[linux-lvm] unable to create physical volume

[linux-lvm] unable to create physical volume

[rich turner]

i am using 4 etherdrives that are block devices and present in the /dev
directory as:
brw-rw----  1 root root 152,  0 Nov  5 16:34 /dev/etherd/e0.0
brw-rw----  1 root root 152, 16 Nov  5 16:34 /dev/etherd/e0.1
brw-rw----  1 root root 152, 32 Nov  5 16:34 /dev/etherd/e0.2
brw-rw----  1 root root 152, 48 Nov  5 16:34 /dev/etherd/e0.3

when i try to create a physical volume out of one of them:
[root@redhat proc]# pvcreate /dev/etherd/e0.1
  /dev/etherd/e0.1: Couldn't find device.

when i scan for available disks with "lvmdiskscan" these disks do not
display.

it looks like a filter problem within lvm.conf but i have made some
changes and it doesnt seem to work. these are the lines in my lvm.conf
file that i believe are responsible for finding block devices:
scan = [ "/dev" ]
filter = [ "a/.*/" ] (all other filters are commented out)

not sure if it helps but in /sys/block i can see entries like this:
[root@redhat block]# ls -l /sys/block/etherd\!e0.0/
total 0
-r--r--r--  1 root root 4096 Nov  5 16:35 dev
drwxr-xr-x  3 root root    0 Nov  5 16:35 queue
-r--r--r--  1 root root 4096 Nov  5 16:35 range
-r--r--r--  1 root root 4096 Nov  5 16:35 size
-r--r--r--  1 root root 4096 Nov  5 16:35 stat

Re: [linux-lvm] unable to create physical volume

[Alasdair G Kergon]

On Fri, Nov 05, 2004 at 10:16:13AM -0800, rich turner wrote:
> [root@redhat proc]# pvcreate /dev/etherd/e0.1
>   /dev/etherd/e0.1: Couldn't find device.
 
Does 'cat /proc/devices' have a special entry for them?

If so, then you'll need to update the 'types' line in the
config file to include them.

Alasdair
-- 
agk@redhat.com

Re: [linux-lvm] unable to create physical volume

[rich turner]

it does have a special entry in /proc/devices -> aoe
(ata-over-ethernet). added this type in lvm.conf and BINGO. thanks for
the help.

On Fri, 2004-11-05 at 11:19, Alasdair G Kergon wrote:
> On Fri, Nov 05, 2004 at 10:16:13AM -0800, rich turner wrote:
> > [root@redhat proc]# pvcreate /dev/etherd/e0.1
> >   /dev/etherd/e0.1: Couldn't find device.
>  
> Does 'cat /proc/devices' have a special entry for them?
> 
> If so, then you'll need to update the 'types' line in the
> config file to include them.
> 
> Alasdair