On Wed, Jan 23, 2013 at 01:51:56PM +1300, Andrew Thrift wrote:
> Hi,
>
> I am attempting to get bcache devices to register by echoing all
> /dev/sd* and /dev/dm-* to the bcache registration in /sys but get
> the following:
>
> echo /dev/dm-* > /sys/fs/bcache/register
> bash: echo: write error: Invalid argument
>
> echo /dev/sd* > /sys/fs/bcache/register
> bash: echo: write error: Invalid argument
>
>
> I am using a 3.7 kernel pulled from 4747cd9 revision.
>
> Is this a bug, or am I just "doing it wrong" ?
You've got to echo them one at a time, like so:
for i in `ls /dev/sd*`; do
echo $i > /sys/fs/bcache/register_quiet
done
(initramfs/script in bcache-tools does this)
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