Bug ID 1813721: Arrow keys do not work in the GRUB edit screen of the console

Last Modified: Sep 05, 2025

Affected Product(s):
F5OS F5OS-C(all modules)

Known Affected Versions:
F5OS-C 1.8.0, F5OS-C 1.8.1

Opened: Feb 07, 2025

Severity: 3-Major

Symptoms

The arrow keys do not work as expected in the GRUB edit screen in the console.

Impact

Unable to select a GRUB image.

Conditions

-- Connected via console. -- In the GRUB edit screen. -- Attempting to use arrow keys on the keyboard.

Workaround

If connected via SSH, ctrl-p and ctrl-n can be used for up (previous) and down (next). ctrl-b and ctrl-f can be used for left (back) and right (forward). And ctrl-h can be used to delete a character left to the cursor when backspace key does not work. In addition, the grub.cfg file can be modified to make the arrow keys work. Change: serial --speed=115200 terminal_input serial console terminal_output serial console to terminal_input console terminal_output console

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips