Diverting directories does not work of course, but we can divert the files...
root@p:~# apt install wireless-regdb
Installing:
wireless-regdb
Summary:
Upgrading: 0, Installing: 1, Removing: 0, Not Upgrading: 0
Download size: 7214 B
Space needed: 23.6 kB / 6929 MB available
Get:1 http://archive.ubuntu.com/ubuntu plucky/main amd64 wireless-regdb all
2024.10.07-0ubuntu1 [7214 B]
Fetched 7214 B in 0s (26.7 kB/s)
Selecting previously unselected package wireless-regdb.
(Reading database ... 77949 files and directories currently installed.)
Preparing to unpack .../wireless-regdb_2024.10.07-0ubuntu1_all.deb ...
Unpacking wireless-regdb (2024.10.07-0ubuntu1) ...
dpkg: error processing archive
/var/cache/apt/archives/wireless-regdb_2024.10.07-0ubuntu1_all.deb (--unpack):
unable to create '/lib/firmware/regulatory.db.dpkg-new' (while processing
'./lib/firmware/regulatory.db'): Read-only file system
dpkg: error while cleaning up:
unable to remove newly-extracted version of '/lib/firmware/regulatory.db':
Read-only file system
Errors were encountered while processing:
/var/cache/apt/archives/wireless-regdb_2024.10.07-0ubuntu1_all.deb
Error: Sub-process /usr/bin/dpkg returned an error code (1)
root@p:~# mkdir /lib/firmware.unused/
root@p:~# dpkg-divert --package boot-managed-by-snapd --divert
/lib/firmware.unused/regulatory.db --no-rename /lib/firmware/regulatory.db
Adding 'diversion of /lib/firmware/regulatory.db to
/lib/firmware.unused/regulatory.db by boot-managed-by-snapd'
root@p:~# dpkg-divert --package boot-managed-by-snapd --divert
/lib/firmware.unused/regulatory.db.p7s --no-rename
/lib/firmware/regulatory.db.p7s
Adding 'diversion of /lib/firmware/regulatory.db.p7s to
/lib/firmware.unused/regulatory.db.p7s by boot-managed-by-snapd'
root@p:~# apt install wireless-regdb
Upgrading:
wireless-regdb
Summary:
Upgrading: 1, Installing: 0, Removing: 0, Not Upgrading: 0
1 not fully installed or removed.
Download size: 0 B / 7214 B
Space needed: 23.6 kB / 6929 MB available
(Reading database ... 77953 files and directories currently installed.)
Preparing to unpack .../wireless-regdb_2024.10.07-0ubuntu1_all.deb ...
Unpacking wireless-regdb (2024.10.07-0ubuntu1) over (2024.10.07-0ubuntu1) ...
Setting up wireless-regdb (2024.10.07-0ubuntu1) ...
Processing triggers for man-db (2.13.0-1) ...
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https://bugs.launchpad.net/bugs/2096979
Title:
wireless-regdb update problem at Ubuntu 24.04.1 TPM-backed Full Disk
Encryption setup
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/boot-managed-by-snapd/+bug/2096979/+subscriptions
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