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LVM mount relocate

Link to this post 18 Nov 13

I currently have a LVM setup running. See log at the bottom of post. I wanted to use the LVM for storage so I could easily add disks to expand the storage.

I made a mistake when I installed everything, since the lv 'root' is mounted at '/'.
It should have been mounted at /var/share/ so when I want to reinstall the Linux distro I can get those files back easily.
I'm not sure if I'm correct (it was my first LVM setup) but is it possible to achieve the same result after the install? If it's necessary I can purchase a new harddisk, but I'm trying to avoid losing/backing up all my data.

Any thoughts?


LVM Setup here:

lvm> pvdisplay
--- Physical volume ---
PV Name /dev/sdb5
VG Name ubuntu
PV Size 931.27 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 238405
Free PE 0
Allocated PE 238405
PV UUID UUi8qf-lW4B-fEpj-3a0k-tssq-kwja-TA3WlN

--- Physical volume ---
PV Name /dev/sdc
VG Name ubuntu
PV Size 1.36 TiB / not usable 2.40 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 357699
Free PE 0
Allocated PE 357699
PV UUID 2O8tUr-Z6S9-wkVQ-M2Gy-XVQ9-Mj21-ujCusF

--- Physical volume ---
PV Name /dev/sda
VG Name ubuntu
PV Size 1.82 TiB / not usable 1.09 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 476932
Free PE 0
Allocated PE 476932
PV UUID P5AHQz-7eDY-F9yf-ZDkV-9p9y-sY3V-rRo0Dd


lvm> vgdisplay
--- Volume group ---
VG Name ubuntu
System ID
Format lvm2
Metadata Areas 3
Metadata Sequence No 7
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 3
Act PV 3
VG Size 4.09 TiB
PE Size 4.00 MiB
Total PE 1073036
Alloc PE / Size 1073036 / 4.09 TiB
Free PE / Size 0 / 0
VG UUID Wq4TiR-H1GR-2IiA-sgqq-wfh9-393i-LMWNsG

lvm> lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu/root
LV Name root
VG Name ubuntu
LV UUID TLjqw5-59pm-9uKA-eHxw-Bjla-1uFi-d1Dwh2
LV Write Access read/write
LV Creation host, time ubuntu, 2012-10-28 17:18:02 +0100
LV Status available
# open 1
LV Size 4.09 TiB
Current LE 1072797
Segments 4
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0

--- Logical volume ---
LV Path /dev/ubuntu/swap_1
LV Name swap_1
VG Name ubuntu
LV UUID q3sxOs-OOLj-8JF5-zDxc-FWiP-XWur-YgtBvR
LV Write Access read/write
LV Creation host, time ubuntu, 2012-10-28 17:18:03 +0100
LV Status available
# open 2
LV Size 956.00 MiB
Current LE 239
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1

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