Re: Bcache on SLES 12

[Christoph Nelles <evilazrael@evilazrael.de>]

Hi,

a modprobe bcache would have done the job as the kernel module is not 
automatically loaded per default on SLES 12.

Regards

Christoph

Am 09.03.2016 um 19:03 schrieb Garnett, James:
> Here is a description of a problem I found with setting up Bcache on SLES 12 and also the fix.
>
> Bcache-tools Version: 0.1.g71-2.12
> Linux Kernel Uname level: 3.12.51-52.39-default
> SuSE-release: VERSION = 12 PATCHLEVEL = 0
>
> Problem: After running make-bcache -B '/dev/sdx' example make-bcache -B /dev/sdb and running
> 'echo /dev/sdb > /sys/fs/bcache/register'. I received an invalid command error because /sys/fs/bcache/register does not exist.
> I then ran the script '/lib/udev/bcache-register' which still did not create /sys/fs/bcache/register.
>
> Fix: I ran YAST and added /Software/Add-On Products/SUSE Linux Enterprise Software Development Kit 12. After adding a group of libraries automatically installed.
> Afterwards I reran '/lib/udev/bcache-register' which successfully created /sys/fs/bcache/register. Lastly I was able to follow the Getting Started section of the Bcache documentation located at evilpiepirate.
> Upon reboot; /sys/fs/bcache/register still does not exist so I created a script that fixes the problem and mounts /dev/bcach0. See Below:
>
> /lib/udev/bcache-register
> echo /dev/sdb > /sys/fs/bcache/register
> echo /dev/msdp_images/IMAGES > /sys/fs/bcache/register
> mount /dev/bcache0 /msdp/images
>
>
> James Garnett
> Sr. Systems Architect
> Health Alliance Plan of Michigan
>
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-- 
Christoph Nelles

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