Detecting the device of a crypto mount
I have an external eSATA-hdd on an OpenSUSE 12.2 system. The external hdd has an LVM on a dm-crypt partition.
I mount it by powering it up and then doing
rescan-scsi-bus.sh
cryptsetup -v luksOpen
vgchange -ay
mount
Now when I want to power the hdd down, I do
umount
vgchange -an extern-1
cryptsetup -v remove /dev/mapper/extern-1-crypt
echo 1 >/sys/block/sdf/device/delete
Here the device (sdf) is currently hardcoded in the script. Can I somehow deduce it in the script from the VG or the crypto device?
I have an external eSATA-hdd on an OpenSUSE 12.2 system. The external hdd has an LVM on a dm-crypt partition.
I mount it by powering it up and then doing
rescan-scsi-bus.sh
cryptsetup -v luksOpen
vgchange -ay
mount
Now when I want to power the hdd down, I do
umount
vgchange -an extern-1
cryptsetup -v remove /dev/mapper/extern-1-crypt
echo 1 >/sys/block/sdf/device/delete
Here the device (sdf) is currently hardcoded in the script. Can I somehow deduce it in the script from the VG or the crypto device?
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