>>>>> "Andy" == Andy Hawkins >>>>> "Re: Trouble LVM: pvcreate to usb disk managed by udev" >>>>> Wed, 4 Jan 2006 22:06:56 +0000 (UTC)
Andy> Hi, In article <[EMAIL PROTECTED]>,
Andy> John A. Martin<[EMAIL PROTECTED]> wrote:
>> As root:
>>
>> ,----[ pvcreate /dev/sdc ]
>> Device /dev/sdc not found.
>> `----
Andy> Doesn't this need to be done on a partition, rather than the
Andy> disk itself?
,----[ Excerpt: man PVCREATE ]
DESCRIPTION
pvcreate initializes PhysicalVolume for later use by the
Logical Volume Manager (LVM). Each PhysicalVolume can be a
disk partition, whole disk, meta device, or loopback file.
`----
,----[ Excerpt: LVM-HOWTO ]
11.1. Initializing disks or disk partitions
Before you can use a disk or disk partition as a physical volume you
will have to initialize it:
For entire disks:
* Run pvcreate on the disk:
# pvcreate /dev/hdb
This creates a volume group descriptor at the start of disk.
* If you get an error that LVM can't initialize a disk with a partition
table on it, first make sure that the disk you are operating on is the
correct one. If you are very sure that it is, run the following:
Warning DANGEROUS
The following commands will destroy the partition table on the
disk being operated on. Be very sure it is the correct disk.
# dd if=/dev/zero of=/dev/diskname bs=1k count=1
# blockdev --rereadpt /dev/diskname
`----
Maybe I misunderstand the above? I'm sure I misunderstand something!
jam
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