Is it safe to remove old kernels ?

[chudak]

Just to make sure if I use the command line

dpkg -l | grep '^rc'| awk '{print $2}' | xargs sudo apt purge -y

is it safe to remove old kernels ?

I see now this list:

root@pve:~# dpkg -l | grep '^rc'| awk '{print $2}' pve-kernel-5.4.101-1-pve pve-kernel-5.4.60-1-pve pve-kernel-5.4.65-1-pve pve-kernel-5.4.73-1-pve pve-kernel-5.4.78-1-pve pve-kernel-5.4.78-2-pve pve-kernel-5.4.98-1-pve python

 

[RokaKen]

Yes, but a simple apt autoremove is the preferred method.

 

[chudak]

Yes, but a simple apt autoremove is the preferred method.

See below:

root@pve:~# apt autoremove Reading package lists... Done Building dependency tree... Done Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. root@pve:~# dpkg -l | grep '^rc'| awk '{print $2}' bsdmainutils pve-kernel-5.4.101-1-pve pve-kernel-5.4.103-1-pve pve-kernel-5.4.106-1-pve pve-kernel-5.4.114-1-pve pve-kernel-5.4.119-1-pve pve-kernel-5.4.60-1-pve pve-kernel-5.4.65-1-pve pve-kernel-5.4.73-1-pve pve-kernel-5.4.78-1-pve pve-kernel-5.4.78-2-pve pve-kernel-5.4.98-1-pve python

apt autoremove does not seem doing the same as other command !

 

[Dunuin]

If I remember right the pve package will prevent autoremove from removing the X latest kernels. But that is a wanted feature and not a bug because you might encounter problems and PVE isn't booting anymore. Then you can still boot from an older kernel already installed.

 

[RokaKen]

See below:


apt autoremove does not seem doing the same as other command !

Sorry, yes, that is correct. Technically, the kernels are already "removed" (the "r" in the dpkg status), but some local configuration remains (the "c" in the dpkg status). Therefore, it will be necessary to use apt purge to git rid of that.

 

[ph0x]

ls -l /boot seems to be a more reliable way of finding installed kernels.

 

[TheRealMaN_]

What if

ls -l /boot

Shows that there are some old kernels, but

apt autoremove

doesn't remove them?

 

[fabian]

then you can remove them manually.

 

[donhwyo]

apt remove pve-kernel-5.4.101-1-pve (add others) --purge

Should remove the "rc" rmnants.