[root@frodo ~]# sfdisk -l /dev/sdc
Disk /dev/sdc: 38913 cylinders, 255 heads, 63 sectors/track Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System/dev/sdc1 * 0+ 254 255- 2048256 c W95 FAT32 (LBA) /dev/sdc2 255 38912 38658 310520385 83 Linux /dev/sdc3 0 - 0 0 0 Empty /dev/sdc4 0 - 0 0 0 Empty
** I note that the file system on /dev/sdc2 is 'Linux' and not 'Linux LVM'. This is what I got, eventhough I created it with parted /dev/sdc mkpart ...
There's your problem I think. In my first post, I *guessed* that type needed to be 86. I'm sure 83 is NG - that's a standard Linux part. With fdisk and it's variations, there is a command to change partition type. Do that and select the one that shows LVM 986 I think). Write and (possibly) reboot or sfdisk -R /dev/sdc (which re-reads the partition info. If it shows *LVM* as the type, do you pvcreate, vgcreate, etc. and I bet you are OK.
Had to wait until I came back to work and could reboot the machine. Using William's instructions, modulus using 8e as Matt Hyclak pointed out, seems to solve the problem. Everything seems to work fine: lvcreation, writing files, etc.
The only odd thing is in regard to the output of sfdisk. Note the warning when 'sfdisk -l' is invoked without a device argument. According to the man page this is a legitimate call that should produce output similar in nature to 'fdisk -l' (which works as expected).
<man> The second type of invocation: sfdisk -l [options] device will list the partitions on this device. If the device argument is omitted, the partitions on all hard disks are listed. % sfdisk -l /dev/hdc </man>
I am quite sure that this is an 'sfdisk' issue unrelated to the problem I needed to solve. But I would like to be careful before I declare [RESOLVED].
Perhaps I will try sfdisk with a different machine to see if there is a difference.
Thanks, Itay
<transcript> [root@frodo ~]# sfdisk -l
Disk /dev/sda: 30401 cylinders, 255 heads, 63 sectors/track Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System /dev/sda1 * 0+ 12 13- 104391 83 Linux /dev/sda2 13 30400 30388 244091610 8e Linux LVM /dev/sda3 0 - 0 0 0 Empty /dev/sda4 0 - 0 0 0 Empty Warning: start=63 - this looks like a partition rather than the entire disk. Using fdisk on it is probably meaningless. [Use the --force option if you really want this]
[root@frodo ~]# sfdisk -l /dev/sda Disk /dev/sda: 30401 cylinders, 255 heads, 63 sectors/track Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System /dev/sda1 * 0+ 12 13- 104391 83 Linux /dev/sda2 13 30400 30388 244091610 8e Linux LVM /dev/sda3 0 - 0 0 0 Empty /dev/sda4 0 - 0 0 0 Empty
[root@frodo ~]# sfdisk -l /dev/sdb Disk /dev/sdb: 38913 cylinders, 255 heads, 63 sectors/track Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System /dev/sdb1 * 0+ 254 255- 2048256 c W95 FAT32 (LBA) /dev/sdb2 255 38912 38658 310520385 8e Linux LVM /dev/sdb3 0 - 0 0 0 Empty /dev/sdb4 0 - 0 0 0 Empty </transcript>