Issue: Linux servers originally imaged with the manufacturing OPS-21.06.1 Key (which introduced 20.04 OS) or reimaged with the RETAIL10-21.06.1 Key break the “rEFInd” boot manager after running ‘apt upgrade’. Root Cause: The fundamental issue is that the apt upgrade is updating the grub bootloader and overwriting the “rEFInd” boot manager with a new default (“fallback”)… Continue reading Servers imaged with OPS-21.06.1 Key or reimaged with RETAIL10-21.06.1 Key Break the boot manager after an “apt upgrade”