Not all disks can be ejected. For example, SATA disks can't be ejected. However,
they can be removed as long as all filesystems are unmounted properly. Ignore
errors during ejecting of a disk.
Closes: #1597.
Tests performed:
- In VirtualBox, attach a SATA disk, format it with two partitions. See them
auto-mounted by FreedomBox. Eject one of the partitions, both partitions are
unmounted but operation does not fail despite SATA disks not being eject-able.
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
e59f9ac3fc