diskless boot hit error while booting kernel, cannot find boot device, dhcp problem?

diskless boot hit error while booting kernel, cannot find boot device, dhcp problem?

Post by Paul » Sat, 27 Oct 2001 13:29:32



Hi people, wonder if you could help me on this:

i have two redhat 7.1 machine, one trying to boot off the other
through etherboot. Everythign goes fine, the client boots, retreat the
kernel off the server through tftp, and starting the kernel. Then it
stopped with error messages:
.
.
VFS: Cannot open root device "nfs" or 00:ff
please append a correct "root=" boot option
Kernel panic:VFS: Unable to mount root fs on 00:ff

kdb >
.
.
Where do I append a "root=" option? is it a dhcp problem? in
/etc/dhcpd.conf, i did put in

 option root-path "/boothome";

along with the other options. also, when tagging the kernel image, i
also have rootdir option:
mknbi-linux zImage --output=kernel --rootdir=/boothome

nfs export is correct, i have no idea where i did wrong.

any clue?

thanks in advance.
Paul G

 
 
 

diskless boot hit error while booting kernel, cannot find boot device, dhcp problem?

Post by Vogon Jelt » Sat, 27 Oct 2001 14:27:55



> Hi people, wonder if you could help me on this:

> i have two redhat 7.1 machine, one trying to boot off the
> other through etherboot. Everythign goes fine, the client
> boots, retreat the kernel off the server through tftp, and
> starting the kernel. Then it stopped with error messages:
> .
> .
> VFS: Cannot open root device "nfs" or 00:ff
> please append a correct "root=" boot option
> Kernel panic:VFS: Unable to mount root fs on 00:ff

> kdb >
> .
> .
> Where do I append a "root=" option? is it a dhcp problem?
> in /etc/dhcpd.conf, i did put in

>  option root-path "/boothome";

> along with the other options. also, when tagging the
> kernel image, i also have rootdir option:
> mknbi-linux zImage --output=kernel --rootdir=/boothome

> nfs export is correct, i have no idea where i did wrong.

> any clue?

> thanks in advance.
> Paul G

Nothing comes to mind, however, you may want to check into
#ltsp on irc (on OpenProjectsNet).  People there know just
about everything about etherboot and terminal servers and
so forth.

--
Space Migration
Intelligence Increase
Life Extension = SMIILE

 
 
 

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