Arch Linux

with Systemd-200 I can't boot from software raid, md-raid1. This setup has been working flawlessly since 2009. All packages up-to-date.

this is the boot message:
----
:: running early hook [udev]
:: running hook [udev]
:: Triggering uevents...
Waiting 10 seconds for device /dev/md1 ...
:: performing fsck on '/dev/md1'
fsck.ext2: Invalid argument while trying to open /dev/md1
/dev/md1:
The superblock could not be read or does not describe a correct ext2
...
...
You are now being dropped into an emergency shell.
----

From that shell, `cat /proc/mdstat` shows all arrays in place correctly. Note, that md1 is an ext4 file system, not ext2. I guess, they were not present yet at the time fsck starts???

Turning off fsck with the fastboot kernel parameter results in an error saying that /dev/md1 is not available (sorry, I'll try to reproduce and make a photo of the screen with the exact error message).

Reverting back to systemd-198-2 fixed the issue.