Red Hat Bugzilla – Bug 483112
[grub] Error 30: Invalid argument when trying to set the serial options from grub shell
Last modified: 2012-03-07 15:44:47 EST
Description of problem: During automation testing we are trying to use the grub shell to configure parameters. It fails every time with Error 30: Version-Release number of selected component (if applicable): grub-0.97-13.2 How reproducible: Always Steps to Reproduce: 1. as root open grub shell #grub 2. Try to set the serial settings Actual results: GNU GRUB version 0.97 (640K lower / 3072K upper memory) [ Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists the possible completions of a device/filename.] grub> serial Error 30: Invalid argument grub> serial --unit=/dev/ttyS0 --speed=115200 Error 23: Error while parsing number Expected results: This should work as described by the help message: grub> help serial serial: serial [--unit=UNIT] [--port=PORT] [--speed=SPEED] [--word=WORD] [--parity=PARITY] [--stop=STOP] [--device=DEV] Initialize a serial device. UNIT is a digit that specifies which serial device is used (e.g. 0 == COM1). If you need to specify the port number, set it by --port. SPEED is the DTE-DTE speed. WORD is the word length, PARITY is the type of parity, which is one of `no', `odd' and `even'. STOP is the length of stop bit(s). The option --device can be used only in the grub shell, which specifies the file name of a tty device. The default values are COM1, 9600, 8N1. Additional info:
Moving to RHEL 5.5 so it doesn't get mistakenly closed by the bot
I have the same problem with grub-0.97-13.2. Please note that the original poster used "--unit=/dev/ttyS0" which is invalid and results in "Error 23" I used the following commands to duplicate the problem: grub> serial Error 30: Invalid argument grub> serial --dev=/dev/ttyS0 --speed=9600 Error 30: Invalid argument grub> serial --unit=0 --speed=9600 Error 30: Invalid argument grub> Following is the dmesg output about the serial ports: Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:0a: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A Any status on when this might get fixed? I need to use serial consoles for my devices when they are deployed.
This request was evaluated by Red Hat Product Management for inclusion, but this component is not scheduled to be updated in the current Red Hat Enterprise Linux release. If you would like this request to be reviewed for the next minor release, ask your support representative to set the next rhel-x.y flag to "?".
Jeff, I think you've used "--unit=" where you meant "--device=".
Peter, You are correct. However in Comment#2 Pete Caldes corrected me and duplicated the original issue I was trying to convey.
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