[linux-lvm] Setup for RAID1 with LVM

[yves.alloyer]

Sorry for the late answer, I was off line for some time. Sorry if you get
this one twice Ferenc.
I ran into a very similar issue some time ago using stock 1.0.1rc4 (not
CVS).
I tried zeroing the first block of the MD device... it didn't help.
This was discussed and solved in the "[linux-lvm] pvcreate fails on a
software RAID metadisk" thread.
The patch that was generated at that time and which made it into CVS was:
--- tools/lib/lvm_check_partitioned_dev.c.bluca	Thu Aug 23 07:51:53 2001
+++ tools/lib/lvm_check_partitioned_dev.c	Fri Oct  5 21:18:51 2001
@@ -55,6 +55,8 @@
 	switch (lvm_get_device_type(st_rdev)) {
 	case LVM_DEVICE_TYPE_INVALID:
 	    break;
+	case LVM_DEVICE_TYPE_MD:
+	    break;
 	default:
 	    ret = TRUE;
 	}

--

Yves
> -----Original Message-----
> From: linux-lvm-admin at sistina.com [mailto:linux-lvm-admin at sistina.com]On
> Behalf Of Csuk, Ferenc
> Sent: Thursday, November 15, 2001 4:58 PM
> To: 'Mauelshagen at Sistina.com'
> Cc: 'linux-lvm at sistina.com'; 'jens.bruckmann at suse.de'
> Subject: [linux-lvm] Setup for RAID1 with LVM
>
>
> Dear Heinz,
>
> I have read your archive discussion on this topic and your suggested
> solution for it, see below. Now we would like to do it as well,
> but when we
> start pvcreate /dev/md0 we get the following error: invalid partition type
> 0x83 for /dev/md0" (must be 0x8e). Unfortunatelly we can´t change it using
> fdisk.
>
> What was the solution for it in your case?
>
> Thank you in advance.
>
> Regards,
> Ferenc
>
>
>
> > - create a md0 RAID1 device with your 2 disks (mirror, no use of LVM)
> >   - set the parttion ID to RAID autodetect (0xfd)
> >   - edit /etc/raidtab (see RAID Howto)
> >   - mkraid /dev/md0
> > - install LVM utilities (0.9.1beta3)
> > - pvcreate /dev/md0
> > - vgcreate -n BGNAME /dev/md0
> > - lvcreate <some logical volume>
>
>
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>