recovery

[brandon-heller]

sudo apt install lvm2
sudo cryptsetup luksOpen /dev/sda2 system
sudo mkdir /mnt/root
sudo vgchange -ay
sudo mount /dev/mapper/system-root /mnt/root
cd /mnt/root
sudo mount /dev/mapper/system-boot /mnt/root/boot
sudo mount /dev/sda1 /mnt/root/boot/efi
sudo mount --bind /dev /mnt/root/dev
sudo mount --bind /run /mnt/root/run
sudo chroot /mnt/root
# following inside chrooted system
mount --types=proc proc /proc
mount --types=sysfs sys /sys
/usr/local/sbin/refreshgrub

https://help.ubuntu.com/community/ManualFullSystemEncryption/Troubleshooting

# heplful stuff:
sudo vgs
sudo vgscan
sudo pvs
sudo lvs
sudo lvdisplay /dev/mapper/system
sudo sudo fdisk -l

# visual display:
lsblk -o NAME,TYPE,FSTYPE

# details
Device       Start        End    Sectors   Size Type
/dev/sda1     2048    2050047    2048000  1000M EFI System
/dev/sda2  2050048 1025609727 1023559680 488.1G Linux filesystem
/dev/sdb1  *     2048 15267822 15265775  7.3G  c W95 FAT32 (LBA)