During bootup just before INIT, the following message is displayed:
pivot_root: pivot_root: Invalid argument
I'm booting the 2.6.15-archck kernel.
My pc seems to work fine. But why is this message displayed? Just curious.
It's safe to ignore. It has to do with the initrd/initramfs, but I don't know the entire details. I'm sure iphitus could explain, if he really felt like it.
Its just a minor mistake on my behalf in the initramfs system. When I have time, I will be giving mkinitramfs a big cleanup, which should remove this. In the meantime, it's entirely harmless.