ubuntu:disk:recover_lvm_disks
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| ubuntu:disk:recover_lvm_disks [2019/11/26 18:45] – created peter | ubuntu:disk:recover_lvm_disks [2020/07/15 09:30] (current) – external edit 127.0.0.1 | ||
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| If for some reason a disk cannot be read, the following may help. | If for some reason a disk cannot be read, the following may help. | ||
| - | * Plug the disks in and try reading them> | + | * Plug the disks in and try reading them. |
| + | ---- | ||
| - | Get a list of volume names by running # | + | ===== List devices that may be used as physical volumes ===== |
| - | <code bash> | + | |
| - | lvscan | + | |
| - | </ | + | |
| - | + | ||
| - | returns | + | |
| <code bash> | <code bash> | ||
| - | ACTIVE | + | sudo lvmdiskscan |
| - | ACTIVE | + | |
| </ | </ | ||
| + | <WRAP info> | ||
| + | **lvmdiskscan** scans all SCSI, (E)IDE disks, multiple devices and a bunch of other block devices in the system looking for LVM PVs. | ||
| + | </ | ||
| - | <code bash> | ||
| - | lvmdiskscan | ||
| - | </ | ||
| returns | returns | ||
| Line 56: | Line 51: | ||
| </ | </ | ||
| + | That last line shows that a LVM Physical Volume has been picked up. Good. | ||
| ---- | ---- | ||
| - | ===== Install LVM2 tools ===== | + | ===== List all logical volumes in all volume groups ===== |
| + | |||
| + | Get a list of volume names: | ||
| + | |||
| + | <code bash> | ||
| + | sudo lvscan | ||
| + | </ | ||
| + | |||
| + | returns: | ||
| + | |||
| + | <code bash> | ||
| + | ACTIVE | ||
| + | ACTIVE | ||
| + | </ | ||
| + | |||
| + | ---- | ||
| + | |||
| + | |||
| + | ===== Install LVM2 tools, if needed | ||
| This step may or may not be required. | This step may or may not be required. | ||
| <code bash> | <code bash> | ||
| - | sudo apt-get install lvm2 | + | sudo apt install lvm2 |
| </ | </ | ||
| + | ---- | ||
| ===== Verify your LVM partition(s) is/are detected. ===== | ===== Verify your LVM partition(s) is/are detected. ===== | ||
| Line 76: | Line 91: | ||
| returns | returns | ||
| - | < | + | < |
| PV / | PV / | ||
| Total: 1 [<1.82 TiB] / in use: 1 [<1.82 TiB] / in no VG: 0 [0 ] | Total: 1 [<1.82 TiB] / in use: 1 [<1.82 TiB] / in no VG: 0 [0 ] | ||
| </ | </ | ||
| - | --- | + | ---- |
| - | ===== Scans for LVM Volume Group(s) ===== | + | ===== Scan for LVM Volume Group(s) ===== |
| <code bash> | <code bash> | ||
| Line 91: | Line 106: | ||
| returns: | returns: | ||
| - | < | + | < |
| Reading volume groups from cache. | Reading volume groups from cache. | ||
| Found volume group " | Found volume group " | ||
| Line 98: | Line 113: | ||
| ---- | ---- | ||
| - | ===== Activates | + | ===== Activate |
| <code bash> | <code bash> | ||
| sudo vgchange -ay | sudo vgchange -ay | ||
| </ | </ | ||
| + | |||
| + | The params to vgchange are: | ||
| + | |||
| + | <WRAP info> | ||
| + | a = activate | ||
| + | y = yes. It will not prompt you. | ||
| + | </ | ||
| + | |||
| ---- | ---- | ||
| Line 112: | Line 135: | ||
| </ | </ | ||
| - | returns | + | returns: |
| - | < | + | < |
| ACTIVE | ACTIVE | ||
| ACTIVE | ACTIVE | ||
ubuntu/disk/recover_lvm_disks.1574793921.txt.gz · Last modified: 2020/07/15 09:30 (external edit)