sysnove/ganeti-instance-debootstrap

ganeti-instance-debootstrap's Issues

import fails with sfdisk error when called from gnt-backup import

I'm working on using gnt-backup to export some plain LVM instances from a single-node cluster, copy the files to a brand new single-node plain LVM (for now) cluster, and import them. On either the source or destination node, the import operation results in the same error partway through importing the disk. After setting MAX_RECENT_OUTPUT_LINES to 200, I can see that sfdisk is bombing out:

Fri Jan 6 10:30:35 2017 disk/0 failed to receive data: Exited with status 1 (recent output:
sfdisk: Checking that no-one is using this disk right now ...
sfdisk: BLKRRPART: Invalid argument
sfdisk: OK
sfdisk: /dev/rootvg/fe8efe28-1d3b-4cc7-8184-05d550062c62.disk0: unrecognized partition table type
sfdisk: No partitions found
sfdisk: BLKRRPART: Invalid argument
sfdisk: If you created or changed a DOS partition, /dev/foo7, say, then use dd(1)
to zero the first 512 bytes: dd if=/dev/zero of=/dev/foo7 bs=512 count=1
(See fdisk(8).)
restore: cannot open /dev/tty: No such device or address
restore: ./lost+found: File exists
*** buffer overflow detected ***: restore terminated

I'm not sure if this is the right place to report the issue, but I haven't had any luck figuring out how gnt-backup calls ganeti-instance-debootstrap or using its import script, which doesn't seem to be documented for manual use.