Resizing disk on ubuntu vm

Y

yecine06

Member
Sep 16, 2014
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Aix, Provence-Alpes-Cote D'Azur, France, France
yecine06 said:
What i am doing wrong ?
Click to expand...

Hi,
you need the right disk-device - /dev/sda5/diskimage is not an valid device. /dev/sda or /dev/vdb are valid devices - the number shows the partition-number.
EG. /dev/sda5 is the fifth partition on /dev/sda.

To see your partions and disks post the output of following commands (inside your VM)
Code: 
sudo parted -l        # if parted isn't installed use "fdisk -l"
sudo pvs
sudo vgs
sudo lvs
sudo mount
Udo
 
Hello,

Here is what i have return by the different commands :

plex@pms:~$ sudo parted -l
Model: ATA QEMU HARDDISK (scsi)
Disk /dev/sda: 8590MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos


Number Start End Size Type File system Flags
1 1049kB 256MB 255MB primary ext2 boot
2 257MB 8589MB 8332MB extended
5 257MB 8589MB 8332MB logical lvm




Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/pms--vg-root: 6187MB
Sector size (logical/physical): 512B/512B
Partition Table: loop


Number Start End Size File system Flags
1 0.00B 6187MB 6187MB ext4




Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/pms--vg-swap_1: 2143MB
Sector size (logical/physical): 512B/512B
Partition Table: loop


Number Start End Size File system Flags
1 0.00B 2143MB 2143MB linux-swap(v1)




Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
has been opened read-only.
Model: QEMU QEMU DVD-ROM (scsi)
Disk /dev/sr0: 600MB
Sector size (logical/physical): 2048B/2048B
Partition Table: mac


Number Start End Size File system Name Flags
1 8192B 24.6kB 16.4kB Apple
2 466MB 475MB 9568kB EFI




plex@pms:~$ sudo pvs
PV VG Fmt Attr PSize PFree
/dev/sda5 pms-vg lvm2 a-- 7.76g 0
plex@pms:~$ sudo vgs
VG #PV #LV #SN Attr VSize VFree
pms-vg 1 2 0 wz--n- 7.76g 0
plex@pms:~$ sudo lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
root pms-vg -wi-ao--- 5.76g
swap_1 pms-vg -wi-ao--- 2.00g
plex@pms:~$ sudo mount
/dev/mapper/pms--vg-root on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
/dev/sda1 on /boot type ext2 (rw)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
plex@pms:~$
Click to expand...
 
yecine06 said:
Code: 
plex@pms:~$ sudo parted -l
Model: ATA QEMU HARDDISK (scsi)
Disk /dev/sda: 8590MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos


Number Start End Size Type File system Flags
1 1049kB 256MB 255MB primary ext2 boot
2 257MB 8589MB 8332MB extended
5 257MB 8589MB 8332MB logical lvm
Click to expand...
Hi,
your disk show 8590MB and you use the space (End 8589MB).

I assume you don't have stop/start the VM to activate the bigger disk?!

Be sure to have an valid backup if you resize sda2+sda5...
I would simply add an new partition ... or use an second disk and ad them to the volume group.

Udo
 
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