add boot params archisoflags= and cow_flags= for mount options

Having files on btrfs subvolumes requires to give mount options. Add
boot params archisoflags= and cow_flags= for this purpose. Boot
parameters could look like this:

... archisodevice=/dev/sdaX archisoflags=subvolume=isos
cow_device=/dev/sdaX cow_flags=subvolume=persist ...

Signed-off-by: Christian Hesse <mail@eworm.de>

0 files changed, 0 insertions, 0 deletions