You can generate this error if after having provisioned a node
using GPT partitioning, you clean its MBR using say
dd if=/dev/zero bs=1024 count=1 of=/dev/sda
and then cleanup all Ironic/Bifrost informations to get it
reprovisioned.
In this case sgdisk -Z returns an error and last_error field
in Ironic contains:
Error writing image to device: Writing image to device
/dev/sda failed with exit code 2
Caution: invalid main GPT header, but valid backup;
regenerating main header\nfrom backup!\n
\nInvalid partition data!\
Change-Id: Ib617737fff5e40cb376edda0232e0726d9c71231
(cherry picked from commit 5fcf3f066c)
d1ec63bd1f