[dm-devel] fdisk on a multipath device fails kernel partition re-read

Kevin Foote kevin.foote at gmail.com
Fri Sep 28 20:32:55 UTC 2007


I alwase use the entire disk .. no partitions, and I usually do mkfs on the
underlying /dev/sdX device before
I bother with multipath..
Then I just use the /dev/mapper entries for  actual mounts .. the
underlying FS is already there.
just my .02

mkfs.ext3 -F /dev/sdX

On 9/28/07, David Strand <dpstrand at gmail.com> wrote:
>
> When I perform an fdisk or sfdisk on a /dev/mapper/ multipath device I
> get a warning about it failing to re-read the partition information.
> With fdisk it warns that I'll need to reboot before using the device,
> with sfdisk it just complains about the ioctl that failed:
>
> Re-reading the partition table ...
> BLKRRPART: Invalid argument
>
> Is it possible I have something configured wrong? Or is this a problem
> with the way /dev/mapper nodes work? I get the same result when using
> /dev/dm-* nodes. With the raw device nodes such as /dev/sd* it works
> ok.
>
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>



-- 
:wq!
kevin.foote
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