[linux-lvm] LVM on Mylex DAC 960 (Raid1)

grobe at gmx.de grobe at gmx.de
Fri May 23 14:05:02 UTC 2003

I know that this is a known problem, but I didn't find the 
solution so far, so I have to ask here now... 
I have some machines with Mylex-controllers that are to 
be used with RAID1s. As the controller supports only 
6 partitions (and fo other reasons, too) I wanted to use 
LVM on this. I have created a primary /boot, a /swap and 
a logical partition in an extended one that became type "LVM". 
I am doing all this in SuSE 8.1's installation routine (Yast). 
I have choosed a VG, put the PV into it, and created LVs for 
/, /usr, /var, /tmp, /home, however, when Yast is going to 
execute the steps choosen before, I get a failure by pvcreate 
(can't get device size of /dev/rd/c0d0p5). 
I know that the Mylex raidset appears in a somehow special 
device in the Linux devtree, but I am quite sure it is possible 
to put LVM on top of it - now I just wonder how to do this? 
Thank You, CU, Lars. 

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