[linux-lvm] cant find lvm volumes at boot
Fredrik Skog
fredrik.skog at rodang.se
Sat Jun 24 18:11:47 UTC 2006
hi all,
I've been running LVM2 for a while and never had any problems with it, so my knowledge is a bit limited because i've never had to fiddle with it.
It started with me wanting to change my hda drive cuz the old one was making alot of noice.
It's partitioning sheme is as follows
/dev/hda1 [ 101.94 MB] /boot
/dev/hda2 [ 1.87 GB] /
/dev/hda3 [ 23.00 GB] LVM physical volume
/dev/hda4 [ 533.90 MB] SWAP
--- Physical volume ---
PV Name /dev/hda3
VG Name vgsys
PV Size 23.00 GB / not usable 0
Allocatable yes (but full)
PE Size (KByte) 4096
Total PE 5888
Free PE 0
Allocated PE 5888
PV UUID SegkSC-Thbb-DqRg-LSoA-tN0F-WmFp-K7CPCO
--- Logical volume ---
LV Name /dev/vgsys/usr
VG Name vgsys
LV UUID cYrDRH-neMm-PwCZ-2Dlo-njJm-mBHs-NPZlu4
LV Write Access read/write
LV Status available
# open 1
LV Size 7.00 GB
Current LE 1792
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:0
--- Logical volume ---
LV Name /dev/vgsys/home
VG Name vgsys
LV UUID OX1Pkm-p6Vc-q6SB-9nxm-PRMl-TM1z-h5bcIc
LV Write Access read/write
LV Status available
# open 1
LV Size 4.00 GB
Current LE 1024
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:1
--- Logical volume ---
LV Name /dev/vgsys/opt
VG Name vgsys
LV UUID GlQ5wV-ZzUu-51LW-okn6-82UV-9SFX-weiScV
LV Write Access read/write
LV Status available
# open 1
LV Size 5.00 GB
Current LE 1280
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:2
--- Logical volume ---
LV Name /dev/vgsys/var
VG Name vgsys
LV UUID 1VvzOf-DLz1-GMp5-Xj24-r9Mp-yaOy-0t2yLw
LV Write Access read/write
LV Status available
# open 1
LV Size 5.00 GB
Current LE 1280
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:3
--- Logical volume ---
LV Name /dev/vgsys/tmp
VG Name vgsys
LV UUID BAIl2N-5gVg-RzUZ-3IqL-L0D5-JiAk-bO2smA
LV Write Access read/write
LV Status available
# open 1
LV Size 2.00 GB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:4
Then i added a new 80GB drive at hdc and run
dd if=/dev/hda of=/dev/hdc
then halt -h
changed disks and booted with the new 80GB disk as hda...
now the strange thing...it cant find the logical volumes at boot, so i end up with a very crippled system. if i list the lvm volumes i see that they are there, but inactive at boot. i can reactivate them and mount them manually...but then at reboot the same thing again.
what have happened?
I even tried to change back to the old drive, and i was certain it would boot right up...but the exact same thing occured. GAAAH! How can the source drive be altered? I don't get it.
Any ideas?
thanks!
/Fredrik
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