Juan Simón's questions

I have upgraded to Ubuntu 13.04 a few days ago.
With Ubuntu 12.10 I had set the default terminal with:

gsettings set org.gnome.desktop.default-applications.terminal exec /usr/bin/terminator
gsettings set org.gnome.desktop.default-applications.terminal exec-arg "-x"

I had set it with sudo update-alternatives --config x-terminal-emulator too.

But none of these options work on Ubuntu 13.04.

How can I set Terminator as default terminal emulator with nautilus "open terminal"?

This isn't a duplicate. As I've said: the solutions in How can I set default terminal used in Unity? doesn't work on Ubuntu 13.04 with nautilus "open terminal".
My question is: "Set Terminator as default terminal emulator WITH NAUTILUS "OPEN TERMINAL" on Ubuntu 13.04"

Ubuntu 12.10 64 bits with Unity.
When I restart or shutdown the PC, it takes too long to do it.
It shows the line Asking all remaining processes to terminate... [fail] and after Killing all remaining processes.
How can I debug this to determine the origin of the problem?

Ubuntu 12.10 64 bits
Gnome-shell 3.6.2
Nautilus 3.6.3

I have installed SMPlayer. It has a useful (to me) option called "Add folder content to SMPlayer playlist" (or something like that, my native language is spanish). But Nautilus 3.6.3 doesn't show this option for folders. Has this option gone?

• Gnome Shell 3.6.2
• Ubuntu 12.10 64 bit

/org/gnome/gnome-panel/layout/toplevels/bottom-panel has several options theoretically to customize the behavior of Gnome panels.

I tried to set that the bottom bar is showed faster and that it is automatically hidden. For this I changed the settings as shown below in the screenshot:

I restarted the Gnome environment with Alt+F2+R, but it doesn't work.

I have installed Ubuntu 12.04 and Thunderbird 12.0.1 from scratch but I hear no sound when new mail arrives.

I have installed pulseaudio-esound-compat and esound-common but the problem persist.

How can I fix this, and get new mail notification sounds in Thunderbird?

Bug reported here: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1009108

I use Ubuntu 11.10 64 bits with Gnome Shell.
I have opened a bug because sometimes "Close session" and "Shutdown" buttons doesn't work. gnome-session-quit only works sometimes: bug

How can I close the session cleanly from console without gnome-session-quit?

I have written several upstart scripts to start transmission-daemon for several users. The script is this:

start on (local-filesystems and net-device-up IFACE=eth0 and runlevel [235])
stop on runlevel [016]

kill timeout 50

respawn

env USER=user
env PIDFILE=/var/run/transmission-user.pid

script
    DAEMON=$(which transmission-daemon) || exit 0
    CONFIGDIR=/home/$USER/.config/transmission-daemon

    exec start-stop-daemon --start --quiet --chuid $USER --pidfile $PIDFILE --make-pidfile --exec $DAEMON -- -f --config-dir $CONFIGDIR --logfile $CONFIGDIR/daemon.log
end script

post-stop exec rm -f $PIDFILE

I would convert this:

env USER=user
env PIDFILE=/var/run/transmission-user.pid

To this:

env USER=user
env PIDFILE=/var/run/transmission-$USER.pid

But upstart doesn't allow. I can do it if I move those lines to the script section:

script
    USER=user
    PIDFILE=/var/run/transmission-$USER.pid
    ...
end script

But in this case, the PIDFILE, in post-stop section, is empty.
Is there any way to do this?

I have defined a PS1 prompt multi-line in my server with Ubuntu 11.04.
The problem occurs when I write a long command, the line cuts before the end of terminal and it continues at beginning the same line:

But if I continue writing the line ends at the end of window and it continues in next line, as expected:

And if I press Home key the cursor goes to the line above the first line.

I connect to server with SSH in a gnome-terminal.

The PS1 line in /etc/bash.bashrc is:

[ $UID -eq "0" ] && PS1="\e[31m┏━\e[42m┅◉ \e[37m\d ⌚ \t \e[31m┅\e[0m\e[31m━━\e[42m┅◈ \e[37m\H \e[0m\n\e[31m┣\e[0m \w (\e[36m\$(ls -1 | wc -l) fichero/s\e[0m) \n\e[31m┗\e[45m┅◉\e[1;37m \u \e[0m\e[31m━► " || PS1="┏━\e[44m┅◉ \e[37m\d ⌚ \t ┅\e[0m━━\e[44m┅◈ \e[37m \e[0m\n┣━━\e[42m┅◉ kernel: \e[37m$(uname -r) ┅\e[0m━━\e[42m┅◈ uptime: \e[37m$(date -d "`cut -f1 -d. /proc/uptime` seconds ago" +"%a %d %b %R") \e[0m\n┣ \w (\e[36m\$(ls -1 | wc -l) fichero/s\e[0m) \n┗\e[46m┅◉\e[1;37m \u \e[0m━► "

Some of the environment variables:

$ env
TERM=xterm
SHELL=/bin/bash
SSH_TTY=/dev/pts/0
LC_ALL=
LC_MESSAGES=POSIX
LC_COLLATE=C
LANG=es_ES.UTF-8
HISTCONTROL=ignoreboth
SHLVL=1
LESS=-Rsw
LESSOPEN=| /usr/bin/lesspipe %s
LESSCLOSE=/usr/bin/lesspipe %s %s
_=/usr/bin/env

Any idea?

Is there any way to prevent temporally suspend/hibernate from a script?

I want the screen to enter in powersave mode when appropriate, but the computer doesn't stop. Caffeine doesn't allow this: it disables all or nothing.

Why I want to do this? Because sometimes I download huge amount of files from a server via FTP. These downloads can take hours to complete.

I've installed Gentoo in one of my hard disks. The whole hard disk is for that distro.
I want a dual-boot in grub to start Ubuntu or Gentoo.

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        7298    58614752+  83  Linux

/dev/sdf1               1         125     1000000   82  Linux swap / Solaris
Partition 1 does not end on cylinder boundary.
/dev/sdf2             125       30402   243196503+  83  Linux
Partition 2 does not end on cylinder boundary.

/dev/sdb is Ubuntu root and /dev/sdf is Gentoo.
I execute sudo os-prober and it shows:

/dev/sdf2:Gentoo Base System release 2.0.2:Gentoo:linux

Then I execute sudo update-grub:

Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.0.0-6-core2
Found initrd image: /boot/initrd.img-3.0.0-6-core2
Found linux image: /boot/vmlinuz-3.0-3-core2
Found initrd image: /boot/initrd.img-3.0-3-core2
Found memtest86+ image: /boot/memtest86+.bin
Found Gentoo Base System release 2.0.2 on /dev/sdf2
done

But when I restart, grub menu doesn't show the Gentoo entry.

I didn't set the boot flag in Gentoo disk, is this the problem? The disk boot is the Ubuntu disk, not Gentoo.

My actual /boot/grub/grub.cfg

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
set default="${saved_entry}"
if [ ${prev_saved_entry} ]; then
  set saved_entry=${prev_saved_entry}
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z ${boot_once} ]; then
    saved_entry=${chosen}
    save_env saved_entry
  fi
}

function recordfail {
  set recordfail=1
  if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set ae2f99e4-5e5d-480d-abce-e66478f0c72f
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=1280x1024
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set ae2f99e4-5e5d-480d-abce-e66478f0c72f
set locale_dir=($root)/boot/grub/locale
set lang=es
insmod gettext
if [ ${recordfail} = 1 ]; then
  set timeout=-1
else
  set timeout=4
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, con Linux 3.0.0-6-core2' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd1,1)'
    search --no-floppy --fs-uuid --set ae2f99e4-5e5d-480d-abce-e66478f0c72f
    linux   /boot/vmlinuz-3.0.0-6-core2 root=UUID=ae2f99e4-5e5d-480d-abce-e66478f0c72f ro   crashkernel=384M-2G:64M,2G-:128M quiet splash nomodeset video=uvesafb:mode_option=1280x1024-16,mtrr=3,scroll=ywrap acpi_osi=Linux
    initrd  /boot/initrd.img-3.0.0-6-core2
}
menuentry 'Ubuntu, con Linux 3.0.0-6-core2 (modo recuperación)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd1,1)'
    search --no-floppy --fs-uuid --set ae2f99e4-5e5d-480d-abce-e66478f0c72f
    echo    'Cargando Linux 3.0.0-6-core2 ...'
    linux   /boot/vmlinuz-3.0.0-6-core2 root=UUID=ae2f99e4-5e5d-480d-abce-e66478f0c72f ro single 
    echo    'Cargando el disco RAM inicial...'
    initrd  /boot/initrd.img-3.0.0-6-core2
}
menuentry 'Ubuntu, con Linux 3.0-3-core2' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd1,1)'
    search --no-floppy --fs-uuid --set ae2f99e4-5e5d-480d-abce-e66478f0c72f
    linux   /boot/vmlinuz-3.0-3-core2 root=UUID=ae2f99e4-5e5d-480d-abce-e66478f0c72f ro   crashkernel=384M-2G:64M,2G-:128M quiet splash nomodeset video=uvesafb:mode_option=1280x1024-16,mtrr=3,scroll=ywrap acpi_osi=Linux
    initrd  /boot/initrd.img-3.0-3-core2
}
menuentry 'Ubuntu, con Linux 3.0-3-core2 (modo recuperación)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd1,1)'
    search --no-floppy --fs-uuid --set ae2f99e4-5e5d-480d-abce-e66478f0c72f
    echo    'Cargando Linux 3.0-3-core2 ...'
    linux   /boot/vmlinuz-3.0-3-core2 root=UUID=ae2f99e4-5e5d-480d-abce-e66478f0c72f ro single 
    echo    'Cargando el disco RAM inicial...'
    initrd  /boot/initrd.img-3.0-3-core2
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

I have done a script to start transmission-daemon as a normal user:

start on filesystem
stop on runlevel [!2345]

respawn
respawn limit 10 5

pre-start script
    test -x /usr/bin/transmission-daemon || { stop; exit 0; }
    test -d /home/user/.config/transmission-daemon || { stop; exit 0; }
end script

exec su -l -c 'transmission-daemon --foreground --config-dir /home/user/.config/transmission-daemon --logfile /home/user/.config/transmission-daemon/daemon.log' user

This script works but I see two processes in execution of transmission-daemon:

user     5041  0.0  0.0  48556  1516 ?        Ss   01:10   0:00 su -l -c transmission-daemon --foreground --config-dir /home/user/.config/transmission-daemon --logfile /home/user/.config/transmission-daemon/daemon.log user
user     5048  0.5  0.0 150432  2960 ?        Sl   01:10   0:00 transmission-daemon --foreground --config-dir /home/user/.config/transmission-daemon --logfile /home/user/.config/transmission-daemon/daemon.log

Is this correct? Is there another way to execute this better?

Note: The default startup script of transmission package is disabled.

More info:

If I execute transmission as a daemon (without foreground) the problem is the detected PID by init:

start on filesystem
stop on runlevel [!2345]

expect fork

pre-start script
    test -x /usr/local/bin/transmission-daemon || { stop; exit 0; }
    test -d /home/mario/.config/transmission-daemon || { stop; exit 0; }
end script

exec sudo -u user transmission-daemon --config-dir /home/user/.config/transmission-daemon --logfile /home/user/.config/transmission-daemon/daemon.log

.

$ sudo initctl list | grep trans
trans-test start/running, process 3110

but really this is the PID of sudo (finished process), the transmission-daemon PID is another:

$ ps aux 
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
user     3148  0.0  0.0 154848  2708 ?        Ssl  13:33   0:00 transmission-daemon 

I have installed dnscache (dnscache-run) from Ubuntu repositories and I have increased the CACHESIZE and DATALIMIT to 256MB (268435456).
Today I have tested it with one domain: google.es.
I have executed in console dig google.es:

;; Query time: 86 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)

I have repeated the query:

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)

Correct.
After I have visited various websites with Firefox for at least 10 minutes and I've repeated the query:

;; Query time: 87 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)

In 10 minutes of Internet surfing has it had to empty a cache of 256MB!? Furthermore, in those 10 minutes I've done several searches on google.es.
Based on these results so disappointing my question is obvious: Does dnsache really improve the surfing speed? Maybe something is wrong with my settings?

I've read some wikis and pages about TCP congestion avoidance algorithm but I don't sure about the response to this question: What's the best TCP congestion avoidance algorithm to an ADSL2+ connection? Actually I use CUBIC, is it the best option?

Ubuntu 10.04

I have created this upstart script (/etc/init/pure-ftpd.conf):

# pure-ftpd - FTP server

description "Pure-FTPd server"

start on filesystem
stop on runlevel S

respawn
respawn limit 10 5
pid file /var/run/pure-ftpd.pid
console output

pre-start script
    test -x /usr/local/sbin/pure-ftpd || { stop; exit 0; }
end script

exec /usr/local/sbin/pure-ftpd --maxclientsnumber 2 --maxclientsperip 10 --prohibitdotfileswrite --prohibitdotfilesread --noanonymous --chrooteveryone --dontresolve --nochmod --pidfile /var/run/pure-ftpd.pid

But...

# start pure-ftpd
start: Unknown job: pure-ftpd

and

# service pure-ftpd start
start: Unknown job: pure-ftpd

What's the problem?
Is it necessary to do something more?
Is it necessary to create one script in /etc/init.d too?

I compile/create my own deb packages of kernel with:

make-kpkg --rootcmd fakeroot --initrd --append-to-version=$version --revision=1 kernel_image kernel_headers

But when I install both packages, in /lib/modules/(*name_kernel_compiled*) it creates two links, sources and build, pointing to folder with sources, from I've compiled.

sources link is correct but build should point to /usr/src/linux-(version kernel), don't you think?

I have defined

export MAKEOPTS="-j4"

in my ~/.profile file.

But when I do a compilation with make, this option is ignored.
I've consulted the GNU Make manual but it says nothing about this variable. Is it standard or only it works in certain distros?

Does "CONCURRENCY_LEVEL=x" variable affects to compilations made with make?

I have downloaded the kernel 2.6.37 from kernel.org. I have tried to compile it but I get an error:

$ make menuconfig
scripts/kconfig/conf --silentoldconfig Kconfig
***
*** Configuration file ".config" not found!
***
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").
***
make[2]: *** [silentoldconfig] Error 1
make[1]: *** [silentoldconfig] Error 2
make: *** No rule to make target `include/config/auto.conf', needed by `include/config/kernel.release'. Stop.

I have copied the actual kernel configuration to .config:

cp /boot/config-2.6.37-20110117 .config

I have executed make menuconfig another time but it compiles the full kernel without showing a menu. o_O I have compiled this kernel a few days without problems.

Any help? Thanks.

I have two problems with GDM on Ubuntu 10.04.

The first is with locales. In my system I have defined:

$ cat /etc/environment 
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
LANG="es_ES.UTF-8"
LANGUAGE="es_ES:es:en_US:en"

$ cat /etc/default/locale 
LANG="es_ES.UTF-8"
LANGUAGE="es_ES:es:en_US:en"

$ cat /var/lib/locales/supported.d/local 
es_ES UTF-8
es_ES.UTF-8 UTF-8
en_US UTF-8
en_US.UTF-8 UTF-8

But when I enter in gnome desktop:

$ locale
LANG=es_ES
LANGUAGE=es_ES:es:en_US:en
LC_CTYPE="es_ES"
LC_NUMERIC="es_ES"
LC_TIME="es_ES"
LC_COLLATE="es_ES"
LC_MONETARY="es_ES"
LC_MESSAGES="es_ES"
LC_PAPER="es_ES"
LC_NAME="es_ES"
LC_ADDRESS="es_ES"
LC_TELEPHONE="es_ES"
LC_MEASUREMENT="es_ES"
LC_IDENTIFICATION="es_ES"
LC_ALL=

I have deleted ~/.dmrc and I have restarted the system but nothing.
GDM login screen also doesn't permit change this setting.

However, in the text terminals (tty1,...):

$ locale
LANG=es_ES.UTF-8
LANGUAGE=es_ES:es:en_US:en
LC_CTYPE="es_ES.UTF-8"
LC_NUMERIC="es_ES.UTF-8"
LC_TIME="es_ES.UTF-8"
LC_COLLATE="es_ES.UTF-8"
LC_MONETARY="es_ES.UTF-8"
LC_MESSAGES="es_ES.UTF-8"
LC_PAPER="es_ES.UTF-8"
LC_NAME="es_ES.UTF-8"
LC_ADDRESS="es_ES.UTF-8"
LC_TELEPHONE="es_ES.UTF-8"
LC_MEASUREMENT="es_ES.UTF-8"
LC_IDENTIFICATION="es_ES.UTF-8"
LC_ALL=

The solution to problem is to edit .drmc file, but I think this isn't the right way.

Why doesn't GDM read/apply the system locales?
Why don't I see, in GDM login screen, the box to change the locale?

Every certain amount of time, Ubuntu checks my filesystems and it creates several empty "lost+found" folders.

Can I disable this feature? Is there any way that Ubuntu deletes automatically these folders if they are empty?

Is there any manner to hide this folder on NFS?