After a power failure, Ubuntu 10.04 Server hard drive is no longer bootable. I tried using
boot-repair but it couldn't locate an operating system.
I ran gdisk to verify where the lvm partition was and that it was still in tact. Here is the output:
GPT fdisk (gdisk) version 0.6.14 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Command (? for help): p Disk /dev/sdb: 3907029168 sectors, 1.8 TiB Logical sector size: 512 bytes Disk identifier (GUID): 3A0E99EE-74F9-41F5-81A0-7B7D7235DE8E Partition table holds up to 128 entries First usable sector is 34, last usable sector is 3907029134 Partitions will be aligned on 2048-sector boundaries Total free space is 2157 sectors (1.1 MiB) Number Start (sector) End (sector) Size Code Name 1 2048 4095 1024.0 KiB EF02 2 4096 503807 244.0 MiB EF00 3 503808 3907028991 1.8 TiB 8E00 Command (? for help): i Partition number (1-3): 3 Partition GUID code: E6D6D379-F507-44C2-A23C-238F2A3DF928 (Linux LVM) Partition unique GUID: 4F35492A-C6DD-4E31-9D53-8C88A74A1B48 First sector: 503808 (at 246.0 MiB) Last sector: 3907028991 (at 1.8 TiB) Partition size: 3906525184 sectors (1.8 TiB) Attribute flags: 0000000000000000 Partition name:
So, it's still there and apparently in tact, so I went on to do vgscan:
Reading all physical volumes. This may take a while...
Found volume group "ubuntu" using metadata type lvm2
So, I did :/# vgchange -ay ubuntu followed by :/# lvs and got:
LV VG Attr LSize Origin Snap% Move Log Copy% Convert root ubuntu -wi-ao 4.40g swap_1 ubuntu -wi-a- 260.00m
The thing is, there should be another VG in there almost 1.8TB in size but it isn't showing.
So.. is there any way to recover a LV that isn't showing for lvs? I need to recover 1 important file in there that was created after the last backup was made.
--- Volume group --- VG Name ubuntu System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 1.82 TiB PE Size 4.00 MiB Total PE 476870 Alloc PE / Size 1191 / 4.65 GiB Free PE / Size 475679 / 1.81 TiB VG UUID r3Z9Io-bWk7-i7wp-9QGZ-mF3o-ucQs-SdsaGW