Syslinux - Oct 2002 - Having problems with PXELINUX parsing contents of pxelinux.cfg/AC134D6D

Hello, 

We are trying to use 'PXELINUX' for network boot with root file system
on ramdisk, the kernel image vmlinuz and compressed root file system
rootfs.img.gz are both present in /tftpboot directory

PXELINUX client (pxelinux.0) requests and gets the config file AC134D6D from the
TFTP server (which supports tsize option) contents are as follows

timeout 10
prompt 1
label linux-new
	kernel vmlinuz
 	append ramdisk_size=40000 initrd=rootfs.img.gz root=/dev/ram

After this point we see tftp requests coming in for linux, linux.0, linux.cbt
instead of vmlinz or rootfs.img.gz!

Any idea why this happens? Is there some 'error' in the format of config
file we are using? Are tabs allowed?

Thanks,
Sowmya

Hi,

you should probably increase the timeout (10 = 1 second, is ap retty short
time to react)
Another thing you might want to do is add a default boot by adding
DEFAULT linux-new
in your config file.
So try:

PROMPT 1
DEFAULT linux-new
TIMEOUT 50

label linux-new
	kernel vmlinuz
 	append ramdisk_size=40000 initrd=rootfs.img.gz root=/dev/ram

I hope that works,

_tom


-----Original Message-----
From: Sowmya.Krishnaswamy at nokia.com
[mailto:Sowmya.Krishnaswamy at nokia.com]
Sent: Freitag, 25. Oktober 2002 13:19
To: syslinux at zytor.com
Subject: [syslinux] Having problems with PXELINUX parsing contents of
pxelinux.cfg/AC134D6D


Hello, 

We are trying to use 'PXELINUX' for network boot with root file system
on
ramdisk, the kernel image vmlinuz and compressed root file system
rootfs.img.gz are both present in /tftpboot directory

PXELINUX client (pxelinux.0) requests and gets the config file AC134D6D from
the TFTP server (which supports tsize option) contents are as follows

timeout 10
prompt 1
label linux-new
	kernel vmlinuz
 	append ramdisk_size=40000 initrd=rootfs.img.gz root=/dev/ram

After this point we see tftp requests coming in for linux, linux.0,
linux.cbt instead of vmlinz or rootfs.img.gz! 

Any idea why this happens? Is there some 'error' in the format of config
file we are using? Are tabs allowed?

Thanks,
Sowmya


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Hi,

Adding the DEFAULT helps! Thanks PXELINUX is downloading vmlinuz now. However
the tftp server complains saying that its expecting ack for block [n] when its
getting back ack for block [n-1]!

Finally gets an ack for block [n] and moves on but this is going to take a lot
longer to download vmlinuz than it would if the sequence numbers in ACK was
synchronised.

Would you have any suggestions on parameters to finetune at the server end or is
there a hidden bug in PXELINUX-TFTP!

Thanks,
Sowmya

-----Original Message-----
From: ext H. Peter Anvin [mailto:hpa at zytor.com]
Sent: Friday, October 25, 2002 10:52 AM
To: Duetsch Thomas
Cc: Krishnaswamy Sowmya (NET/MtView); syslinux at zytor.com
Subject: Re: [syslinux] Having problems with PXELINUX parsing contents
of pxelinux.cfg/AC134D6D


Duetsch Thomas wrote:
> Hi,
> 
> you should probably increase the timeout (10 = 1 second, is ap retty short
> time to react)
> Another thing you might want to do is add a default boot by adding
> DEFAULT linux-new
> in your config file.
> So try:
> 
> PROMPT 1
> DEFAULT linux-new
> TIMEOUT 50
> 
> label linux-new
> 	kernel vmlinuz
>  	append ramdisk_size=40000 initrd=rootfs.img.gz root=/dev/ram
> 
> I hope that works,
> 

Yes, without the DEFAULT option it will not pick a label unless it's
called "linux".

	-hpa