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Forum Discussion

sindhe22f5_3548's avatar
sindhe22f5_3548
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Mar 06, 2018

F5 is taking more than 50 mins to reboot

Hello   Actually i am downgrading F5 device from 12.1.0 to 11.6.0 after selecting the boot location and then clicked on activate after that F5 reboots but now its almost 55 mins it's still showing...
ASM Advanced WAF
security
Hannes_Rapp's avatar
Hannes_Rapp
Icon for Nimbostratus rankNimbostratus
Mar 06, 2018

You cannot downgrade from v12 to v11. When upgrading, you must ensure one partition remains with old version as a fallback option.

Did you click "install configuration" when rebooting to v11 from v12? If yes, your best bet is to do a clean install of v11, and manually migrate your configuration back to v11. On your v12 boot location, look for your configuration elements in 

/config
directory, or just use an UCS image backup from v11 (if you have one).