I am not sure how to explain this problem, but I will give it a try.
An hour ago i rebooted my laptop to get into my windows partition, and I saw some errors during reboot that I have not seen before. Therefore I booted into arch again to see what the errors were.
This time the system complains about the mtab file and that it cannot be written to.
I took a peek in /etc/rc.sysinit and saw:
stat_busy "Mounting Local Filesystems" /bin/mount -n -o remount,rw / /bin/rm -f /etc/mtab* /bin/mount -o remount,rw / ... ...
I believe the last line generates the first error message during boot. After I have logged in as root, I try to manually make /etc/mtab, but I get "permission denied". I am allowed to make other files in /etc and I can for instance edit fstab and so on.
Does anyone know what the hell just happened here? I did not do any updates or irregular stuff before the reboot that started this mess...
This might not be a suitable problem for the "newbie corner" forum, but I kinda feel like a newbie right now.