[linux-lvm] Confusion mounting old LVs on new system.
borelli at cox.net
borelli at cox.net
Thu Apr 14 16:58:12 UTC 2011
Something that I thought would be simple turned out ta not ta be simple
at all. What's new.
Anyway, the outputs:
# df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 20G 9.2G 9.6G 49% /
devtmpfs 1.9G 288K 1.9G 1% /dev
tmpfs 2.0G 1.3M 2.0G 1% /dev/shm
/dev/mapper/system-root
20G 9.2G 9.6G 49% /
/dev/sda1 152M 30M 114M 21% /boot
/dev/mapper/system-home
437G 14G 402G 4% /home
# /sbin/fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009017e
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 321535 159744 83 Linux
/dev/sda2 321536 976773119 488225792 8e Linux LVM
Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0006e47a
Device Boot Start End Blocks Id System
/dev/sdb1 * 63 144584 72261 83 Linux
/dev/sdb2 144585 31599854 15727635 8e Linux LVM
/dev/sdb3 31599855 1953520064 960960105 8e Linux LVM
Disk /dev/mapper/system-home: 476.3 GB, 476317745152 bytes
255 heads, 63 sectors/track, 57909 cylinders, total 930308096 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/system-home doesn't contain a valid partition table
Disk /dev/mapper/system-root: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/system-root doesn't contain a valid partition table
Disk /dev/mapper/system-swap: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders, total 4194304 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/system-swap doesn't contain a valid partition table
Disk /dev/mapper/OLDhdd-OLD: 984.0 GB, 984021467136 bytes
255 heads, 63 sectors/track, 119633 cylinders, total 1921916928 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/OLDhdd-OLD doesn't contain a valid partition table
# cat /proc/partitions
major minor #blocks name
8 0 488386584 sda
8 1 159744 sda1
8 2 488225792 sda2
8 16 976762584 sdb
8 17 72261 sdb1
8 18 15727635 sdb2
8 19 960960105 sdb3
253 0 465154048 dm-0
253 1 20971520 dm-1
253 2 2097152 dm-2
253 3 960958464 dm-3
# cat /etc/fstab
/dev/system/swap swap swap defaults
0 0
/dev/system/root / ext4 acl,user_xattr
1 1
/dev/disk/by-id/ata-WDC_WD5000AADS-00S9B0_WD-WCAV9A100021-part1 /boot
ext4 acl,user_xattr 1 2
/dev/system/home /home ext4 acl,user_xattr
1 2
proc /proc proc defaults
0 0
sysfs /sys sysfs noauto
0 0
debugfs /sys/kernel/debug debugfs noauto
0 0
usbfs /proc/bus/usb usbfs noauto
0 0
devpts /dev/pts devpts mode=0620,gid=5
0 0
# mount
devtmpfs on /dev type devtmpfs
(rw,relatime,size=1985000k,nr_inodes=496250,mode=755)
tmpfs on /dev/shm type tmpfs (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000)
/dev/mapper/system-root on / type ext4
(rw,relatime,user_xattr,acl,barrier=1,data=ordered)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
/dev/sda1 on /boot type ext4
(rw,relatime,user_xattr,acl,barrier=1,data=ordered)
/dev/mapper/system-home on /home type ext4
(rw,relatime,user_xattr,acl,barrier=1,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,relatime)
nfsd on /proc/fs/nfsd type nfsd (rw,relatime)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
gvfs-fuse-daemon on /home/borelli/.gvfs type fuse.gvfs-fuse-daemon
(rw,nosuid,nodev,relatime,user_id=1000,group_id=100)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
# pvscan
/dev/sdc: open failed: No medium found
/dev/sdc: open failed: No medium found
Couldn't find device with uuid
CSGXpY-YEJ7-4qsf-KtdC-ft1u-IOaN-QSecuY.
PV /dev/sdb3 VG OLDhdd lvm2 [916.44 GiB / 0 free]
PV /dev/sdb2 VG system lvm2 [15.00 GiB / 0 free]
PV unknown device VG system lvm2 [916.44 GiB / 0 free]
PV /dev/sda2 VG system lvm2 [465.61 GiB / 0 free]
Total: 4 [2.26 TiB] / in use: 4 [2.26 TiB] / in no VG: 0 [0 ]
# vgscan
Reading all physical volumes. This may take a while...
/dev/sdc: open failed: No medium found
Found volume group "OLDhdd" using metadata type lvm2
/dev/sdc: open failed: No medium found
Couldn't find device with uuid
CSGXpY-YEJ7-4qsf-KtdC-ft1u-IOaN-QSecuY.
Found volume group "system" using metadata type lvm2
Found volume group "system" using metadata type lvm2
# lvscan
ACTIVE '/dev/OLDhdd/OLD' [916.44 GiB] inherit
/dev/sdc: open failed: No medium found
Couldn't find device with uuid
CSGXpY-YEJ7-4qsf-KtdC-ft1u-IOaN-QSecuY.
inactive '/dev/system/home' [895.00 GiB] inherit
inactive '/dev/system/root' [34.44 GiB] inherit
inactive '/dev/system/swap' [2.00 GiB] inherit
I thought I was doing a simple install to a new disk. I use openSUSE and
I thougt that I could install with the old disk unplugged then plug in
the old disk and boot the new system then access the old home partition
to retrieve my data, settings, etc.
The Partitoiner in Yast tells me that it will not mount a partition with
unknown or non-existent file system. I'm pretty sure the filesystem is
still there and I want to be careful to keep it intact. I'm not
practiced enough to go it on my own.
/sda is my new disk 500 Gib it is working correctly as far as I can
tell.
/sdb is my old disk and /sdb3 is the partition I want to mount.
in pvscan there is a mistake where there is only 1.5 Tib disk space in
my machine.
I used Yast Partitioner to change the Volume Group names I think.
I'm still a little unclear about the distinction between PVs and LVs and
VGs, but I'm starting to get it.
I'm paranoid to try anything else lest I lose my data.
Anyway, whatever help I can get would be greatly appreciated.
Thanks,
AARON
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