rootfs on arch linux

Find yourself in a bind and logged in to a recovery shell named rootfs?

If you happen to know the partition that your operating system is on, and the boot partition, you can boot into your kernel from this shell.

On my system, I have this layout:

/dev/sda1 > /boot
/dev/sda2 > /home
/dev/sda3 > / (ext4)
/dev/sda4 > / (ext4)


From this rootfs shell, I executed the following commands and booted into the desired kernel on sda4.


# mkdir /boot
# mount -t /dev/sda4 /new_root
# cd /new_root
# exec init


This had me boot into my fresh install of arch that I had installed from another partition. Now I can fix grub!