Extending VM Linux Hard Drives

[sub3xt1]

i have tried to extend VM Linux Hard Drive but there is no luck.
here what i did:
http://forum.proxmox.com/threads/3757-Extending-VM-Hard-Drives?highlight=extend

there, i extend +10GB on proxmox host, but on vm.. there is no additional space disk.
is there any step by step extending VM Linux Hard Drive?

 

[udo]

Hi,
you can convert your qcow2-disk to raw, and then extend the raw-file.
For convert see

man qemu-img

or use the search function in this forum.
To switch the disk, you can use the gui (delete, and add existing) or edit the config-file:

/etc/qemu-server/104.conf
ide0: local:104/vm-104-disk-1.raw

Udo

 

[sub3xt1]

ok, i have seen it.

hmmm...
is that any capability going loose if vm-harddrive in raw format?
in qemu-img manual, qcow2 is next generation file format .. which stand of copy on write.

i think it will lose any snapshott capability if vm-harddrive in raw format.
i suggest like this:
1. convert qcow2 -> raw format

qemu-img convert -f qcow2 hdd.qcow2 -O raw hdd.raw

2. extend hard drive (example 50GB -> 60GB)

dd if=/dev/zero of=hdd.raw bs=1M count=0 seek=61440

3. convert back raw -> qcow2 format

qemu-img convert -f raw hdd.raw -O qcow2 hdd.qcow2

there is no need to change the file configuration also.
is that my oppinion right