----- Original Message -----
Sent: Wednesday, September 18, 2002 2:07
PM
Subject: [linux-lvm] Help! unable to
mount lv's - can't see why!
Hi,
I had 4 (ide) disks in an array (and 1 vg) of
which one (hde) broke. As I was not too sure of the stability of the system, I
decided to do a dd of the disk byte by byte to another identical disk. After
this was done (with loads of sector unreadable errors) I replaced the old
disk with the new disk, rebooted the system and by all standards all seems
well (see below):
Unfortunately, only the
/dev/tripserv_vol/docu will mount well!
/dev/tripserv_vol/pages gives the following
error:
# mount /dev/tripserv_vol/pages /c
mount: you
must specify the filesystem type
# mount /dev/tripserv_vol/pages /c -t
ext3
mount: wrong fs type, bad option, bad superblock on
/dev/tripserv_vol/pages,
or too many
mounted file systems
Anyone have any ideas why it won't
mount?!
Cheers,
Robin Edgar
#pvscan:
pvscan -- reading all physical volumes (this may
take a while...)
pvscan -- ACTIVE PV "/dev/hdg1" of VG
"tripserv_vol" [38.16 GB / 7.93 GB free]
pvscan -- ACTIVE PV
"/dev/hdh1" of VG "tripserv_vol" [38.16 GB / 8.01 GB free]
pvscan --
ACTIVE PV "/dev/hde1" of VG "tripserv_vol" [55.91 GB / 0
free]
pvscan -- ACTIVE PV "/dev/hdf1" of VG "tripserv_vol"
[55.91 GB / 3.37 GB free]
pvscan -- total: 4 [188.16 GB] / in use: 4
[188.16 GB] / in no VG: 0 [0]
(identical output to before changing the disks
around)
#pvdisplay /dev/hde1
--- Physical volume
---
PV
Name
/dev/hde1
VG
Name
tripserv_vol
PV
Size
55.92 GB [117266625 secs] / NOT usable 4.18 MB [LVM: 179
KB]
PV#
1
PV
Status
available
Allocatable
yes (but full)
Cur
LV
20
PE Size (KByte) 4096
Total
PE
14313
Free
PE
0
Allocated PE
14313
PV
UUID
KCIKwa-3lvx-k7bj-27ks-hGlI-oZRo-5q7CjM
(also identical)
#vgck -v
vgck -- locking logical volume
manager
vgck -- finding all volume group(s)
vgck -- checking volume
group name "tripserv_vol"
vgck -- checking existence of volume group
"tripserv_vol"
vgck -- reading volume group data for "tripserv_vol" from
lvmtab
vgck -- checking volume group consistency of "tripserv_vol" in
lvmtab
vgck -- VGDA of "tripserv_vol" in lvmtab is consistent
vgck --
reading volume group data for "tripserv_vol" from physical volume(s)
vgck
-- checking volume group consistency of "tripserv_vol" on physical
volumes
vgck -- VGDA of "tripserv_vol" on physical volumes is
consistent
vgck -- unlocking logical volume manager
# vgdisplay
--- Volume group ---
VG
Name
tripserv_vol
VG
Access
read/write
VG
Status
available/resizable
VG
#
0
MAX
LV
255
Cur
LV
22
Open
LV
1
MAX LV Size
255.99 GB
Max
PV
255
Cur
PV
4
Act
PV
4
VG
Size
188.13 GB
PE
Size
4 MB
Total
PE
48162
Alloc PE / Size 43220 / 168.83
GB
Free PE / Size 4942 / 19.30
GB
VG
UUID
KDiCWx-ae2w-oDnx-Hl5O-Amhd-fIM3-y51bIX
# vgscan -v
vgscan -- removing "/etc/lvmtab"
and "/etc/lvmtab.d"
vgscan -- creating empty "/etc/lvmtab" and
"/etc/lvmtab.d"
vgscan -- reading all physical volumes (this may take a
while...)
vgscan -- scanning for all active volume group(s) first
vgscan
-- found active volume group "tripserv_vol"
vgscan -- reading data of
volume group "tripserv_vol" from physical volume(s)
vgscan -- inserting
"tripserv_vol" into lvmtab
vgscan -- backing up volume group
"tripserv_vol"
vgscan -- checking volume group name
"tripserv_vol"
vgscan -- checking volume group consistency of
"tripserv_vol"
vgscan -- checking existence of "/etc/lvmtab.d"
vgscan --
storing volume group data of "tripserv_vol" in
"/etc/lvmtab.d/tripserv_vol.tmp"
vgscan -- storing physical volume data of
"tripserv_vol" in "/etc/lvmtab.d/tripserv_vol.tmp"
vgscan -- storing
logical volume data of volume group "tripserv_vol" in
"/etc/lvmtab.d/tripserv_vol.tmp"
vgscan -- renaming
"/etc/lvmtab.d/tripserv_vol.tmp" to "/etc/lvmtab.d/tripserv_vol"
vgscan --
removing special files and directory for volume group "tripserv_vol"
vgscan
-- creating directory and group character special file for
"tripserv_vol"
vgscan -- creating block device special files for
tripserv_vol
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully
created
vgscan -- WARNING: This program does not do a VGDA backup of your
volume group
#lvscan
lvscan -- ACTIVE Original
"/dev/tripserv_vol/docu" [512 MB] striped[4]
lvscan -- ACTIVE
Original "/dev/tripserv_vol/install" [10 GB] striped[4]
lvscan --
ACTIVE Original "/dev/tripserv_vol/pages" [20 GB]
striped[4]
lvscan --
ACTIVE
"/dev/tripserv_vol/gfx" [10 GB] striped[4]
lvscan --
ACTIVE
"/dev/tripserv_vol/sfx" [10 GB] striped[4]
lvscan --
ACTIVE
"/dev/tripserv_vol/people" [20 GB] striped[4]
lvscan -- ACTIVE
Original "/dev/tripserv_vol/dim" [2 GB] striped[4]
lvscan --
ACTIVE
"/dev/tripserv_vol/mp3" [20 GB] striped[4]
lvscan --
ACTIVE
"/dev/tripserv_vol/applications" [2 GB] striped[4]
lvscan --
ACTIVE Original "/dev/tripserv_vol/code" [512 MB]
striped[4]
lvscan --
ACTIVE
"/dev/tripserv_vol/dumpdir" [10 GB] striped[4]
lvscan -- ACTIVE
Original "/dev/tripserv_vol/homes" [10 GB] striped[4]
lvscan --
ACTIVE Original "/dev/tripserv_vol/info" [5 GB]
striped[4]
lvscan --
ACTIVE
"/dev/tripserv_vol/log" [252 MB] striped[3]
lvscan --
ACTIVE
"/dev/tripserv_vol/store" [608 MB] striped[4]
lvscan -- ACTIVE
Snapshot "/dev/tripserv_vol/docusnap" [492.19 MB] of
/dev/tripserv_vol/docu
lvscan -- ACTIVE Snapshot
"/dev/tripserv_vol/installsnap" [9.84 GB] of
/dev/tripserv_vol/install
lvscan -- ACTIVE Snapshot
"/dev/tripserv_vol/dimsnap" [1.97 GB] of /dev/tripserv_vol/dim
lvscan --
ACTIVE Snapshot "/dev/tripserv_vol/codesnap" [504 MB] of
/dev/tripserv_vol/code
lvscan -- ACTIVE Snapshot
"/dev/tripserv_vol/pagessnap" [19.69 GB] of /dev/tripserv_vol/pages
lvscan
-- ACTIVE Snapshot "/dev/tripserv_vol/infosnap" [4.92 GB] of
/dev/tripserv_vol/info
lvscan -- ACTIVE Snapshot
"/dev/tripserv_vol/homessnap" [9.84 GB] of /dev/tripserv_vol/homes
lvscan
-- 22 logical volumes with 168.08 GB total in 1 volume group
lvscan -- 22
active logical volumes
# lvdisplay /dev/tripserv_vol/docu
--- Logical
volume ---
LV
Name
/dev/tripserv_vol/docu
VG
Name
tripserv_vol
LV Write Access
read/write
LV snapshot status source
of
/dev/tripserv_vol/docusnap [active]
LV
Status
available
LV
#
1
#
open
1
LV
Size
512 MB
Current
LE
128
Allocated
LE
128
Stripes
4
Stripe size (KByte)
4
Allocation
next free
Read ahead sectors 120
Block
device
58:0
# lvdisplay /dev/tripserv_vol/people
---
Logical volume ---
LV
Name
/dev/tripserv_vol/people
VG
Name
tripserv_vol
LV Write Access
read/write
LV
Status
available
LV
#
6
#
open
0
LV
Size
20 GB
Current
LE
5120
Allocated
LE
5120
Stripes
4
Stripe size (KByte)
4
Allocation
next free
Read ahead sectors 120
Block
device
58:5
# lvdisplay /dev/tripserv_vol/pages
---
Logical volume ---
LV
Name
/dev/tripserv_vol/pages
VG
Name
tripserv_vol
LV Write Access
read/write
LV snapshot status source
of
/dev/tripserv_vol/pagessnap [active]
LV
Status
available
LV
#
3
#
open
0
LV
Size
20 GB
Current
LE
5120
Allocated
LE
5120
Stripes
4
Stripe size (KByte)
4
Allocation
next free
Read ahead sectors 120
Block
device
58:2
tripserv:/# lvdisplay
/dev/tripserv_vol/pagessnap
--- Logical volume ---
LV
Name
/dev/tripserv_vol/pagessnap
VG
Name
tripserv_vol
LV Write Access read
only
LV snapshot status active destination for
/dev/tripserv_vol/pages
LV
Status
available
LV
#
20
#
open
0
LV
Size
20 GB
Current
LE
5120
Allocated
LE
5120
snapshot chunk size 64 KB
Allocated to
snapshot 0.00% [0/19.69 GB]
Allocated to COW-table 320
MB
Stripes
4
Stripe size (KByte)
4
Allocation
next free
Read ahead sectors 120
Block
device
58:19
# lvdisplay /dev/tripserv_vol/docusnap
---
Logical volume ---
LV
Name
/dev/tripserv_vol/docusnap
VG
Name
tripserv_vol
LV Write Access read
only
LV snapshot status active destination for
/dev/tripserv_vol/docu
LV
Status
available
LV
#
16
#
open
0
LV
Size
512 MB
Current
LE
128
Allocated
LE 128
snapshot
chunk size 64 KB
Allocated to snapshot 0.05% [256
KB/492.19 MB]
Allocated to COW-table 7.81
MB
Stripes
4
Stripe size (KByte)
4
Allocation
next free
Read ahead sectors 120
Block
device
58:15
So it all looks good!
