On Wed, 1 Nov 2006, Jonathan E Brassow wrote:
> You can certainly try an 'lvremove maingroup/dvd'. It seems to me that
> the logical volume is in the metadata (you can look for it in
> /etc/lvm/backup/maingroup), but for some reason it is not able to
> complete the load of that device into device-mapper. Because it only
> partially succeeds, it is giving you a device with no table... After
> doing the 'lvremove' you may need to also do a 'dmsetup remove
> maingroup-dvd'. Once completely removed, you could try your 'lvcreate'
> again.
I took a look in /etc/lvm/backup/maingroup. Again keeping in mind
that I don't know much about LVM, it looks to me like the 'gen-website'
and 'dvd' LVs are overlapping somehow. Assuming that's correct, I'm still
reluctant to try any 'remove' commands because I don't want to destroy the
data on the gen-website LV. So once again I'll await further replies. :)
gen-website {
id = "GhsR38-lmVZ-5gyN-fbt3-RWJv-f9rF-25aqpy"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 3840 # 15 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv5", 0
]
}
}
dvd {
id = "E2VpR0-rfCr-PA4r-Mrtz-50au-2s5T-kGTP5E"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 3840 # 15 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv5", 3840
]
}
}
> I talked to someone about this and they said that it could be a kernel
> device-mapper/user-space device-mapper mismatch issue. I'm not sure I
> understand that logic, given that you are able to load other devices of
> the same target type (i.e. linear). Perhaps that person would like to
> speak up here?
Here's a repeat of the version info I posted earlier. I'm not
sure if this is reporting kernel or user-space info (or both), and I don't
see any more version info under /proc/ ...
# lvm version
LVM version: 2.02.06 (2006-05-12)
Library version: 1.02.07 (2006-05-11)
Driver version: 4.4.0
> P.S. Are you always getting the 'cdrom' error? You may wish to change
> the filter option to exclude the cdrom device. To do that, change the
> "filter" line in /etc/lvm/lvm.conf to:
> filter = [ "r|/dev/cdrom|" ]
Yes, thanks for that (I recently added a new dvd burner and hadn't
had a chance to make that change yet). Speaking of, any chance that such
a hardware change might have anything to do with this problem? (It may
have changed device names for some of the pvs; I don't remember for sure.)
----------------------
Matt McHenry
http://www.speakeasy.org/~jerith/
jerith@speakeasy.org
be052@scn.org
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