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Recovering SME Server with lvm drives (view source)

Revision as of 10:31, 29 March 2010

1,440 bytes added ,  10:31, 29 March 2010
another method to recover data on lvm
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==Recovering SME Server with lvm drives==
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==Method A==
 
Let’s try starting the raid and see what we get:
 
Let’s try starting the raid and see what we get:
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  [..]
 
  [..]
 
  user@user-desktop:~$
 
  user@user-desktop:~$
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==Method B==
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based on http://www.linuxjournal.com/article/8874?page=0,0
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on ubuntu (non lvm), install mdadm and lvm2, attach server drive,
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find UUID's
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$ sudo mdadm --examine --scan  /dev/sdb1 /dev/sdb2
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ARRAY /dev/md2 level=raid1 num-devices=2 UUID=895293be:9cfa7672:f1761508:386417bc
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ARRAY /dev/md1 level=raid1 num-devices=2 UUID=10573599:841f46aa:4c068816:67364324
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add ARRAY lines to mdadm.conf
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$ cat /etc/mdadm/mdadm.conf
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# mdadm.conf
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#
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# Please refer to mdadm.conf(5) for information about this file.
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#
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# by default, scan all partitions (/proc/partitions) for MD superblocks.
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# alternatively, specify devices to scan, using wildcards if desired.
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DEVICE partitions
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ARRAY /dev/md2 level=raid1 num-devices=2 UUID=895293be:9cfa7672:f1761508:386417bc
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ARRAY /dev/md1 level=raid1 num-devices=2 UUID=10573599:841f46aa:4c068816:67364324
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checking
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$  sudo pvscan
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  PV /dev/md2  VG main  lvm2 [148.94 GB / 64.00 MB free]
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  Total: 1 [148.94 GB] / in use: 1 [148.94 GB] / in no VG: 0 [0  ]
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checking
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$ sudo lvscan
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  ACTIVE            '/dev/main/root' [146.94 GB] inherit
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  ACTIVE            '/dev/main/swap' [1.94 GB] inherit
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mount, check and copy to safe location ...
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$ sudo mkdir /mnt/ga
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$ sudo mount /dev/main/root /mnt/ga
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$ sudo ls -la /mnt/ga/var/log/messages
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lrwxrwxrwx 1 root root 32 2010-03-24 18:00 /mnt/ga/var/log/messages -> /var/log/messages.20*
    
<noinclude>[[Category:Howto]]</noinclude>
 
<noinclude>[[Category:Howto]]</noinclude>
Retrieved from "https://wiki.koozali.org/Special:MobileDiff/14448"

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