[systemd-devel] Can udev assist?

[Andrei Borzenkov]

20.11.2015 20:08, Aaron_Wright at selinc.com пишет:
> I have a script that creates a partition (using pyparted) and then tries
> to format it (using mkfs.ext4). Most of the time this works OK. However,
> sometimes the format fails because it can't find the device. There seems
> to be a race condition due to a delay between creating a partition and the
> device node in /dev being created.
> Is there a tool in udev or udevadm that can help my script know when it
> safe to proceed?
>

If you want to be on safe side, the only safe way is probably to listen 
to kernel or udev events and wait until events for partitions appear.