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Bug 54455 - Serial speed cannot be set up
Serial speed cannot be set up
Product: Red Hat Public Beta
Classification: Retired
Component: grub (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Jeremy Katz
Depends On:
  Show dependency treegraph
Reported: 2001-10-08 15:23 EDT by Jan "Yenya" Kasprzak
Modified: 2008-05-01 11:38 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2001-10-11 17:28:43 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Jan "Yenya" Kasprzak 2001-10-08 15:23:45 EDT
Description of Problem:
When I try to set up GRUB for serial console, I cannot set the speed
different than 9600 bps (tried 115200, 38400 and 19200). I have the
following commands in /boot/grub/grub.conf:

serial --unit 0 --speed 19200
terminal serial

However, the boot loader still communicates at 9600 bps.
Both BIOS setup and kernel is capable to communicate at different
speeds (the console=tty0,38400n8 kernel parameter works as expected),
I just cannot change the speed of GRUB.

Version-Release number of selected component (if applicable):
grub-0.90-11 (actually this is a RPM from yet-unreleased Red Hat 7.2 - I am
one of the official mirrors).

Additional Information:
The machine is Tyan Thunder K7 with dual Athlon/MP @1.2 GHz. This mainboard
BIOS setup can also work over the serial line. It is just a bit slow
at 9600 bps, so I've wanted to set the whole boot process up to the higher

Comment 1 Jeremy Katz 2001-10-11 17:28:38 EDT
I'll try to take a look at this in the near future
Comment 2 Jeremy Katz 2002-08-11 16:19:46 EDT
Should work with what's in 7.3 and rawhide

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