There's a quite repetitive verbose output during update-grub, mentioning:
ERROR: unsupported sector size 4096 on <partition>.
It happens because os-prober calls dmraid for every partition, but it doesn't support 4k sectors, and yields to stderr.
A simple redirect quiets it up.
... I'm not sure it should be quieted up :) feel free to modify the scripts if you think so, or tell me and I can submit another patch.
~ # dmraid -r -c
ERROR: unsupported sector size 4096 on /dev/sda.
ERROR: unsupported sector size 4096 on /dev/sdb.
ERROR: unsupported sector size 4096 on /dev/sdc.
ERROR: unsupported sector size 4096 on /dev/sdd.
ERROR: unsupported sector size 4096 on /dev/sde.
ERROR: unsupported sector size 4096 on /dev/sdf.
ERROR: unsupported sector size 4096 on /dev/sdg.
ERROR: unsupported sector size 4096 on /dev/sdh.
ERROR: unsupported sector size 4096 on /dev/sdi.
ERROR: unsupported sector size 4096 on /dev/sdj.
ERROR: unsupported sector size 4096 on /dev/sdk.
ERROR: unsupported sector size 4096 on /dev/sdl.
ERROR: unsupported sector size 4096 on /dev/dm-0.
ERROR: unsupported sector size 4096 on /dev/dm-1.
ERROR: unsupported sector size 4096 on /dev/dm-2.
ERROR: unsupported sector size 4096 on /dev/dm-3.
ERROR: unsupported sector size 4096 on /dev/dm-4.
ERROR: unsupported sector size 4096 on /dev/dm-5.
ERROR: unsupported sector size 4096 on /dev/dm-6.
ERROR: unsupported sector size 4096 on /dev/dm-7.
ERROR: unsupported sector size 4096 on /dev/dm-8.
ERROR: unsupported sector size 4096 on /dev/dm-9.
ERROR: unsupported sector size 4096 on /dev/dm-10.
ERROR: unsupported sector size 4096 on /dev/dm-11.
ERROR: unsupported sector size 4096 on /dev/dm-12.
ERROR: unsupported sector size 4096 on /dev/dm-13.
ERROR: unsupported sector size 4096 on /dev/dm-14.
ERROR: unsupported sector size 4096 on /dev/dm-15.
ERROR: unsupported sector size 4096 on /dev/dm-16.
ERROR: unsupported sector size 4096 on /dev/dm-17.
no block devices found
~ #
~ # dmraid -r -c 2>/dev/null
no block devices found
BTW, but not too important:
There's a quite repetitive verbose output during update-grub, mentioning:
ERROR: unsupported sector size 4096 on <partition>.
It happens because os-prober calls dmraid for every partition, but it doesn't support 4k sectors, and yields to stderr.
A simple redirect quiets it up.
... I'm not sure it should be quieted up :) feel free to modify the scripts if you think so, or tell me and I can submit another patch.
~ # dmraid -r -c
ERROR: unsupported sector size 4096 on /dev/sda.
ERROR: unsupported sector size 4096 on /dev/sdb.
ERROR: unsupported sector size 4096 on /dev/sdc.
ERROR: unsupported sector size 4096 on /dev/sdd.
ERROR: unsupported sector size 4096 on /dev/sde.
ERROR: unsupported sector size 4096 on /dev/sdf.
ERROR: unsupported sector size 4096 on /dev/sdg.
ERROR: unsupported sector size 4096 on /dev/sdh.
ERROR: unsupported sector size 4096 on /dev/sdi.
ERROR: unsupported sector size 4096 on /dev/sdj.
ERROR: unsupported sector size 4096 on /dev/sdk.
ERROR: unsupported sector size 4096 on /dev/sdl.
ERROR: unsupported sector size 4096 on /dev/dm-0.
ERROR: unsupported sector size 4096 on /dev/dm-1.
ERROR: unsupported sector size 4096 on /dev/dm-2.
ERROR: unsupported sector size 4096 on /dev/dm-3.
ERROR: unsupported sector size 4096 on /dev/dm-4.
ERROR: unsupported sector size 4096 on /dev/dm-5.
ERROR: unsupported sector size 4096 on /dev/dm-6.
ERROR: unsupported sector size 4096 on /dev/dm-7.
ERROR: unsupported sector size 4096 on /dev/dm-8.
ERROR: unsupported sector size 4096 on /dev/dm-9.
ERROR: unsupported sector size 4096 on /dev/dm-10.
ERROR: unsupported sector size 4096 on /dev/dm-11.
ERROR: unsupported sector size 4096 on /dev/dm-12.
ERROR: unsupported sector size 4096 on /dev/dm-13.
ERROR: unsupported sector size 4096 on /dev/dm-14.
ERROR: unsupported sector size 4096 on /dev/dm-15.
ERROR: unsupported sector size 4096 on /dev/dm-16.
ERROR: unsupported sector size 4096 on /dev/dm-17.
no block devices found
~ #
~ # dmraid -r -c 2>/dev/null
no block devices found