VyOS doesn't want to boot after upgrade from Vyatta

Dear colleagues,

VyOS didn’t wanted to boot after it was upgraded from Vyatta OS. We suffered a huge DDoS and the router became unstable. After a reboot it didn’t want to boot at all.

The config on the router was with software raid and Vyatta OS. I made the upgrade to VyOS image right away and initially it booted.

Please find attached an image from the bug.