Re: Booting a javastation with only serial console possible?
From: Pete Zaitcev (zaitcev_at_yahoo.com)
Date: 09/14/03
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Date: Sun, 14 Sep 2003 02:35:11 GMT
On Sat, 13 Sep 2003 10:15:13 +0000, Konstantinos Agouros wrote:
> I compiled serial console support into my JavaStation Kernel. However it does
> not seem to really boot 'headless'. While the station itself comes up it does
> not really load the kernel. Is this at all possible? Since I can not parse
> any commandlineoptions.
It was an easy thing to do with 2.4 kernel without any command line
options, if serial console does not work for you, something is broken.
Just try to follow the Robb's HOWTO.
In 2.6 kernel, you have to add console=ttyS0,9600, so I added
the options to PROLL. After ID 17 it can load options from a file
XXXXXXXXX.CMDL, like so:
[zaitcev@elanor zaitcev]$ ls -l /tftpboot
total 4492
lrwxrwxrwx 1 root root 12 Nov 24 2002 C0A88004.SUN4M -> vmlinux.aout
lrwxrwxrwx 1 zaitcev zaitcev 23 Sep 13 2002 C0A88006 -> proll.espresso-ser.ID18
-rw-rw-r-- 1 zaitcev zaitcev 27 Sep 29 2002 C0A88006.CMDL
lrwxrwxrwx 1 zaitcev zaitcev 12 Sep 29 2002 C0A88006.PROL -> vmlinux.aout
lrwxrwxrwx 1 zaitcev zaitcev 12 Oct 20 2002 C0A88007.SUN4C -> vmlinux.aout
lrwxrwxrwx 1 zaitcev zaitcev 12 Apr 28 23:02 C0A88008.SUN4M -> vmlinux.aout
-rw-rw-r-- 1 zaitcev zaitcev 84648 Sep 13 2002 proll.espresso-ser.ID18
-rw-rw-r-- 1 zaitcev zaitcev 84360 Jul 31 2002 proll.espr-ser-net.ID17
-rw-rw-r-- 1 zaitcev zaitcev 1942592 Feb 2 2003 vmlinux-2.4.21-pre3
-rw-rw-r-- 1 zaitcev zaitcev 2460900 May 19 02:07 vmlinux.aout
[zaitcev@elanor zaitcev]$ cat /tftpboot/C0A88006.CMDL
ip=dhcp console=ttyS0,9600
[zaitcev@elanor zaitcev]$
You always can hardcode options into PROLL, IIRC some architectures
do it (espresso-ser perhaps does).
-- Pete
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