Firepower 1010 update to version 6.6.0 fatal error

[kajtek]

I'm having trouble updating from version 6.4.0.18 to version 6.6.0. An error appears in the logs.

[251008 16:06:03:633] Starting script: 800_post/100_ftd_onbox_data_import.sh
chroot: failed to run command '/bin/sh': No such file or directory
Exit return value = 127

ui:[51%] Fatal error: Error running script 800_post/100_ftd_onbox_data_import.sh. For more details see /ngfw/var/log/sf/Cisco_FTD_SSP_FP1K_Upgrade-6.6.0/800_pos t/100_ftd_onbox_data_import.sh.log on the device being upgraded.

[Kasun Bandara]

hi @kajtek , try to upgrade to 6.6.1 as initial step or you can directly upgrade to 7.0 as per upgrade path guide.

Cisco Secure Firewall Threat Defense Upgrade Guide for Management Center, Version 7.6.x - Planning Your Upgrade [Cisco Secure Firewall Management Center] - Cisco

if you want to upgrade exactly to 6.6.0, better get TAC support on this issue.