LVM: mounting LVM partitions - Revision history

Aroberts at 19:56, 4 January 2014

2014-01-04T19:56:02Z

Aroberts at 19:55, 4 January 2014

2014-01-04T19:55:35Z

Paulm at 20:38, 22 February 2013

2013-02-22T20:38:38Z

Paulm: Created page with "Some hard drives now come configured with LVM ([https://en.wikipedia.org/wiki/Logical_Volume_Manager Logical Volume Manager]). These need to be mounted using a special process. …"

2013-02-22T20:27:05Z

Created page with "Some hard drives now come configured with LVM ([https://en.wikipedia.org/wiki/Logical_Volume_Manager Logical Volume Manager]). These need to be mounted using a special process. …"

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Some hard drives now come configured with LVM ([https://en.wikipedia.org/wiki/Logical_Volume_Manager Logical Volume Manager]). These need to be mounted using a special process.

First you need to ensure you have the relevant tools:
sudo apt-get install lvm2

Then run '''fdisk''' to make sure the drive is recognised
sudo fdisk -l

Now run '''pvscan''' to scan all for LVM ''physical volumes'' on the installed hard drives .
sudo pvscan

PV /dev/sda2 VG VolGroup00 lvm2 [74.41 GB / 32.00 MB free]
Total: 1 [74.41 GB] / in use: 1 [74.41 GB] / in no VG: 0 [0 ]

Next run '''vgscan''' to detect LVM ''logical volumes'' (with LVM a partition can span more than one physical disk)

vgscan

Reading all physical volumes. This may take a while...
Found volume group "VolGroup00" using metadata type lvm2

Now activate these using '''vgchange'''

vgchange -a y

2 logical volume(s) in volume group "VolGroup00" now active

Then you can run '''lvscan''' to detect the ''logical volumes''. You will see the active partitions on the disks.

lvscan

ACTIVE '/dev/VolGroup00/LogVol00' [72.44 GB] inherit
ACTIVE '/dev/VolGroup00/LogVol01' [1.94 GB] inherit

You will now be able to mount the partition

mount /dev/VolGroup00/LogVol00 /mnt

(often mount /dev/mapper/freegeek-root /mnt )

[[Category: Tech support]]

← Older revision		Revision as of 19:56, 4 January 2014
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	Alternatively, you can follow these steps in other linux environments:		Alternatively, you can follow these steps in other linux environments:
		+

	First you need to ensure you have the relevant tools:		First you need to ensure you have the relevant tools:

← Older revision		Revision as of 19:55, 4 January 2014
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	Some hard drives now come configured with LVM ([https://en.wikipedia.org/wiki/Logical_Volume_Manager Logical Volume Manager]). These need to be mounted using a special process.		Some hard drives now come configured with LVM ([https://en.wikipedia.org/wiki/Logical_Volume_Manager Logical Volume Manager]). These need to be mounted using a special process.
		+
		+
		+	In the debian rescue environment, the LVM is at /dev/mapper/freekbox-root and can simply be mounted.
		+	mount /dev/mapper/freekbox-root /mnt
		+
		+
		+	Alternatively, you can follow these steps in other linux environments:

	First you need to ensure you have the relevant tools:		First you need to ensure you have the relevant tools:

← Older revision		Revision as of 20:38, 22 February 2013
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	Then you can run '''lvscan''' to detect the ''logical volumes''. You will see the active partitions on the disks.		Then you can run '''lvscan''' to detect the ''logical volumes''. You will see the active partitions on the disks.
		+	You can also use '''lvdisplay''' which gives mor edetailed information.

	lvscan		lvscan