet, downloaded "boot-repair-disk-64bit" , ran it, , said boot sector fixed, no avail. i have used rufus put "ubuntu-16.10-desktop-amd64 iso" onto usb , burned dvd. i totally lost , being new , not of computer wizard, still love have system working properly, in layman's terms good.

i use ubuntu 14.04 in laptop hp pavillion (4gb ram), in dual boot windows 10. lately i've realised after select ubuntu on grub takes several minutes start. i'd tips fixing problem, since i'm not expert of ubuntu. this bootchart bootchart from dmesg suspicious point this [ 21.819255] fbcon: radeondrmfb (fb0) primary device [ 21.819332] console: switching colour frame buffer device 170x48 [ 21.819366] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device [ 21.819368] radeon 0000:01:00.0: registered panic notifier [ 21.828388] [drm] initialized radeon 2.40.0 20080528 0000:01:00.0 on minor 0 [ 149.519775] init: failsafe main process (735) killed term signal [ 150.838440] audit_printk_skb: 6 callbacks suppressed [ 150.838444] audit: type=1400 audit(1477752769.503:14): apparmor="status" operation="profile_replace" profile="unconfined" name="/sbin/dhclient" pid=890 comm="apparmor_parser" a delay ...

i've installed ubuntu touch on nexus 5, i'm unable launch apps, such browser. know fix? installed via aur versions of ubuntu-device-flash , phablet-tools . so far know there different images nexus 5. if installed 16.04 one, might buggy because it's in development. try find , install 15.04 one. can work better.

i having problems similar described in boot slower after partition resize . summarise repartitioned hard drive more space in / . deleted swap space, resized , repartitioned swap. went cleanly except when trying boot takes 1-2 minutes login screen. as suggested in these other posts: deleted swap, boot takes forever really slow boot on 16.04 i checked blkid outputs in /etc/fstab , edited match. did not solve long boot times though. suggestions? further info: systemd-analyze startup finished in 8.469s (kernel) + 3min 351ms (userspace) = 3min 8.820s output systemd-analyze blame here uninteresting output cat /etc/rc.local here output cat /var/log/boot.log here fstab sudo blkid output so ended fixing removing /etc/crypttab suggested here (link courtesy of pygeek03). still booting until commented out crpytswap line in fstab . after booted @ normal speeds. reference here new fstab file, fstab thanks again everyone's , suggestions.

my small problem on acer laptop (aspire series), sound seems low , sounds crashed-like sound. os: ubuntu 16.04 lts. model: aspire 4736z. here @davidfoster please click link

hi going buy 2 fullhd monitors , plug them laptop not sure if possible. specific have acer aspire v3-572g-76up came with: nvidia geforce 840m (actually there intel graphic embedded, use nvidia) intel i7-5500u hdmi, vga ports as os running ubuntu 16.04 and add 2 of this monitor . hdmi , vga cables should enough task or set not capable of such thing ? also, output xrandr : screen 0: minimum 8 x 8, current 1366 x 768, maximum 16384 x 16384 edp-1 connected primary 1366x768+0+0 344mm x 193mm 1366x768 60.00*+ 1360x768 59.80 59.96 1024x768 60.04 60.00 960x720 60.00 928x696 60.05 896x672 60.01 960x600 60.00 960x540 59.99 800x600 60.00 60.32 56.25 840x525 60.01 59.88 800x512 60.17 700x525 59.98 640x512 60.02 720x450 59.89 640x480 60.00 59.94 680x384 59.80 59.96 576x432 60.06 ...

it arose situation when wanted run script on every time system starts. i noticed there number of places such init.d , rc.local , bash_profile , ~/config/autostart , ~/local/share/applications , ton of other places run @ everytime system starts. quite understandable. show obscure picture of system start-up. may know if can point me standard resource on how briefly , understand various stages involved in booting ubuntu system , (leaving out less interesting junk) of user's actual interest customizations in general? kindly consider did google , found awful resources incomprehensible details. grateful, if can explain in layman terms or, @ least point me place not big-fat reference manual not readable layman. let me upfront nitpickers, these answers not useful: how understand different stages of bootloading? free online ubuntu user guide, simple understand? how ubuntu boot process work? while might share similarity, of them have failed obtain useful beginners. ...

following happens since update 14.04lts 16.04lts. after time of keyboard/mouse inactivity pc turn "standby/sleep" mode (screens turns black) pretty normal. since update pc not want wake after moving mouse of pressing keys. screen remains black , there not other way work pc power off , power on again. of course losing data of files open. knows how change setting? first step turn off suspend when inactive option in 'system settings'. later no files open experiment suspend/resume feature analyzing error logs /var/log/syslog. sorry can't type real answer phone. . short commentary.

a server has 2 wifi interfaces, both configured via network manager hotspots. connected clients ips in ranges 10.42.0.0/24 , 10.42.1.0/24 (afaics via dnsmasq invoked nm). need able assign specific range specific interface. unfortunately, network manager assigns them unpredictably (so wlan0 may 10.42.0.0 today , 10.42.1.0 tomorrow; wlan1 gets remaining range) messes iptables because routing rules different these interfaces. i tried dhcp-range= option in /etc/dnsmasq.conf (which wasn't present nm configures dnsmasq via command line) , other ideas can't find workable solution. any thoughts on how can control ip range gets assigned interface? you can determine used ipv4 subnet configuring 1 manual address, like nmcli connection modify $shared_name ipv4.addresses 192.168.2.5/24 it's documented in man nm-settings , see ipv4.method. /etc/networkmanager/dnsmasq.d using dnsmasq dns plugin, not use case of connection sharing. that, instead /etc/network...

my overall upgrade went well, left critically lingering issue of mysql-server not being able install itself, , nothing trying gets work. this error see when trying install/reinstall it: setting mysql-server-5.7 (5.7.11-0ubuntu6) ... job mysql.service failed because control process exited error code. see "systemctl status mysql.service" , "journalctl -xe" details. invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing package mysql-server-5.7 (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.7; however: package mysql-server-5.7 not configured yet. dpkg: error processing package mysql-server (--configure): dependency problems - leaving unconfigured no apport report written because error message indicates followup error previous failure. processing triggers system...

this question has answer here: how download youtube video? 34 answers which app should install download videos youtube? tos violations there are programs , tools exist this, against youtube's tos . section 5.b : content provided is. may access content information , personal use solely intended through provided functionality of service , permitted under these terms of service. shall not download content unless see “download” or similar link displayed youtube on service content. shall not copy, reproduce, distribute, transmit, broadcast, display, sell, license, or otherwise exploit content other purposes without prior written consent of youtube or respective licensors of content. youtube , licensors reserve rights not expressly granted in , service , content. this means unless explicitly stated otherwise, may not download content posted on you...

i'm running error when attempt run pip install cryptography . on ubuntu 14.04 on digital ocean droplet. i'm following guide: https://stackoverflow.com/a/29099439/515509 (so please not suggest installing same packages listed in answer - because have done :). those packages are: python-dev , libffi-dev , libssl-dev . i've installed pyopenssl , ndg-httpsclient , pyasn1 . the error follows (warning - it's lot of text: root@name-of-the-system:~# pip install cryptography collecting cryptography using cached cryptography-1.5.2.tar.gz requirement satisfied (use --upgrade upgrade): idna>=2.0 in /usr/local/lib/python2.7/dist-packages (from cryptography) requirement satisfied (use --upgrade upgrade): pyasn1>=0.1.8 in /usr/local/lib/python2.7/dist-packages (from cryptography) requirement satisfied (use --upgrade upgrade): six>=1.4.1 in /usr/local/lib/python2.7/dist-packages (from cryptography) requirement satisfied (use --upgrade upgrade): setuptools...