Upgrade from 1.5 Cluster to v2.x

[johnh]

I have a client running a Proxmox 1.5 cluster of four servers (about 50 containers). Any advice on the best way to upgrade to the latest version? The wiki refers only to upgrading from 1.9. I was hoping to be able to do the following - the details need working out (especially re Cluster config) but is the basic idea OK? Or must I somehow upgrade to 1.9 before going to 2.x?


Upgrade 1.5 - 2.x


- Install a new server host with v2.x
- For each 1.5 cluster member:
- backup each container (all Linux), copy to new server and restart
- shutdown and rebuild as v2.x


Any tips or experiences of this type of upgrade would be welcome.

 

[mel128]

Hello John,

When I upgrade from a 1.x to a 2.x, I always move all VM to empty each physical server and I install a new Proxmox physical server from scratch. Maybe I check the the HDs and replace them if necessary.

I use a temporary server to do that.

Hope that help.

 

[johnh]

Hello John,

When I upgrade from a 1.x to a 2.x, I always move all VM to empty each physical server and I install a new Proxmox physical server from scratch. Maybe I check the the HDs and replace them if necessary.

I use a temporary server to do that.

Hope that help.

Thanks. That's what I expected. Just checking - do all VMs created in 1.x work in 2.x. Are there any hidden gotchas?

Also there are startup scripts for mounting NFS volumes into the containers - should these all work in 2.x as well?

 

[bhennigar]

It's recommended to do a clean install when going from 1.x to 2.x.
Here are the steps that I take:
- stop the virtual machines
- run a full backup
- move the backup files to an external hard drive or another server
- Do a clean install of the latest proxmox
- Move the backup files back to the local server
- Update proxmox (apt-get update && apt-get upgrade)
- Restore the backup files
- Start the virtual machines

That should be it.

 

[johnh]

Thanks for your help. I'll run some tests today. It looks as though it will actually be easier than I thought.