Bug ID 676432: i5000/i10000 Series platform serial console baud rate 38400 gets reset to 19200 after reboot

Last Modified: Jan 29, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4

Fixed In:
14.1.0, 14.0.0

Opened: Aug 01, 2017
Severity: 3-Major

Symptoms

i5000/i10000 Series platform serial console baud rate 38400 gets reset to 19200 after reboot.

Impact

The baud rate becomes 19200 (the default) after reboot. Cannot set console baud-rate to 38400.

Conditions

-- Serial Console Baud Rate set to 38400. -- i5000/i10000 Series platforms. -- Reboot system.

Workaround

You can use either of the following workarounds: -- Do not set 38400 as the baud rate. F5 does not recommend using 38400 baud rate on i5000/i10000 Series platforms. -- Disable auto-baud detection by replacing a line in /sbin/agetty_serial, as follows: Edit /sbin/agetty_serial to replace this line: args="-L ${1} 0 ${3}" with this line: args="-8 -L ${1} ${2} ${3}"

Fix Information

i5000/i10000 Series platform serial console baud rate 38400 no longer gets reset to 19200 after reboot.

Behavior Change