[dm-devel] device-mapper: device /dev/hdc too small for target

[Thomas Berton]

Hello,
I'm encountering some problems with device-mapper when migrating my lvm 
system to a new debian system.
I must say I had to play around with pvcreate and vgcfgrestore to get 
/dev/hdb recognized again on the new system but after fixing that issue 
I'm stuck with following problem:
Booting the new system with the lvm disks it seems that the 
device-mapper is having troubles putting together the lvm device:

output from dmesg:
device-mapper: 4.1.0-ioctl (2003-12-10) initialised: dm at uk.sistina.com
device-mapper: device /dev/hdc too small for target
device-mapper: : dm-linear: Device lookup failed

device-mapper: error adding target to table

Starting the lvm service gives the following:
storage:~# /etc/init.d/lvm start
Setting up LVM Volume Groups...
 Reading all physical volumes.  This may take a while...
 Found volume group "storage" using metadata type lvm2
 /dev/storage: opendir failed: No such file or directory
 device-mapper ioctl cmd 9 failed: Invalid argument
 Couldn't load device 'storage-storage1'.
 1 logical volume(s) in volume group "storage" now active
storage:~#

Nevertheless other lvm commands seem to display correct information 
about the lvm.
Below is the output from pvscan, lvscan, lvmdiskscan, pvdisplay and 
vgdisplay.
The lvm is appearing in the /dev/mapper folder, but no link is made in 
the /dev folder btw.
Mounting the lvm fails, gives the error of bad superblock (ext3 
filesystem).
The lvm has been created using the full disks and not working on 
partitions.
I'm hoping someone on this list can help me out or give me some pointers 
on how to continue and getting the disks right and making my lvm 
mountable again.
Thx in advance,
Thomas.

storage:~# pvscan
 PV /dev/hda   VG storage   lvm2 [279.46 GB / 0    free]
 PV /dev/hdc   VG storage   lvm2 [189.92 GB / 0    free]
 PV /dev/hdb   VG storage   lvm2 [279.46 GB / 0    free]
 Total: 3 [748.84 GB] / in use: 3 [748.84 GB] / in no VG: 0 [0   ]
storage:~#

storage:~# lvscan
 ACTIVE            '/dev/storage/storage1' [748.84 GB] inherit
storage:~#

storage:~# lvmdiskscan
 /dev/hda  [      279.46 GB] LVM physical volume
 /dev/hdc  [      189.92 GB] LVM physical volume
 /dev/sda1 [       18.63 GB]
 /dev/sda2 [      957.00 MB]
 /dev/sda3 [        4.66 GB]
 /dev/sda5 [      956.97 MB]
 /dev/sda6 [        2.80 GB]
 /dev/hdb  [      279.46 GB] LVM physical volume
 0 disks
 5 partitions
 3 LVM physical volume whole disks
 0 LVM physical volumes
storage:~#

storage:~# pvdisplay
 --- Physical volume ---
 PV Name               /dev/hda
 VG Name               storage
 PV Size               279.46 GB / not usable 0
 Allocatable           yes (but full)
 PE Size (KByte)       4096
 Total PE              71541
 Free PE               0
 Allocated PE          71541
 PV UUID               ZDOYsq-1rGU-bngq-QVZu-DqvG-I7AO-r7Rnl5

 --- Physical volume ---
 PV Name               /dev/hdc
 VG Name               storage
 PV Size               189.92 GB / not usable 0
 Allocatable           yes (but full)
 PE Size (KByte)       4096
 Total PE              48620
 Free PE               0
 Allocated PE          48620
 PV UUID               VT7Lkj-n4V1-G8mV-a6GF-kspp-Zs61-3YzXD3

 --- Physical volume ---
 PV Name               /dev/hdb
 VG Name               storage
 PV Size               279.46 GB / not usable 0
 Allocatable           yes (but full)
 PE Size (KByte)       4096
 Total PE              71541
 Free PE               0
 Allocated PE          71541
 PV UUID               jJqtAX-XxMz-nIEC-2ast-7y40-XPFG-rN0Rzz
storage:~#

storage:~# vgdisplay
 --- Volume group ---
 VG Name               storage
 System ID
 Format                lvm2
 Metadata Areas        3
 Metadata Sequence No  12
 VG Access             read/write
 VG Status             resizable
 MAX LV                0
 Cur LV                1
 Open LV               0
 Max PV                0
 Cur PV                3
 Act PV                3
 VG Size               748.84 GB
 PE Size               4.00 MB
 Total PE              191702
 Alloc PE / Size       191702 / 748.84 GB
 Free  PE / Size       0 / 0
 VG UUID               59Yxut-UcZa-MBUS-KH8Y-5wZP-Eh1x-1E33Wl

storage:~#