A Linux server was recently updated. The server now stops during the boot process with a blank screen and an fs> prompt. Which of the following is the most likely cause of this issue?

The correct answer is B. The UEFI boot was interrupted by a missing Linux boot file. The fs> prompt typically indicates that the Unified Extensible Firmware Interface (UEFI) has entered the EFI shell due to a failure in locating the bootloader or a critical Linux boot file. This often occurs after an update where boot files are moved, renamed, or deleted. To…

Troubleshooting

Question

Options

AThe system is booting to a USB flash drive.
BThe UEFI boot was interrupted by a missing Linux boot file.
CThe BIOS could not find a bootable hard disk.
DThe BIOS firmware needs to be upgraded.

How the community answered

(26 responses)

A
4% (1)
B
85% (22)
C
4% (1)
D
8% (2)

Explanation

The fs> prompt typically indicates that the Unified Extensible Firmware Interface (UEFI) has entered the EFI shell due to a failure in locating the bootloader or a critical Linux boot file. This often occurs after an update where boot files are moved, renamed, or deleted. To resolve: Verify the bootloader configuration (e.g., GRUB) and ensure the correct partition is set for booting. Recreate or repair the bootloader files if necessary. Ensure the boot sequence in UEFI settings points to the correct disk and partition.

Topics

#Linux boot process#GRUB bootloader#Boot troubleshooting#UEFI

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