I am using Ubuntu 10.04 cloud image to boot virtual instance in OpenStack (using devstack). However, if I choose a flavor with 20G hard disk and 20G ephemerel disk, I still get only 1.35G(/dev/vda1) virtual instance. If i use resize2fs from inside the instance, the size increases to 2G only. How do I increase the size to 20G ? I tried searching on google but couldn't get any proper step. Can someone please guide me to accomplish this task.
root@test:~# df -hl
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 1.4G 632M 685M 48% /
none 244M 156K 244M 1% /dev
none 247M 0 247M 0% /dev/shm
none 247M 48K 247M 1% /var/run
none 247M 0 247M 0% /var/lock
none 247M 0 247M 0% /lib/init/rw
/dev/vdb 20G 173M 19G 1% /mnt
pvdisplay and lvdisplay do not show any output.
root@test:~# df -hl
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 1.4G 632M 685M 48% /
none 244M 156K 244M 1% /dev
none 247M 0 247M 0% /dev/shm
none 247M 48K 247M 1% /var/run
none 247M 0 247M 0% /var/lock
none 247M 0 247M 0% /lib/init/rw
/dev/vdb 20G 173M 19G 1% /mnt
pvdisplay and lvdisplay do not show any output.