How to chroot into my PC

1. Boot into a Live Environment

   Boot from your Arch Linux installation media and open a terminal.

2. Open the Encrypted RAID Array

   cryptsetup open /dev/md0 cryptarray
   

3. Mount the Filesystems

   mount /dev/mapper/cryptarray /mnt
   mount /dev/sda1 /mnt/boot
   arch-chroot /mnt