Re: 3.18.1 + latest bcache-dev

Rolf Fokkens
2015-01-03T16:40:27Z

Hi Slava,

Sounds like the kernel (using bcache-dev) is not able to handle the
current format. If so, bcache-tools may help in "reformatting" bcache
devices, but that's no solution for existing systems.

So is my understanding correct that there's no easy kernel upgrade path
(to bcache-dev) ?

Rolf

On 12/29/2014 05:05 AM, Slava Pestov wrote:
> Hi Stephen,
>
> The bcache-dev branch has on-disk format changes that require a new
> bcache-tools. I'm not sure where Kent posts the source for that.
>
> On Sat, Dec 27, 2014 at 6:35 PM, Stephen R. van den Berg <srb@cuci.nl> wrote:
>> Now I tried this:
>> Combine 3.18.1 and rebase all the patches from bcache-dev onto that.
>> But, in trying that, I get a consistent:
>>
>> register_bcache() error opening /dev/sdb3: Invalid superblock: member info area missing
>>
>> Anything I overlooked? The bcache-tools are straight from git too.
>> --
>> Stephen.
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