flash.sh: backup rom first, revert to backup if flashing fails for whatever reasons#1870

Draft

tlaurion wants to merge 1 commit intolinuxboot:masterfrom tlaurion:flash_rollback_to_backup_if_flash_fails

+13-4

Commits on Nov 30, 2024

flash.sh: take a backup of known good firmware state to rollback to, revert to rollback if flashing fails for whatever reason.
tlaurion
committed