Question
We have several AS-2024US-TRT systems that we installed Ubuntu 20.04 LTS on to the Micron 7450 NVME drive.  After the BIOS update, the systems are no longer boot.  The NVME drive does show up in Advanced BIOS, when boot into UEFI shell, we only see BLK devices, no FS0: or FS1: that contains the boot loader.  Will BIOS update delete the Boot loader?  How can we recover or troubleshoot the system?
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Answer
You could have partitioned the OS boot drive in GPT partition and install the Ubuntu OS in Legacy boot that shows this type of behavior.  You can change the boot device to Legacy boot mode and see if it can boot up.  If not, boot the system using ISO or USB thumb drive and check the boot devices, it should display the partition and boot loader information using these two commands.

fdisk -l /dev/nvme0n1
lsblk -f /dev/nvme0n1

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FAQ ID:
42926
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Date Posted:
05/09/25
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