Bug#354733: lvm2 doesn't recognize second volume group after update

[Berthold Cogel]

Bastian Blank schrieb:
> On Tue, Feb 28, 2006 at 06:45:28PM +0100, Berthold Cogel wrote:
> 
>>I've attached the output for both versions. I can see the symptom
>>without rebooting the system.
> 
> 
> Please read NEWS.Debian.
> 
> The output for 2.02.02 shows:
> | #filters/filter-md.c:39         /dev/hdg1: Skipping md component device
> 
> Bastian
> 

Hmmm. As far as I remember /dev/hdg1 never was a component device
before. Changing md_componnent_detection to 0 solves the problem.

/dev/hdg is an IDE harddisk connected to one of these onboard Promise
IDE RAID controllers. It is configured as simple IDE disk. I've
configured the system two years ago for LVM with a 2.4 kernel. I've
switched to kernel 2.6.x about a year ago.

Why does the md_componnent_detection setting affect my system?

In case of such a policy change, the user should get a warning during
the update process.

Regards
Berthold Cogel