[dm-devel] Mapping sectors to have errors

[Milan Broz]

On 10/28/2011 04:31 AM, Yathindra wrote:
> I'm trying to create a disk and map some sectors to have errors on them.
> 
> I tried this,
> echo "0 100000 linear /dev/sdb 0 100000 480081250 error"| dmsetup create bad_disk
> device-mapper: reload ioctl failed: Invalid argument
> Command failed

Try
echo -e "0 100000 linear /dev/sdb 0\n100000 480081250 error"| dmsetup create bad_disk

Milan