Why does the ubuntu-server package depend on update-notifier-common?

I'd like to uninstall update-notifier-common and implement my own update checking solution, but every time I try, I'm warned that doing so will also uninstall the ubuntu-server package:

apt purge update-notifier-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED: ubuntu-server* update-notifier-common*
0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
After this operation, 1460 kB disk space will be freed.
Do you want to continue? [Y/n]

What function does update-notifier-common provide for ubuntu-server, and why does ubuntu-server depend on it?

1 Answer

The file list of update-manager-common shows some files that would of use on a server:

/etc/kernel/postinst.d/update-notifier
/etc/update-motd.d/90-updates-available
/etc/update-motd.d/95-hwe-eol
/etc/update-motd.d/98-fsck-at-reboot
/etc/update-motd.d/98-reboot-required

It adds various useful messages to MOTD, and sets the reboot required notification for kernel packages. Could these be put in another package? Perhaps. Should they be? I don't see a compelling reason.

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