Mailinglist Archive: opensuse (963 mails)

[Per Jessen <per@xxxxxxxxxxxx>]

Felix Miata wrote:

> I want to make /dev/md7 out of sdb14 which is formatted EXT3 and is
> 86% full of data, plus sda14, which is identically partitioned but
> virgin space on a brand new HD replacing the old sda. I've already
> rebuilt /dev/md[0-7]. sdb14 was originally created using the excess of
> sdb's size over the size of the old sda.
>
> On 11.4, I tried using YaST2 to do this, but it won't let me
> initialize md7 with only the old partition, and I see no clear
> indication that my data on sdb14 won't be eradicated by initially
> combining it with sda14 to create md7.
[snip]
> Without really thinking about the --create results, I did:
>
> mdadm --build --verbose --force -n1 /dev/md7 --level=1 /dev/sdb14
>
> The result was "mdadm: array /dev/md7 built and started."
>
> Fsck says /dev/md7 is clean. Mounted, things seemed to be OK, but
> /proc/mdstat shows differently for md7 than for others:
>
> md7 : active raid1 sdb14[0]
>        156280288 blocks super non-persistent [1/1] [U]

One issue might be that sdb14 doesn't have a superblock. --build is some
sort of special option that doesn't create persistent superblocks, I
don't think I've ever used it. 



-- 
Per Jessen, Zürich (6.0°C)

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