> [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>
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