Comment 0 for bug 1825189

When doing a full disk encrypted installation with d-i using
"Guided - use entire disk and setup encrypted LVM"
on a multipath device (in this case zFCP/SCSI)
the post-install reboot ends in busybox/initramfs
while trying to open/unlock an incorrect device-maper device.
d-i tries to open /dev/mapper/mpatha5 but only /dev/mapper/mpatha-part5 exists.

Fixing the wrong device in crypttab like:
echo "mpatha5_crypt /dev/mapper/mpatha-part5 none luks,discard" > ./
cryptroot/crypttab
and trying to open it manually:
cryptsetup open --key-file /etc/zkey/repository/mpatha5_crypt.skey --key-size 1024 --cipher paes-xts-plain64 /dev/mapper/mpatha-part5 mpatha5_crypt
and leaving busybox again seems to work.

For more details see attachment ...