Updating from USB
Update System by Transferring Files from USB
Delete old files
You’ll need to use your judgement here
# Check available files
ls /srv/desktop
# Delete old files
# Say you want to delete v18,19,20
rm /srv/desktop/v{18,19,20}.*Mount USB and Transfer New Files
# Identify the USB device
lsblk
# Assume the USB device is /dev/sdb
sudo mount /dev/sdb4 /mnt
# Transfer new files
rsync -avP /mnt/desktop/v* /srv/desktopUnmount USB and unplug it
# Unmount USB
sudo umount /mntUpdate the desktop
# Update Desktop and reboot
tl-img-unpack && tl-img-restore
sudo reboot