[Systems] library.sugarlabs.org partition full

[Bernie Innocenti]

Who is maintaining the library VM? Munin shows that the /boot partition
is full.

We need to:

1. Correct the problem. It's probably too many installed kernels, and
there's a way to limit them automatically in Debian/Ubuntu

2. Add a page https://wiki.sugarlabs.org/go/Machine/library with
sysadmin contacts (or shutdown the unmaintained VM)

3. Make Munin send alerts to the sysadmins.

-- 
 _ // Bernie Innocenti
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