On Fri, Dec 27, 2013 at 4:02 PM, Holger Schurig <[email protected]> wrote:
> Maybe sd_id128_get_machine() could try first to read /etc/machine-id
> and use that. If it doesn't exist, it could read /run/machine-id and
> use that. If that doesn't exist we're doomed *)
It's a simple defined 3rd party file API, not rules other than open()
should be applied.
This could work:
- place an empty file in /etc/machine-id
- systemd will create a random id and mount it over the empty file
- you mount the root device a second time at /run/foo
- you replace the *content* (not the inode) of /run/foo/etc/machine-id
with the content of /etc/machine-id
- with the next reboot, the content should be persistent and identical
Kay
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