How to do a clean reinstall of initramfs

Question

I was getting the error mentioned in this post on Ubuntu 10.04. I upgraded to Ubuntu 10.10 through software update and again I'm getting this error.

mount: mounts none on /dev/pts failed: Device

Here is the boot log:

IP-Config: no response after 4 secs - giving up
/scripts/init-premount/dropbear: line 32: ipconfig: not found
/scripts/init-premount/dropbear: line 32: ipconfig: not found
/scripts/init-premount/dropbear: line 32: ipconfig: not found
/scripts/init-premount/dropbear: line 32: ipconfig: not found
/scripts/init-premount/dropbear: line 32: ipconfig: not found
/scripts/init-premount/dropbear: line 32: ipconfig: not found
/scripts/init-premount/dropbear: line 32: ipconfig: not found
/scripts/init-premount/dropbear: .: line 32: can't open '/tmp/net-*.conf'
fsck from util-linux-ng 2.17.2

I had purged dropbear, and it looks like some scripts are still remaining. Is it possible to do a clean re-install of initramfs?

EDIT 1: sudo update-initramfs -u doesn't solve the issue. Also sudo update-initramfs -c -k all also doesn't solve the issue.

Answer 1

sudo update-initramfs -u

Simple as. Shouldn't be able to hurt anything.

On another note, you should ask whoever packages dropbear to add that to their postrm script.

Answer 2

With this problem, I did a complete removal of dropbear. It seems that the hooks into initramfs are left behind.

sudo apt-get remove --purge dropbear

sudo apt-get clean

(clean to remove log-files and other temp stuff)

Issue the

sudo update-initramfs -u

to ensure that the initramfs is reconfigured afterwards.

Answer 3

I was able to solve the dropbear issue.

I did the following:

1. I removed all dropbear related files by using the command: sudo find / -name dropbear* -exec rm -ri {} \;
2. Then I did sudo update-initramfs -c -k all
3. Now only this error remains mount: mounts none on /dev/pts failed: Device It looks like there is an obsolete mount entry created by dropbear in the config files which get executed in pre-init stages. If some one could figure out that config file, I would be able to solve the whole issue.