Hmmm... /boot is too small. what's the best way to increase it's size?

From	"Rick Thomas" <rick.thomas@pobox.com>
Newsgroups	linux.debian.user
Subject	Hmmm... /boot is too small. what's the best way to increase it's size?
Date	2020-05-10 05:30 +0200
Message-ID	<A4KP7-1aU-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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I recently did a "apt update ; apt upgrade" and it died for lack of space in /boot when trying to install the latest kernel.

I purged a couple of old kernel packages (still present in the 'stable' repo, so they weren't obsolete) to make enough space and tried again.  Worked this time, but I would have liked to have the old kernels around as fallbacks just in case of a regression...

Here's the disk layout:

rbthomas@milli:~$ lsblk
NAME                  MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                     8:0    0 111.8G  0 disk 
├─sda1                  8:1    0   512M  0 part /boot/efi
├─sda2                  8:2    0   244M  0 part /boot
└─sda3                  8:3    0 111.1G  0 part 
  ├─debian--vg-root   253:0    0    28G  0 lvm  /
  ├─debian--vg-swap_1 253:1    0   7.9G  0 lvm  [SWAP]
  └─debian--vg-home   253:2    0  75.2G  0 lvm  /home
sdb                     8:16   1   239G  0 disk 
└─sdb1                  8:17   1   239G  0 part /media/rbthomas/Spare
mmcblk0               179:0    0 238.3G  0 disk 
└─mmcblk0p1           179:1    0 238.3G  0 part /media/rbthomas/Downloads
rbthomas@milli:~$ 

rbthomas@milli:~$ df -HTP | grep -v tmpfs
Filesystem                  Type      Size  Used Avail Use% Mounted on
/dev/mapper/debian--vg-root ext4       30G  9.9G   19G  36% /
/dev/sda2                   ext2      248M   78M  158M  34% /boot
/dev/sda1                   vfat      536M  144k  536M   1% /boot/efi
/dev/mapper/debian--vg-home ext4       79G  4.4G   71G   6% /home
/dev/sdb1                   ext4      252G   63M  239G   1% /media/rbthomas/Spare
/dev/mmcblk0p1              ext4      251G   63M  238G   1% /media/rbthomas/Downloads
rbthomas@milli:~$ 


What's the best way to increase the size of /boot ?

I can easily create a gig or so of space by a shrink/resize of /home, but how do I add that space to /dev/sda2 ?

I can't just move up the end of /dev/sda2 = start of /dev/sda3 without backing up and restoring, can I?


Any suggestions would be appreciated.
Rick

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Hmmm... /boot is too small. what's the best way to increase it's size? "Rick Thomas" <rick.thomas@pobox.com> - 2020-05-10 05:30 +0200
  Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Andy Smith <andy@strugglers.net> - 2020-05-10 05:40 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Andy Smith <andy@strugglers.net> - 2020-05-10 05:50 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's  size? The Wanderer <wanderer@fastmail.fm> - 2020-05-10 06:00 +0200
      Re: Hmmm... /boot is too small. what's the best way to increase it's  size? elvis <elvis@dogonfire.com> - 2020-05-11 07:50 +0200
  Re: Hmmm... /boot is too small. what's the best way to increase  it's size? Charles Curley <charlescurley@charlescurley.com> - 2020-05-10 06:40 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's size? "Rick Thomas" <rick.thomas@pobox.com> - 2020-05-10 09:10 +0200
      Re: Hmmm... /boot is too small. what's the best way to increase it's size? "Rick Thomas" <rick.thomas@pobox.com> - 2020-05-10 11:30 +0200
        Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Andrei POPESCU <andreimpopescu@gmail.com> - 2020-05-10 12:30 +0200
          Re: Hmmm... /boot is too small. what's the best way to increase it's size? "Rick Thomas" <rick.thomas@pobox.com> - 2020-05-10 13:30 +0200
            Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Andrei POPESCU <andreimpopescu@gmail.com> - 2020-05-11 08:10 +0200
  Re: Hmmm... /boot is too small. what's the best way to increase it's  size? "Will Mengarini" <seldon@eskimo.com> - 2020-05-10 07:20 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Andrei POPESCU <andreimpopescu@gmail.com> - 2020-05-10 09:10 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's size? "Rick Thomas" <rick.thomas@pobox.com> - 2020-05-10 09:20 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's  size? David Christensen <dpchrist@holgerdanske.com> - 2020-05-10 10:20 +0200
      Re: Hmmm... /boot is too small. what's the best way to increase it's size? "Rick Thomas" <rick.thomas@pobox.com> - 2020-05-10 11:30 +0200
        Re: Hmmm... /boot is too small. what's the best way to increase it's size? rhkramer@gmail.com - 2020-05-10 14:00 +0200
        Re: Hmmm... /boot is too small. what's the best way to increase it's  size? David Christensen <dpchrist@holgerdanske.com> - 2020-05-10 21:40 +0200
          Re: Hmmm... /boot is too small. what's the best way to increase it's size? "Rick Thomas" <rick.thomas@pobox.com> - 2020-05-11 01:20 +0200
            Re: Hmmm... /boot is too small. what's the best way to increase it's  size? elvis <elvis@dogonfire.com> - 2020-05-11 07:40 +0200
            Re: Hmmm... /boot is too small. what's the best way to increase it's  size? David Christensen <dpchrist@holgerdanske.com> - 2020-05-11 09:40 +0200
          Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Andrei POPESCU <andreimpopescu@gmail.com> - 2020-05-11 08:20 +0200
            Re: Hmmm... /boot is too small. what's the best way to increase it's  size? David Christensen <dpchrist@holgerdanske.com> - 2020-05-11 10:20 +0200
              Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Andrei POPESCU <andreimpopescu@gmail.com> - 2020-05-11 15:10 +0200
        Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Tom Dial <tddial@comcast.net> - 2020-05-11 06:10 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Greg Wooledge <wooledg@eeg.ccf.org> - 2020-05-11 13:40 +0200
      Re: Hmmm... /boot is too small. what's the best way to increase  it's size? Celejar <celejar@gmail.com> - 2020-05-11 16:30 +0200
        Re: Hmmm... /boot is too small. what's the best way to increase it's  size? David Wright <deblis@lionunicorn.co.uk> - 2020-05-11 18:30 +0200
          Re: Hmmm... /boot is too small. what's the best way to increase  it's size? Celejar <celejar@gmail.com> - 2020-05-11 18:50 +0200
  Re: Hmmm... /boot is too small. what's the best way to increase it's  size? David Wright <deblis@lionunicorn.co.uk> - 2020-05-10 16:20 +0200
    Re: Hmmm... /boot is too small. what's the best way to increase it's size? Sven Hartge <sven@svenhartge.de> - 2020-05-10 16:40 +0200
      Re: Hmmm... /boot is too small. what's the best way to increase it's  size? David Wright <deblis@lionunicorn.co.uk> - 2020-05-10 17:20 +0200
  Re: Hmmm... /boot is too small. what's the best way to increase it's  size? Jonathan Dowland <jon+debian-user@dow.land> - 2020-05-14 11:30 +0200

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