[gentoo-dev] Re: Need design help/input for eclean-kernel

[Jonathan Callen]

On 06/30/2016 08:38 AM, Michał Górny wrote:
> Hello, everyone.
>
> Back in 2011 I started a project called eclean-kernel. The idea was
> pretty simple -- to have a tool that would clean the old kernels for
> me since their install is not controlled by the package manager. This
> little project of mine seems to have gained a lot of popularity.
>
> Sadly, over time a lot of people had trouble with it. Aside to minor
> Python problems, eclean-kernel proved too simple to handle multitude of
> user systems with varying /boot layouts. In fact, even I don't use it
> on all of my systems since it doesn't handle them properly.
>
> After being buried in another set of bug reports, I'd like to
> officially ask Gentoo developers and users for help. I think it's
> impossible to solve most of the bugs reported so far in the current
> program design. Therefore, I'd like to rewrite it in a more flexible
> manner.
>
> For this reason, I would like to ask you to provide me with
> different /boot layouts you may have, had or seen. Basically, the idea
> is to collect as many different layouts as necessary, and use that to
> design eclean-kernel in a way making it possible to easily configure it
> to handle proper variant -- or even possibly make it capable of
> autoconfiguration.
>
> So if you have some time, please reply to this thread with
> a specific /boot layout that you think needs to be handled, with
> as much helpful information as possible -- including possible
> distinctive features and pitfalls.
>
> Thanks in advance.
>

https://wiki.freedesktop.org/www/Specifications/BootLoaderSpec/

${MACHINE_ID} is the contents of /etc/machine-id

Boot loader config:
    /boot/loader/entries/${MACHINE_ID}-${KV}.conf

Kernel, initramfs, etc.:
    /boot/${MACHINE_ID}/${KV}/linux
    /boot/${MACHINE_ID}/${KV}/initrd
    /boot/${MACHINE_ID}/${KV}/config
    /boot/${MACHINE_ID}/${KV}/System.map

Can be generated by kernel-install(8) (part of systemd).

-- 
Jonathan Callen