Timur Fayzrakhmanov's questions

I'm trying to select & edit these text:

pick e17a1b1 test 1
pick 37d4ccb test 2
pick c7ab952 test 3
pick 905617f test 4
pick 1c77d56 test 5
pick 1805ffa test 6

What I do:

1. ctrl + v (not V, because Ubuntu interprets it as paste action);
2. select all pick words;
3. shift + I;
4. start typing abc;
5. esc, esc ..;
6. from here is either nothing changes (if I type some different characters) or change the only first line.

What do I wrong?

UPDATE

I've tried vim-gnome and doing the same leads to the expected result!

I have a laptop connected to external monitor. Everything ok, but sometimes I need to check what's going on on external monitor (because I can't see them), hence two monitor should display the same output for a while. Are there any ways to do so?

I've installed Dart according to instructions from the official website (https://www.dartlang.org/tools/debian.html). To be more exactly:

$ sudo apt-get update
$ sudo apt-get install apt-transport-https
# Get the Google Linux package signing key.
$ sudo sh -c 'curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -'
# Set up the location of the stable repository.
$ sudo sh -c 'curl https://storage.googleapis.com/download.dartlang.org/linux/debian/dart_stable.list > /etc/apt/sources.list.d/dart_stable.list'
$ sudo apt-get update
$ sudo apt-get install dart

Installation was successful, but some time later I found that there is no other related commands like pub, dart2js.

pub: command not found
dart2js: command not found

What's wrong?

OS: Ubuntu 14.10

I'm trying to understand how to properly partitioning the disk for future Ubuntu installations.

The reason: after trying to install Windows 7 alongside Ubuntu, I enabled "Legacy mode" on my HP pavilon laptop's BIOS (I think it is EFI, but it looks like traditional BIOS). For now I've understand that is complicated task to use GPT and EFI on Windows 7. However at the moment it doesn't matter, because my Ubuntu doesn't start, at the startup EFI says that "no operation system have installed, please check the disk". I can successfully start Ubuntu by choosing "boot from EFI file" option and specifying boot file at startup.

Please see the screen shot below. This is how my disk looks like:

I've read these two very helpful topics: efi-boot-partition-and-biosgrub-partition and how-to-use-manual-partitioning-during-installation. But can't find analogical situation.

So the questions are: Can I install Ubuntu 14.10 with only 4 parts: "/", "/boot", "swap" and "/home"? What the partitions are odd here? (in the example above)

Please see the screenshot, I think it is quite self-explained ) I use [Alt] to type the base, I think "," must be subscript. However it doesn't look like..

What do I wrong?!

For the last week I fully reinstall Ubuntu about 4 times. I fed up of this - so I cry for help!

Whatever I tried nothing work: purge and reinstall ubuntu-desktop, nvidia-drivers, xorg-xserver and so and so on.

Please, see the screenshot for more information at the moment when Ubuntu freeze (while booting)

The last actions were to add ppa:xorg-edges and install the latest packages, but unfortunately it doesn't help - result the same as before - black screen. However for now messages appear immediately after freezing.

UPDATE: I don't know how to solve it and the answer is proposed I accepted only because there is no workaround ways.

After unsuccessful installation of the latest version of MariaDB through repository that is offered by official page (for Ubuntu 14.04) I've tried to install mariadb-5.5 which is already included in Ubuntu 14.10. However I get the following error:

Setting up mariadb-client (5.5.39-2) ...
dpkg: dependency problems prevent configuration of mariadb-server:
 mariadb-server depends on mariadb-server-5.5 (>= 5.5.39-2); however:
  Package mariadb-server-5.5 is not configured yet.

dpkg: error processing package mariadb-server (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                    Processing triggers for libc-bin (2.19-10ubuntu2) ...
Processing triggers for ureadahead (0.100.0-16) ...
Errors were encountered while processing:
 mariadb-server-5.5
 mariadb-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

But whatever I do nothing works. I've tried to solve my problems by:

• dpkg-invoke-rc-d-initscript-mysql-action-start-failed
• mariadb-server-depends-on-mariadb-server-5-5-5-5-39maria
• mysql-job-failed-to-start
• dpkg: error processing mysql-server (--configure)
• sudo apt-get purge mariadb* mysql*, rm /etc/mysql -R, rm /var/lib/mysql -R
• rm /* -R :-)
• sudo dpkg --configure -a
• sudo apt-get -f install

Nothing of listed above helps me. Please, I need a help!

My problem is known, but still remains unsolved. After installing the latest (or any other version) of Nvidia drivers I get black screen or am unable to login.

Useful information:

• nvidia-detector shows none,

• lspci shows:

  00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
  01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 630M] (rev a1)
  

• Ubuntu 14.04.1 x64

• linux kernel version is 3.13.0-37-generic
• Nvidia driver version is 340.46

I can switch (visually) between via nvidia-prime and Nvidia X Server Settings now, though before it was impossible due to different problems like this.

I've tried to install the latest drivers from official page, but get the same.

I faced with this message after reinstalling fglrx package. The reason of reinstalling fglrx was solve the problem with nvidia drivers (I tried some answers to solve black screen on system boot or freezing on login). The message below appears when I use apt-get command (remove, install etc). So how can I solve this problem?

Setting up fglrx (2:13.350.1-0ubuntu2) ...
update-alternatives: using /usr/lib/fglrx/ld.so.conf to provide /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf (x86_64-linux-gnu_gl_conf) in auto mode
update-alternatives: error: error creating symbolic link `/usr/lib/x86_64-linux-gnu/xorg/extra-modules.dpkg-tmp': No such file or directory
dpkg: error processing package fglrx (--configure):
 subprocess installed post-installation script returned error exit status 2
dpkg: dependency problems prevent configuration of fglrx-amdcccle:
 fglrx-amdcccle depends on fglrx; however:
  Package fglrx is not configured yet.

dpkg: error processing package fglrx-amdcccle (--configure):
 dependency problems - leaving unconfigured
Setting up nvidia-prime (0.6.2) ...No apport report written because the error message indicates its a followup error from a previous failure.

nvidia-prime start/running, process 3001
Processing triggers for ureadahead (0.100.0-16) ...
Errors were encountered while processing:
 fglrx
 fglrx-amdcccle
E: Sub-process /usr/bin/dpkg returned an error code (1)

I'm trying to install Ubuntu SDK, but get the same problem like here (first, second). The promoted solution like this doesn't help me either (

The following packages have unmet dependencies:
 ubuntu-sdk : Depends: ubuntu-sdk-libs-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Ok, I will find the solution if I need, but I more annoyed by the fact that why does it happen? I can't understand where does the problem begin? Does somebody test their software on "easy 3 steps installation"?

It was a lyrical digression..My second question is how can I use just Qt Creator (not Ubuntu SDK which is built on top of them) to create the same Ubuntu Apps?

Output for @g_p:

The following packages have unmet dependencies:
ubuntu-sdk-libs-dev : Depends: libqt5webkit5-dev but it is not going to be installed
                   Depends: libqt5xmlpatterns5-dev but it is not going to be installed
                   Depends: qt3d5-dev but it is not going to be installed
                   Depends: qt5-default but it is not going to be installed
                   Depends: qtbase5-dev but it is not going to be installed
                   Depends: qtdeclarative5-dev but it is not going to be installed
                   Depends: qtlocation5-dev but it is not going to be installed
                   Depends: qtmultimedia5-dev but it is not going to be installed
                   Depends: qtscript5-dev but it is not going to be installed
                   Depends: qtsensors5-dev but it is not going to be installed
                   Depends: qttools5-dev but it is not going to be installed

Hello I have installed Ubuntu 14.04.1 and I have no more patience to struggle with my problem. I can't install ubuntu-sdk package:

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
ubuntu-sdk : Depends: ubuntu-sdk-libs-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I really is unable to solve this problem (unfortunately, solutions listed here don't help me). After my researching I understand that the next generation of Ubuntu apps will use QML language and therefore I need Qt compilers and IDE. The next step was install not Ubuntu-sdk (created on top of Qt Creator), but just Qt Creator. Thank God I installed Qt Creator from official site without any problems. But now I don't know how to use it in creating Ubuntu apps (generally speaking, I'm newbie in creating apps)

So my next step was to install ubuntu-emulator to see how Ubuntu Touch looks like at least. After emulator installation and instance creation I get the following:

A little excerption from terminal:

[    3.332876] EXT4-fs (mmcblk0): couldn't mount as ext3 due to feature incompatibilities
[    3.352482] EXT4-fs (mmcblk0): couldn't mount as ext2 due to feature incompatibilities
                                                                            [    3.396557] EXT4-fs (mmcblk0): mounted filesystem with ordered data mode. Opts: discard
                                                                                                            [    3.437316] initrd: boot mode: normal
                                                                                                                           [    3.510130] EXT4-fs (loop0): couldn't mount as ext3 due to feature incompatibilities
[    3.522541] EXT4-fs (loop0): couldn't mount as ext2 due to feature incompatibilities
                                                                                                                                                                                                        [    3.688075] EXT4-fs (loop0): mounted filesystem with ordered data mode. Opts: (null)
[    3.691622] initrd: mounting system.img (image developer mode)
[    3.822189] EXT4-fs (loop1): couldn't mount as ext3 due to feature incompatibilities
[    3.844501] EXT4-fs (loop1): couldn't mount as ext2 due to feature incompatibilities
                                                                             [    3.956694] EXT4-fs (loop1): mounted filesystem with ordered data mode. Opts: (null)
[    4.106987] initrd: device is generic_x86
               [    5.341856] Clocksource tsc unstable (delta = 820035903 ns)
[   12.067393] initrd: checking fstab /root/var/lib/lxc/android/rootfs/fstab* for additional mount points
                                                                       [   12.328245] initrd: checking mount label mtdblock2
                                                                                      [   12.374596] initrd: mounting /dev/mtdblock2 as /root/android//cache
mount: mounting /dev/mtdblock2 on /root/android//cache failed: Invalid argument
[   12.406983] initrd: mounting /root/var/lib/lxc/android/system.img as /root/android/system
                                                                                                                                                                                                                                                                            Begin: Running /scripts/local-bottom ... done.
done.
Begin: Running /scripts/init-bottom ... done.
[   16.495823] init: ureadahead-touch main process (448) terminated with status 5
[   53.042745] init: /dev/hw_random not found
               [   53.044612] init: cannot open '/initlogo.rle'
[   53.188136] init: /dev/hw_random not found
               [   54.943603] init: cannot find '/system/etc/install-recovery.sh', disabling 'flash_recovery'
[   54.943943] init: cannot find '/system/bin/ubuntuappmanager.disabled', disabling 'ubuntuappmanager'
[   55.031468] init: property 'sys.powerctl' doesn't exist while expanding '${sys.powerctl}'
[   55.031579] init: powerctl: cannot expand '${sys.powerctl}'
[   55.031664] init: property 'sys.sysctl.extra_free_kbytes' doesn't exist while expanding '${sys.sysctl.extra_free_kbytes}'
[   55.031735] init: cannot expand '${sys.sysctl.extra_free_kbytes}' while writing to '/proc/sys/vm/extra_free_kbytes'
[   55.083456] init: cannot find '/sbin/adbd', disabling 'adbd'
[   55.094205] init: cannot find '/sbin/adbd', disabling 'adbd'
[  166.218726] systemd-logind[1013]: Failed to start unit [email protected]: Unknown unit: [email protected]
                                                                                                      [  166.219137] systemd-logind[1013]: Failed to start user service: Unknown unit: [email protected]
                                                                                                                                                                                                 * Setting up X socket directories...                                [ OK ]
[  168.769983] systemd-logind[1013]: Failed to start unit [email protected]: Unknown unit: [email protected]
                                                                                              [  168.771611] systemd-logind[1013]: Failed to start user service: Unknown unit: [email protected]
                                                                                                                                                                                     * Starting automatic crash report generation: apport                [ OK ]
                                                                                                                                                                                     emulator: User configuration saved to /home/timur/.android/emulator-user.ini

The emulator is very slow (I work on my HP laptop) and buggy. I assume that the reason of buggy view is in video drivers and may be something relating with OpenGL, I don't know... I will create an additional question regarding this issue

I want to ssh or bash into a running docker container. Please, see example:

$ sudo docker run -d webserver
webserver is clean image from ubuntu:14.04
$ sudo docker ps
CONTAINER ID  IMAGE            COMMAND    CREATED STATUS  PORTS          NAMES
665b4a1e17b6  webserver:latest /bin/bash  ...     ...     22/tcp, 80/tcp loving_heisenberg 

Now I want to get something like this (go into the running container):

$ sudo docker run -t -i webserver (or maybe 665b4a1e17b6 instead)
$ root@665b4a1e17b6:/#

However when I run the line above I get new CONTAINER ID:

$ root@42f1e37bd0e5:/#

I used Vagrant and I'd like to get a similar behaviour as vagrant ssh.

Sorry for the language mistakes I've made. I'm trying to prevent vagrant asking the password when it mounts shared folders by NFS:

 [server] Exporting NFS shared folders...
 Preparing to edit /etc/exports. Administrator privileges will be required...
 [sudo] password for timur: #!!!

I've red many online resources like github and other author's posts, but nothing work for me...

I tried the instructions was found here. I don't have deep cli working knowledge. So could anybody give correct solution for my problem?

may be it seems strange for you, but I want to run command in a specific folder without changing the current folder in the shell. Example - this is what I usually do:

~$ cd .folder
~/.folder$ command --key
~/.folder$ cd ..
~$ another_command --key

Though I want something like this:

~$ .folder command --key
~$ another_command --key

Is it possible?

I'm trying to create alias for my local website which is runned by vagrant(virtual box), hence I want redirect any requests from site.ru to 192.168.10.10/site.ru via /etc/hosts file. In the hosts file I have the following:

...
192.168.10.10/site.ru    site.ru

However it doesn't work as I want. When I go to site.ru I'm appear in the 'real' site. I hope anybody understand me to answer for my question..

What did I do wrong?

UPDATE: Solution: How to setup mass dynamic virtual hosts in nginx?

I'm trying to find out how to run a command in the background and then bring it to the foreground later. I'm fed up of tutorials and answers where people state that it's simple, just append & to the end of the command to get it run in the background. It's working only within a single terminal window. I want to put the command into the background in one terminal and get it back to foreground after reopening the terminal

Example:

$ grunt &
$ jobs
$ [1]+  Running  grunt &

Of course after closing terminal no one job is found.

Next example:

$ grunt & disown #the same behavior has: $ setsid grunt &
$ jobs
$ [nothing] #but ps shows that grunt is working

after close terminal, grunt doesn't work

What did I do wrong? Could anybody explain me how to run the command in the background and get it back to foreground.

I need some basics about SSH, to help me understand the process of SSH connecting.

I have Ubuntu server on my virtualbox and Ubuntu desktop on my host. I've established connection with my VM by adding id_rsa.pub to authorized_keys on the remote (added by ssh-copy-id). id_rsa.pub is generated by ssh-keygen as well as id_rsa.

I successfully connect to my remote without typing the password, but I don't understand when exactly and why need the file id_rsa which is stored along to id_rsa.pub?

I tried to delete this private key, but in spite of this the connection still works! In my mind, this file doesn't need to establish connection with my VM.

Sorry for the mistakes I've made.

I'm trying to connect through ssh to my host machine (Ubuntu 13.10) from guest machine (Ubuntu Server 13.10) which has bridged adapter. Vice versa everything ok - I connect to guest just by typing ssh user@dhcp-ip, but when I try to connect conversely I get the following:

connect to host 192.168.0.x port 22: No route to host.

IP on host machine is taken from the ifconfig from eth0.

Recently, I've checked up that port 22 is listened by ssh server daemon on the host machine. What I do wrong?

In some manuals online I see numbers in parentheses following the commands, like (sshd(8), ssh_config(5), etc.). What does this mean, and why is it important to indicate/show the number?

I'm sorry for the mistakes I've made, I'm not Englishman.

I have Ubuntu 13.10 and Virtualbox installed Ubuntu Server 13.10 (Bridged Adapter). Guest machine has nginx, mariaDB, php etc. - hence web server. So at the host machine I successfully connect to vm server through browser and everything works ok. Now I want to set up ssh connection between guest and host. How can I implement it?

I think something tie with port forwarding and network type on guest, but I don't have enough knowledge to understand what I do wrong. Googling direct me to host-only network type on guest machine and configuring its IP to static instead of DHCP. Please, help)