Forum Discussion
julien_21453
Mar 21, 2011Nimbostratus
Best Way for downgrading an appliance in version 9.4.x
Hello,
I will have a new mission on my F5 LTM 6900 which, today, is in version 10.2.0 (clean installation).
We have to downgrade this unit with the version 9.4.8 for a few time.
So I just want to be sure of the way to do that :
1) Backup the configuration in an UCS file
2) revert the LVM of Version 10 and use disk partition scheme
(SOL9745) => this solution create two partition HD1.1 and HD1.2 and one of this will keep the version 10.
But this solution have some troubles :
- if version 10.x is installed on HD1.1 partition, install of version 9.4 software may fail => (sol11283)
- if we revert the LVM with version 10.1.0, there must be a bootloader corrupt => (sol 11063)
So we have to use version 10.2.0 or later for reverting LVM and using disk partition scheme and we have to use HD1.2 for installing version 10.2.0 software.
image2disk --instslot=HD1.2 --format=partitions BIGIP-10.2.0.iso
But with version 9.4.x we may have MOS disappeared in the grub Menu.
3) downgrade and make a clean installation on the second partition HD1.1 => SOL9447 display all the method :
- Network Boot (or through a PXE Server)
- USB CD-ROM => SOL9589
- Local Installation
- Remote Installation
4) choose the version 9 at the boot :
switchboot -b HD1.1
- About the UCS file we have created in the first step, can we use it on version 9 ? I think not but not sure..
- About the licensing, if we downgrade on version 9 (with a version 10 on the other partition) we have to re-activate the license on version 9 ? And if we choose in few days to use the version 10 (we will probably make a clean install), the same license can be used and re-activate ?
Thank you very much for your reply.
- Chris_MillerAltostratusHere's the SOL I've used when doing this:
- julien_21453NimbostratusThank you for your answer chris.
- Chris_MillerAltostratusIf you grab the UCS, that should have the license info in it but I'd open it up just to be sure. The /config directory should definitely have it too.
- julien_21453NimbostratusThank You Chris,
- Chris_MillerAltostratusjulien - From what I've seen, a UCS from one version cannot be used on any other version. BIG-IP will throw an error when you try restoring it. It can be frustrating especially if you're going between minor revisions or aren't even taking advantage of anything that changes between versions - but it is what it is.
- hooleylistCirrostratusI was surprised to find out that you can install a 9.x UCS on a 10.x slot. The older config format is converted to current 10.x syntax. This is not supported in 9.x though.
- Chris_MillerAltostratusPosted By hoolio on 03/23/2011 08:46 AM
- Michael_YatesNimbostratusYour kidding.
- julien_21453NimbostratusHello everybody,
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