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Re: Enlarging /boot

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On Mon 03 Aug 2020 at 08:38:55 (+0200), Erwan David wrote:
> Le 02/08/2020 à 23:48, Leslie Rhorer a écrit :
> > On 8/2/2020 3:32 PM, Erwan David wrote:
> >> I used the buster installer about 1 year ago,with a fully encrypted
> >> disk, thus
> >>
> >> a /boot/efi partition, a /boot partition then an encrypted lvm.
> >>
> >> /boot is now not large enough to even have 2 kernels on it,
> >> initramfs-tools cannot create the images.
> >>
> >> I see this
> >> /dev/nvme0n1p2                     237M   92M  133M  41% /boot
> >> /dev/nvme0n1p1                     511M  5.3M  506M   2% /boot/efi
> >>
> >> Is it possible to reduce /boot/efi and have some more room for /boot, or
> >> should I reinstall the computer ?
> > 
> >     Um, the kernel is only about 5M in size.  With 133M free, there
> > should be plenty of room for multiple kernels.  The initrd image is
> > usually under 40M, so there should be room for the entire boot image to
> > be duplicated.  Note the current use is only 41%.  You shouldn't need
> > more space, per se, except that normally the initrd is temporarily
> > uncompressed while it is being created.  I think you could get around
> > this by employing chroot.
> 
> My initrd is 69 M...

In the absence of # du -sh /boot/*/ ; ls -l /boot/
that's a help. So you likely have one of System.map, config,
initrd.img and vmlinuz in /boot.

As long as you have other means of booting the system, you could try
copying initrd.img to a backup, and rebuilding it with MODULES=dep
in /etc/initramfs-tools/initramfs.conf, and see how much space that
would save. If you can still boot successfully with the dep version,
then you might have room now to install a second kernel, even with
MODULES=most restored.

It does make future upgrades a little more tedious.

Cheers,
David.

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Thread

Enlarging /boot Erwan David <erwan@rail.eu.org> - 2020-08-02 22:40 +0200
  Re: Enlarging /boot Leslie Rhorer <lesrhorer@att.net> - 2020-08-02 23:50 +0200
    Re: Enlarging /boot Erwan David <erwan@rail.eu.org> - 2020-08-03 08:40 +0200
      Re: Enlarging /boot Andrew Cater <amacater@gmail.com> - 2020-08-03 09:50 +0200
        Re: Enlarging /boot Leslie Rhorer <lesrhorer@att.net> - 2020-08-04 00:20 +0200
      Re: Enlarging /boot David Wright <deblis@lionunicorn.co.uk> - 2020-08-03 18:30 +0200
  Re: Enlarging /boot Doug McGarrett <dmcgarrett@optonline.net> - 2020-08-02 23:50 +0200
    Re: Enlarging /boot Leslie Rhorer <lesrhorer@att.net> - 2020-08-03 00:00 +0200
  Re: Enlarging /boot David Wright <deblis@lionunicorn.co.uk> - 2020-08-03 05:40 +0200
  Re: Enlarging /boot didier.gaumet@gmail.com - 2020-08-03 10:10 +0200

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