View Full Version : [all variants] new kernel vsn caused dkms failure, depmod error

September 22nd, 2012, 12:41 PM
Did a clean install of Kubuntu 12.04 two days ago.
This evening it said there were available updates, namely kernel version 3.2.0-31. In more detail:

The following NEW packages will be installed:
linux-headers-3.2.0-31{a} [3.2.0-31.50] linux-headers-3.2.0-31-generic{a} [3.2.0-31.50]
linux-image-3.2.0-31-generic{a} [3.2.0-31.50]
The following packages will be upgraded:
linux-generic [ ->] linux-headers-generic [ ->]
linux-image-generic [ ->] linux-libc-dev [3.2.0-30.48 -> 3.2.0-31.50]
The following packages are SUGGESTED but will NOT be installed:
fdutils linux-source-3.2.0 linux-tools
4 packages upgraded, 3 newly installed, 0 to remove and 0 not upgraded.I did the update via

sudo aptitude -v -V safe-upgradeand received the error:

run-parts: executing /etc/kernel/postinst.d/dkms 3.2.0-31-generic /boot/vmlinuz-3.2.0-31-generic
Error! Problems with depmod detected. Automatically uninstalling this module.
DKMS: Install Failed (depmod problems). Module rolled back to built state.The full output is attached to this post.

Being worried, before rebooting I did

sudo apt-get install -f
sudo apt-get clean
sudo apt-get update
sudo apt-get install --reinstall linux-headers-3.2.0-31 linux-headers-3.2.0-31-generic linux-image-3.2.0-31-genericI then rebooted and system seems to be fine for the moment.

However i am quite worried that there is something wrong deep in the system and it wil eventually show up. What is the cause of this and what does it mean?

[this machine is a Dell Precision 670 with Nvidia Quadro FX 1400 graphics card, running NVidia drivers. I am testing 12.04 so not too much else installed on it yet.]

September 22nd, 2012, 07:26 PM
I had similar problems, Firefox had stated that it couldn't start, so I rebooted, not realizing this had happened. Now the system doesn't boot. Any thoughts on recovery?

September 23rd, 2012, 03:59 AM
The problem in this thread is that the new kernel vsn caused dkms install failure, due to a depmod error.
a. the problem is with is with 12.04 only
b. the system does boot
c. and firefox is not part of the problem.

Did you have the error:
DKMS: Install Failed (depmod problems) ?
if not, it is not a similar problem.

August 24th, 2013, 04:09 PM
Here's my sequence of events. ubuntu 12.04 vm running on 12.04 host (both 64-bit).

Got the "Not all upgrades can be installed message."


sudo apt-get update
sudo apt-get upgrade sudo apt-get install linux-generic linux-headers-generic linux-image-generic

Got the Error! Problems with depmod blah blah messages as described above.

Not knowing if this was going to cause problems on reboot, I researched and came across this thread.

Followed the steps above to fix/clean/update/reinstall (mine was kernal)--no depmod errors.

Rebooted and all is well.

August 26th, 2013, 08:48 AM
As it was for me. Have now been using 12.04 for a year and 4 days.