MIVB9 upgrade half way

[Tinos]

Hi all.
I have a 3300 hundred which I was upgrading to mivb9 and it failed on the halfway mark. Now it keeps on booting showing the below. I tried the reverse migration procedure and it fails with an error below. How can I take it back to the previous release?
Wrong Image Format for bootm command
ERROR: can't get kernel image!
=>
Press <SPACE> key 3 times within 7 seconds to stop autoboot
=> run upd_bootrom_fromdisk
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
bootrom.bin download failed
=>

Thank you.

 

[sarond]

Does the HDD boot in another pre 9.0 system?

From the migration guidelines pg. 41 you could try the below.

https://www.mitel.com/document-cent...-release-91-sp1-migration-guidelines-issue-10

NOTE: You must know the active partition number of the hard disk (1 or 4) to boot the pre-9.0 MiVoice Business software load properly (see Before you Begin).

Run the following commands to configure U-Boot to boot VxWorks from the new disk drive:

setenv vxworks_active_partition <1 or 4>
setenv bootcmd run loadvx_ata
saveenv
boot