Re: NFS how to set up properly for netboot ???

[Wolfgang Bergbauer <wolfgang.bergbauer@ibm.net>]

Vinh Lai wrote:

>            Hi all,
>
>   I am trying to set up netboot and I was able to boot the Diskless Client
> (DC) but when the kernel trying to mount it's root-FS (root file system),
> it mounted the /boot/client1/root but it wasn't able to mount the (/proc,
> /dev, /sbin, /bin /etc ...) and it prompted a message (Unable to
> open initial console).  I know that I did not set up NFS right on the
> server site with (bootptab and exports files) but I don't know how to set
> them up properly so any comment or help to correct this problem would be
> greatly appriciated,
>
> Thanks.
>
> My bootptab and exports files are as follow:
>
> (in /etc/bootptab)
> client1:hd=/boot:vm=auto:ip=130.215.17.105:\
>         :ht=ethernet:ha=12345678977a:\
>         :bf=bootImage-client1:\
>         :rp=/boot/client1/root
>
> (in /etc/exports)
> #
> # Export directories for client1 (diskless workstation)
> #
>
> /boot/client1/root                     *.wpi.edu(rw,link_absolute)
> /boot/client1/bin                      *.wpi.edu(rw,link_absolute)
> /boot/client1/sbin                     *.wpi.edu(rw,link_absolute)
> /boot/client1/lib                      *.wpi.edu(rw,link_absolute)
> /boot/client1/usr                      *.wpi.edu(rw,link_absolute)
> /boot/client1/etc                      *.wpi.edu(rw,link_absolute)
> /boot/client1/var                      *.wpi.edu(rw,link_absolute)
> /boot/client1/home                     *.wpi.edu(rw,link_absolute)
> /boot/client1/dev                      *.wpi.edu(rw,link_absolute)
>
>

Hi Vinh Lai,

I think it would be much better if you would place all these files in one root
directory like
/boot/client/root or you share directly /boot/client and you should use the
option no_root_squash,
to mount the root file system as root and not as nobody.
I tried it in a classroom setup, and all clients shared directories like /usr
which takes the most space.
Of course there are much more directories you could share without any problems.

So the simplest way ist the following:

/etc/exorts on NFS-Server

/boot/client1/root        client1(rw,no_root_squash)
/boot/client1/root        client2(rw,no_root_squash)
/boot/all/usr                *.wpi.edu(rw or what you like)

Good luck
       Wolfgang


===========================================================================
This Mail was sent to netboot mailing list by:
Wolfgang Bergbauer <wolfgang.bergbauer@ibm.net>
To get help about this list, send a mail with 'help' as the only string in
it's body to majordomo@baghira.han.de. If you have problems with this list,
send a mail to netboot-owner@baghira.han.de.