joel.bertr...@systella.fr (=?UTF-8?Q?BERTRAND_Jo=c3=abl?=) writes:
> Last line begins with "dump", maybe end of line contains "device bad".
"device bad" comes from the driver dump routine returning ENXIO.
There can be multiple causes for this error, but the most prominent is
that you don't write to a partition marked as "swap".
If the disk uses a regular disklabel, then the partition must be
of type FS_SWAP ("swap" in the disklabel tool).
If the disk uses wedges, you must dump to a wedge of type
DKW_PTYPE_SWAP, DKW_PTYPE_RAID or DKW_PTYPE_CGD ("swap", "raid"
and "cgd" in the gpt tool).
Your system tries to dump to device 18,1, that's raid0b (disklabel
partition). But it's possible that this is wrong and the disk uses
wedges. Then you need to configure the dump device, manually with
sawpctl or with a line in /etc/fstab like:
NAME=my-swap-partition none swap sw,dp 0 0
Greetings,
