Bug#656899: mdadm: sending ioctl 1261 to a partition warnings,

[Ben Hutchings <ben@decadent.org.uk>]

On Wed, Mar 14, 2012 at 11:02:04PM +0100, Patryk Dawidziuk wrote:
> same here. Fresh Squeeze 6.0.4 install. LVM over Raid1. 
> System stable. 
[...]
> additionaly update-grub borks about unknown LVM metadata headers, but this and ioctl 1261 seem somehow connected. 
> 
> root@asd:~# update-grub
> error: unknown LVM metadata header.
[...]

That doesn't look good, but it may be unrelated.  Can you explain
how the RAID and LVM are configured?  Is /boot within an LV?

Ben.

-- 
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
                                                              - Albert Camus