hanging initrds

[der.hans]

Am 18. Sep, 2017 schwätzte Matt Graham so:

> On 2017-09-18 11:00, der.hans wrote:
>> one of my Ubuntu systems has a bunch of /boot/initrd files for kernels
>> that have been removed.
>> 
>> I believe initrd is generated at kernel package install time ( and
>> probably regenerated if certain packages such as firmware are updated ),
>> so removing the old initrd files won't bork package management. It's been
>> a while since I've reviewed specifics, so no idea if things have changed.
>> 
>> 'dpkg -S ínitrd' doesn't reveal any package ownership for initrd files at 
>> all.
>> 'apt-cache search initrd' doesn't bring up anything useful for this.
>> 'dpkg -L' on a kernel package doesn't reveal any initrd files.
> [...]
>> Purging a kernel that was installed did get rid of the initrd for that
>> kernel, so maybe it's matter of reinstalling the old kernels and purging
>> them, except that there isn't room to install anything because the initrds
>> have filled /boot...
>
> Move the old initrds to somewhere that has more space, then reboot and see if 
> anything breaks?  dpkg saying that the files are not owned by anything sounds 
> reasonable if they're built dynamically.

Yeah, should totally work, just been a while since I looked at the innards
of those packages.

ciao,

der.hans
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