Mount Lvm
Locigal Volume Manager
Mi è capitato di dover montare una partizione LVM dal sistema operativo diverso da quello in cui viene normalmente gestita, questo per resettare una password di root e/o cambiare i permessi di /etc/sudoers che erano troppo restrittivi.
Ho usato questa guida riporto qui la sintesi dei comandi
identificare il volume fisico
# pvs
PV VG Fmt Attr PSize PFree
/dev/hda2 VolGroup01 lvm2 a- 148.94G 32.00M
/dev/hdb2 VolGroup00 lvm2 a- 114.94G 96.00M
identificare il volume logico
# lvdisplay /dev/VolGroup01
--- Logical volume ---
LV Name /dev/VolGroup01/LogVol00
VG Name VolGroup01
LV UUID zOQogm-G8I7-a4WC-T7KI-AhWe-Ex3Y-JVzFcR
LV Write Access read/write
LV Status available
# open 0
LV Size 146.97 GB
Current LE 4703
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:2
--- Logical volume ---
LV Name /dev/VolGroup01/LogVol01
VG Name VolGroup01
LV UUID araUBI-4eer-uh5L-Dvnr-3bI6-4gYg-APgYy2
LV Write Access read/write
LV Status available
# open 0
LV Size 1.94 GB
Current LE 62
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:3
montare il volume logico
mount /dev/VolGroup01/LogVol00 /tmp/mnt
resize the file system if the space is not enough
if you find your file system
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00 6.0G 2.2G 3.9G 37% /
is less than your volume size
sudo vgdisplay
--- Volume group ---
VG Name VolGroup00
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size 99.50 GiB
PE Size 4.00 MiB
Total PE 25471
Alloc PE / Size 1664 / 6.50 GiB
Free PE / Size 23807 / 93.00 GiB
you need to resize with this command
lvresize -r -L +10GB /dev/mapper/VolGroup00-LogVol00
in this example we add only 10 GB but depends from the situation
versione della pagina: 1, ultima modifica: 28 Mar 2017 12:09