Difference between revisions of "LVM"
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# mount as normal with <code> mount /dev/vg_(machine-name)/(distro-name) /location/to/mount/to</code>. | # mount as normal with <code> mount /dev/vg_(machine-name)/(distro-name) /location/to/mount/to</code>. | ||
==Maintenance== | ==Maintenance== | ||
| − | Expand a volume: | + | ===Expand a volume=== |
| − | ##umount /dev/vg_machine/lv | + | In order to expand a logical volume and its corresponding filesystem: |
| − | + | ||
| − | + | #lvscan to find out the location (/dev/) of the lvm. | |
| − | + | #umount /dev/vg_machine/lv | |
| − | + | #lvresize -L +2G /dev/vg_machine/lv | |
| + | #e2fsck -f /dev/vg_machine/lv | ||
| + | #resize2fs /dev/vg_machine/lv | ||
| + | #reboot | ||
Latest revision as of 18:13, 11 June 2009
Logical Volume Management is used to treat seperate disks as one. However, this can cause trouble when trying to access the disks from a recovery CD, etc.
Mounting
To mount lvm partitions from a livecd (for purposes of recovery/emergency maintenance), simply:
modprobe dm-modto load required moduleslvm vgchange -ayto become aware of the volume groups- mount as normal with
mount /dev/vg_(machine-name)/(distro-name) /location/to/mount/to.
Maintenance
Expand a volume
In order to expand a logical volume and its corresponding filesystem:
- lvscan to find out the location (/dev/) of the lvm.
- umount /dev/vg_machine/lv
- lvresize -L +2G /dev/vg_machine/lv
- e2fsck -f /dev/vg_machine/lv
- resize2fs /dev/vg_machine/lv
- reboot
