Greg Wooledge [2021-07-03 14:03:44] wrote:
> 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.
Not at all. Just adjust the /etc/initramfs-tools/initramfs.conf with
MODULES=dep
COMPRESS=lzma
and you'll have room for many more kernels.
> 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
Indeed, his initrd.imgs are unusually large. Not sure what's going on
with them, but the above two changes should shave off at the very least
20MB from each one of his initrd.img.
The only thing with `MODULES=dep` is that it runs a slightly higher risk
of ending up with an unbootable system after a hardware or
filesystem/LVM/MD/partition change. Just make sure you have some way to
do a "rescue boot" in those cases (typically via a USB flash key with some
minimal GNU/Linux system on it), but this comes in handy in many other
circumstances so I recommend you have that at hand in any case.
Stefan
