[systemd-devel] systemd-makefs with very slight data corruption ?

[Lennart Poettering]

On Mi, 12.02.20 19:19, Xogium (contact at xogium.me) wrote:

> Hi,
> I am wondering about how to best implement a mechanism to recreate a specific
> filesystem in case of the slightest data corruption done to it. From what I read
> in systemd-makefs manpage, the tool will not trigger if it can detect that a
> filesystem is already present. However I'm thinking that in some case, the data
> can get corrupted, yet the filesystem still is reported as ext4 to makefs.
> Perhaps I understood wrong, in which case, could I somehow order systemd-makefs
> to be ran only if either systemd-fsck fails, or if mounting fails ? This
> filesystem can easily get corrupted due to power loss, and isn't important for
> the entire system to work, however it would be nicer if this could be detected
> and delt with accordingly.

This is currently not supported. Consider filing an RFE issue on
github asking for this, this appears to make sense to me. I mean
systemd-fsck could just do what systemd-makefs does depending on the
exit code of /sbin/fsck...

Lennart

--
Lennart Poettering, Berlin