Hi,
I have been running my RPI with arch since the first image was released. I had no problems until a few weeks ago, when after a pacman -Syu and reboot, the system was unable to detect the integrated network adapter. After a while, I decided to backup and reinstall. Downloaded the latest image (think it was the may one), installed as usual. The system booted and worked perfectly, until reboot. Then I wouldn't even get the splash colors at boot.
Put the SD card on my linux box, ran fsck.vfat, it gave the message that the first FAT was damaged, and that it was using the backup one to recover. After that, the Pi will boot one more time, then get broken again, every single time. Until once both FATs were damaged, so couldn't repair anymore.
Ran badblocks, and the SD card came out just fine. Then installed raspbian... no problems whatsoever. Tried with a january image of Arch, worked like a charm. Updated with pacman... the new things got loaded... then the FAT got broken again.
Tried today with this month's image, still the same issue. Happens out of the box.
Any ideas?, as I really don't want to move away from arch. Installing in another SD card is not an option, as this is the only one I have that is fast and big enough for my needs, that is not being used in my DSLR