in general, it is useful to be able to install kernel headers even on
the confined system.

Potentially need to change something on either the deb, snap, or both
side to make all of that work.

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2034688

Title:
  installation of kernel headers fail with "Read-only file system" error

Status in ubuntu-desktop-installer:
  Triaged
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Mantic 20230907

  Installation of packages that ship files in /lib/modules or
  /lib/firmware are expected to fail, so their installation must be
  prevented.

  For instance:

  $ apt install linux-headers-generic-6.3.0-7
  Reading package lists...
  Building dependency tree...
  Reading state information...
  linux-headers-6.3.0-7 is already the newest version (6.3.0-7.7).
  The following packages will be upgraded:
    linux-headers-6.3.0-7-generic
  1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  51 not fully installed or removed.
  Need to get 0 B/3,667 kB of archives.
  After this operation, 27.9 MB of additional disk space will be used.
  (Reading database ... 132615 files and directories currently installed.)
  Preparing to unpack .../linux-headers-6.3.0-7-generic_6.3.0-7.7_amd64.deb ...
  Unpacking linux-headers-6.3.0-7-generic (6.3.0-7.7) over (6.3.0-7.7) ...
  dpkg: error processing archive 
/var/cache/apt/archives/linux-headers-6.3.0-7-generic_6.3.0-7.7_amd64.deb 
(--unpack):
   error creating symbolic link './lib/modules/6.3.0-7-generic/build': 
Read-only file system
  dpkg: error while cleaning up:
   unable to remove newly-extracted version of 
'/lib/modules/6.3.0-7-generic/build': Read-only file system
  Errors were encountered while processing:
   /var/cache/apt/archives/linux-headers-6.3.0-7-generic_6.3.0-7.7_amd64.deb

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