Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am running 64-bit Ubuntu 13.04. I tried to install cairo-dock as follows:

  1. sudo add-apt-repository ppa:cairo-dock-team/ppa -- went well, no errors.

  2. sudo apt-get update -- went well, no errors.

  3. sudo apt-get install cairo-dock cairo-dock-plug-ins -- error

This is the console output:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
  cairo-dock-core cairo-dock-data cairo-dock-plug-ins-data
  cairo-dock-plug-ins-dbus-interface-python cairo-dock-plug-ins-integration
  compiz-plugins curl libetpan15 libgldi3
Suggested packages:
  cairo-dock-plug-ins-dbus-interface-vala gnote
The following NEW packages will be installed:
  cairo-dock cairo-dock-core cairo-dock-data cairo-dock-plug-ins
  cairo-dock-plug-ins-data cairo-dock-plug-ins-dbus-interface-python
  cairo-dock-plug-ins-integration compiz-plugins curl libetpan15 libgldi3
0 upgraded, 11 newly installed, 0 to remove and 0 not upgraded.
Need to get 10.3 MB of archives.
After this operation, 26.7 MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 **link** raring/universe cairo-dock-data all 3.2.1-0ubuntu1 [468 kB]
Get:2 **link** raring/universe libgldi3 amd64 3.2.1-0ubuntu1 [352 kB]
Get:3 **link** raring/universe cairo-dock-core amd64 3.2.1-0ubuntu1 [1,125 kB]
Get:4 **link** raring/universe cairo-dock-plug-ins-data all 3.2.1-0ubuntu1 [4,190 kB]
Get:5 **link** raring-updates/main curl amd64 7.29.0-1ubuntu3.1 [149 kB]
Get:6 **link** raring/universe libetpan15 amd64 1.0-5 [286 kB]
Get:7 **link** raring/universe cairo-dock-plug-ins amd64 3.2.1-0ubuntu1 [871 kB]
Get:8 **link** raring/universe cairo-dock-plug-ins-integration amd64 3.2.1-0ubuntu1 [59.9 kB]
Get:9 **link** raring/universe cairo-dock-plug-ins-dbus-interface-python all 3.2.1-0ubuntu1 [16.0 kB]
Get:10 **link** raring/universe cairo-dock all 3.2.1-0ubuntu1 [8,738 B]
Get:11 **link** raring-updates/universe compiz-plugins amd64 1:0.9.9~daily13.06.19~13.04-0ubuntu1 [2,764 kB]
Fetched 10.3 MB in 2min 1s (84.8 kB/s)                                         
Selecting previously unselected package cairo-dock-data.
**dpkg: unrecoverable fatal error, aborting:
 reading files list for package 'linux-headers-3.8.0-19': Input/output error
E: Sub-process /usr/bin/dpkg returned an error code (2)**

The install gets stuck on the dpkg line. This error occurs every time I try to install a program using apt-get install.

share|improve this question

migrated from Sep 3 '13 at 18:03

This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.

Can you please show us exactly the steps you follow to install a package? Feel free to include as much info as you can, even something that won't feel relevant, so we can help you. – rahmu Aug 30 '13 at 11:28
@rahmu I already added the full details of the process in the terminal.. – dreamsR4real Aug 31 '13 at 1:27
"Input/output error" <-- your disk or filesystem is having problems. Please consult your system log (/var/log/syslog) for some more clues on this. It is likely that your disk is failing or that it is encountering severe filesystem errors. – gertvdijk Sep 3 '13 at 18:19
how to find clues in syslog? what to look for? – dreamsR4real Sep 5 '13 at 2:07

In your case, you i guess three state:

  1. your linux-headers-3.8.0-19 deb file was damaged.(in your case you should re-install it.)
  2. you should play with apt systems after upgrade with dpkg -a --configure then apt-get -f dist-upgrade or your task, may be : apt-get -f install

  3. your deb package, have a bug in postinst, if it state will be true, you can handle in /var/lib/dpkg/info/linux-headers-3.8.0-19-686-pae.postinst ,

share|improve this answer
how to reinstall linux-headers-3.8.0-19 deb file? cause I cant install anything using apt-get.. the E: Sub-process /usr/bin/dpkg returned an error code (2) always shows up if I try to install anything.. – dreamsR4real Aug 30 '13 at 4:36
on your 3rd state.. it seems I don't have that dir bash: /var/lib/dpkg/info/linux-headers-3.8.0-19-686-pae.postinst: No such file or directory – dreamsR4real Aug 30 '13 at 4:37
rm /var/cache/apt/archives/linux-headers-3.8.0-19*; apt-get --reinstall install linux-headers-3.8.0-19 – PersianGulf Aug 30 '13 at 4:42
i look up the dir but it says it does not exists.. do i have a different path for it? – dreamsR4real Aug 30 '13 at 4:46
directory is true, it's default dir on debian-base for temp deb files, may be you don't have named file. – PersianGulf Aug 30 '13 at 4:56

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.