Created attachment 462713 [details]
A phot of the error messages on the screen.

User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20100101 Firefox/8.0

During boot, the system gets past the section where the screen resizes but then freezes. On pressing "esc," I get a message from fsck of "invalid argument while trying to open /dev/md0." Later it says, "the superblock could not be read or does not describe a correct ext2 filesystem."

I have RAID on /dev/md0 formatted as ext4 so I wouldn't expect it to describe a correct ext2 filesystem.

I have only seen this message on 12.2 with systemd, not on 11.4 or 12.1 with systemV. However, I did see it during the 12.1 (Final) install but the installation sailed right past it without a care in the world!

This failure happens on roughly a third of occasions.

Apologies for attached photo being rather out of focus. I've sharpened it up as best as I can.

Reproducible: Sometimes

Steps to Reproduce:
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