# You will need this if you forgot to add LVM2 on systemd LVM arch/manjaro installation
# My own installation chroot procedure for Manjaro/Arch Linux. Replace UUIDs according to yours.
sudo mount -U 9d2ece4c-ec48-42a3-b4b1-25725d79d574 /mnt
sudo mount -U e66d4d27-5b78-4057-9c1b-7b12025e42ab /mnt/boot
cd /mnt
sudo mount -t proc proc proc/
sudo mount --rbind /sys sys/
sudo mount --rbind /dev dev/
sudo mount --rbind /run run/
sudo cp /etc/resolv.conf etc/resolv.conf
sudo chroot /mnt /bin/bash
# Here I should fix the lvm2 (sd-lvm2) hook at mkinitcpio and recreate the image:
# Edit mkinitcpio to add "lvm2" or "sd-lvm2" hook if using systemd
sudo nano /etc/mkinitcpio.conf
# Add lvm2 word after "resume" in HOOKS= row
# Close the file 
sudo mkinitcpio -p linux41
# Your system should boot now. I hope so... Good luck.