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Go Back   Linux Archive > Redhat > Device-mapper Development

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Old 08-14-2010, 03:54 PM
Alasdair G Kergon
Default linux-2.6.35+ causes LVM to fail with " device-mapper: version ioctl failed: Inappropriate ioctl for device"

On Sat, Aug 14, 2010 at 02:01:47AM +0800, Jeff Chua wrote:
> It seems one of these commits in
> 8357422d4bf33bc2c35884d4016c3fc9efbbc1d2 is causing LVM2
> (LVM2.2.02.72) to fail.

Did you (partially) bisect that or are you just guessing?
The only one there possibly relevant is 7e507eb6432afdd798d4c6dccf949b8c43ef151c.

> Previously good logical volumes cannot be mounted anymore, and new one
> cannot be created. All failed with the error ...
> "device-mapper: version ioctl failed: Inappropriate ioctl for device"

What distribution? What version of udev package?
'lvm version' output?
Provide long listing of /dev/mapper and any dm/lvm devices in /dev.
Add -vvvv to your lvm command for better clues.

> Is there a new LVM2 for this new dm ioctl or the dm is not right?
There's no new dm ioctl.


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