Re: [9fans] xen boot params and domU plan 9

Re: [9fans] xen boot params and domU plan 9

[YAMANASHI Takeshi]

> how can a domU Plan 9 kernel get the boot parameters
> passed by Xen?

Sorry, I should have looked more cautiously.  /env/ip has it.

	cpu% ls /env/ip
	/env/ip
	cpu% echo $ip
	131.112.14.153/26:1.2.3.4::::eth0:off VNC_VIEWER=127.0.0.1:5501
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Re: [9fans] xen boot params and domU plan 9

[Ronald G Minnich]

Tim Newsham wrote:
>> how can a domU Plan 9 kernel get the boot parameters
>> passed by Xen?
> 
> 
> The arguments should show up in '#e/' and '#ec' as they do
> when booting on the pc.

and you can set up those env variables in the /etc/xen/whatever file you 
use to start plan 9, e.g.

extra='''\nventi=#S/sd00/arenas\n'''

sets up my venti env variable. You can have multiple things in there, 
hence the \n

ron

Re: [9fans] xen boot params and domU plan 9

[Tim Newsham]

> how can a domU Plan 9 kernel get the boot parameters
> passed by Xen?

The arguments should show up in '#e/' and '#ec' as they do
when booting on the pc.

Tim Newsham
http://www.lava.net/~newsham/

[9fans] xen boot params and domU plan 9

[YAMANASHI Takeshi]

Hi, 

how can a domU Plan 9 kernel get the boot parameters
passed by Xen?

I heard that NetBSD domU kernel puts the parameters
in /kern/xen/xmdline;

	# cat /kern/xen/cmdline
	ip=:1.2.3.4::::eth0:dhcp root=/dev/hda1 VNC_VIEWER=150.82.173.195:5501 screen=800x600

while the domU NetBSD being started by

	# xm create -c disk=/home/knoppix/netbsd.fs,hda1,w name=NetBSD kernel=/home/knoppix/netbsd root=/dev/hda1 memory=64 dhcp=dhcp vnc=yes extra="screen=800x600"

Thanks.
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