[linux-lvm] "umount" LVM stuff

[David Corbin]

Heinz J . Mauelshagen wrote:

>Following this thread it kind of looks like you worked around
>using LVM commands (i.e. removed a VG w/o using lvremove + vgremove).
>
>If so, not a good idea :(
>  
>
Well, not to my knowledge I didn't.   But my knowledge of LVM is very 
tiny.  All I remember doing was "vgchange -a n".

>What does pvscan list ?
>  
>
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- ACTIVE   PV "/dev/md0" of VG "vg0" [109.77 GB / 109.77 GB free]
pvscan -- total: 1 [109.78 GB] / in use: 1 [109.78 GB] / in no VG: 0 [0]

>What does vgck say ?
>
vgck -- VGDA of "vg0" in lvmtab is consistent
vgck -- VGDA of "vg0" on physical volume is consistent

>
>On Mon, Feb 24, 2003 at 07:00:33AM -0500, David Corbin wrote:
>  
>
>>Goetz Bock wrote:
>>
>>    
>>
>>>On Mon, Feb 24 '03 at 02:15, Goetz Bock wrote:
>>> 
>>>
>>>      
>>>
>>>>>Attempts to access the logical volume I used to fail. 
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>You have disabled it, it's gone. 
>>>>   
>>>>
>>>>        
>>>>
>>>Don't panik :->
>>>
>>>your LVM will reappear, once you enable it again (vgchange -a y)
>>>still, read some docs.
>>> 
>>>
>>>      
>>>
>>I have read some docs.  I've spent hours combing the Net for the 
>>answers, without success.
>>
>>I *had* a working system.  But, I use the LVM commands so rarely, I can 
>>never repeat what I did (notes or not).
>>
>>piano:/home/dcorbin# sh -x /etc/init.d/lvm start
>>+ modprobe lvm
>>+ modprobe lvm-mod
>>+ '[' -e /proc/lvm ']'
>>+ '[' -e /etc/lvmtab ']'
>>+ '[' -x /sbin/vgscan ']'
>>+ echo 'Setting up LVM Volume Groups...'
>>Setting up LVM Volume Groups...
>>+ /sbin/vgscan --verbose
>>+ /sbin/vgchange -a y --verbose
>>
>>piano:/home/dcorbin# mount /data
>>mount: special device /dev/vg0/data does not exist
>>
>>The reason you hear "panic" in my typing is the last line. :)
>>----
>>Fundamentally, I'm building a critical data file server.  LVM has caused 
>>me enough problems and delays, that I'm about ready to bypass it, saying 
>>it is putting my data at risk.  Feel free to convince me otherwise.
>>
>>Thanks
>>David
>>
>>
>>_______________________________________________
>>linux-lvm mailing list
>>linux-lvm at sistina.com
>>http://lists.sistina.com/mailman/listinfo/linux-lvm
>>read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>>    
>>
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>  
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