add a growfs to systemd
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
-LABEL=ROOT / ext4 errors=remount-ro 0 1
+LABEL=ROOT / ext4 errors=remount-ro,x-systemd.growfs 0 1
LABEL=EFI /boot/efi vfat umask=0077 0 2
/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0
