On Sat, Jul 03, 2021 at 06:49:35PM +0100, mick crane wrote: > root@pumpkin:/boot# df -h /boot > Filesystem Size Used Avail Use% Mounted on > /dev/sdb1 236M 159M 65M 71% /boot
This is the real issue. This file system is simply too small if you plan to keep more than 2 kernels at a time. > root@pumpkin:/boot# ls -la > total 148944 > drwxr-xr-x 4 root root 1024 Jul 3 16:53 . > drwxr-xr-x 20 root root 4096 Jul 3 16:45 .. > -rw-r--r-- 1 root root 236065 Apr 9 19:17 config-5.10.0-6-amd64 > -rw-r--r-- 1 root root 236188 May 28 09:31 config-5.10.0-7-amd64 > drwxr-xr-x 5 root root 1024 Jul 3 16:45 grub > -rw-r--r-- 1 root root 68868137 Jul 1 16:17 initrd.img-5.10.0-6-amd64 > -rw-r--r-- 1 root root 68909875 Jul 3 16:53 initrd.img-5.10.0-7-amd64 > drwx------ 2 root root 12288 Nov 21 2020 lost+found > -rw-r--r-- 1 root root 83 Apr 9 19:17 System.map-5.10.0-6-amd64 > -rw-r--r-- 1 root root 83 May 28 09:31 System.map-5.10.0-7-amd64 > -rw-r--r-- 1 root root 6824192 Apr 9 19:17 vmlinuz-5.10.0-6-amd64 > -rw-r--r-- 1 root root 6818304 May 28 09:31 vmlinuz-5.10.0-7-amd64 As long as you stick to two kernels, you should be OK for a while, at least until kernel packages increase dramatically in size, as they tend to do over time. One thing I'll note is that your initrd* files are twice as big as mine. -rw-r--r-- 1 root root 30924690 Jan 29 17:34 initrd.img-4.19.0-13-amd64 -rw-r--r-- 1 root root 33151811 May 13 07:19 initrd.img-5.10.0-6-amd64 -rw-r--r-- 1 root root 33165977 Jun 28 07:08 initrd.img-5.10.0-7-amd64 Maybe someone who understands this part of Debian can help you figure out why your initrd* files are so big, and what you should do about it. (Is it an nvidia thing, I wonder? I have motherboard Intel graphics.) Apart from that, if you're not able to increase the size of your /boot file system (tricky at best), my suggestion would be to remove your oldest kernel by hand any time you're about to install a new kernel (one with a new ABI number, like -8-amd64 -9-amd64 and so on). Freeing up that space in advance should prevent problems.
