[systemd-devel] EXT :Re: Systemd udev add tag for boot device

[Lennart Poettering]

On Mo, 13.01.20 09:10, Boyce, Kevin P. (AS) (kevin.boyce at ngc.com) wrote:

> Thank you Lennart.
>
> I'm thinking I will create my own sort of "built-in" command that can parse
> /proc/cmdline to look for the root= variable early in udev rules so I can
> create the tag.

So, systemd has to for determining the backing file system of some directory
and this is used by gpt-auto-generator for finding the block device
backing / or /usr/. I figure you want something like that?

We don't expose that directly though, and it's limited, since we do
not cover complex storage. We do cover btrfs though.

Lennart

--
Lennart Poettering, Berlin