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LV's have "disapeared"

linux-lvm Cristian Livadaru 2 participants 3 messages Jun 30, 2006

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#0 lore raw

I have created some new lv's for some tests.
What I did was based on this howto:

http://www.tldp.org/HOWTO/LVM-HOWTO/recipethreescsi.html

pvcreate /dev/hdk
pvcreate /dev/hdi

vgcreate vhostvg /dev/hdk /dev/hdi

lvcreate -L1G -nvm01lv vhostvg
ok and here I thinkg I made a big mistake!
since I had no partitions on my disks and I assumed that I needed one so that it matches the LVM that was created by debian automaticaly I created on both disks a partition and changed the type to 8e Linux LVM. I actualy worked with the lv's and everything is ok ( except my speed problem but this is a other topic )
now after a rebbot, I only see the lv created by debian, not the one that I kind of screwed up with my partitioning.

Is there a simple way to recover it? It's not that important that I would wast to much time with it, it was just for testing anyway and I could recreate them.

regards, Cristian Livadaru
--
http://livadaru.net

#1 lore raw
Quoted 20 lines · Cristian Livadaru

I have created some new lv's for some tests.
What I did was based on this howto:

http://www.tldp.org/HOWTO/LVM-HOWTO/recipethreescsi.html

pvcreate /dev/hdk
pvcreate /dev/hdi

vgcreate vhostvg /dev/hdk /dev/hdi

lvcreate -L1G -nvm01lv vhostvg
ok and here I thinkg I made a big mistake!
since I had no partitions on my disks and I assumed that I needed one so that it matches the LVM that was created by debian automaticaly I created on both disks a partition and changed the type to 8e Linux LVM. I actualy worked with the lv's and everything is ok ( except my speed problem but this is a other topic )
now after a rebbot, I only see the lv created by debian, not the one that I kind of screwed up with my partitioning.

Quoted 3 lines

Is there a simple way to recover it? It's not that important that I would wast to much time with it, it was just for testing anyway and I could recreate them.

You created the partitions, but as long as you did not write any data to the created partition, nothing bad happened so far. Just delete the partition again. The partition table resides in the first sector of the disk, which is fortunately unused by LVM.

Dieter.

#2 lore raw
Quoted 21 lines · Dieter St?ken
Quoted 20 lines · Cristian Livadaru

I have created some new lv's for some tests.
What I did was based on this howto:

http://www.tldp.org/HOWTO/LVM-HOWTO/recipethreescsi.html

pvcreate /dev/hdk
pvcreate /dev/hdi

vgcreate vhostvg /dev/hdk /dev/hdi

lvcreate -L1G -nvm01lv vhostvg
ok and here I thinkg I made a big mistake!
since I had no partitions on my disks and I assumed that I needed one so that it matches the LVM that was created by debian automaticaly I created on both disks a partition and changed the type to 8e Linux LVM. I actualy worked with the lv's and everything is ok ( except my speed problem but this is a other topic )
now after a rebbot, I only see the lv created by debian, not the one that I kind of screwed up with my partitioning.

Quoted 8 lines
Quoted 3 lines

Is there a simple way to recover it? It's not that important that I would wast to much time with it, it was just for testing anyway and I could recreate them.

You created the partitions, but as long as you did not write any data to the created partition, nothing bad happened so far. Just delete the partition again. The partition table resides in the first sector of the disk, which is fortunately unused by LVM.

I already did a lot on the partition.
thanks anyway but the data on that lvm wasn't that important. I just reinstalled everything.

Cris