How to configure Diskless environment in CentOS
5.1. Please help me out
*
Regards,
Gopinath M
Signal Networks Pvt.
Ltd.
*

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On 10/04/2008, gopinath <gopinath@signal-networks.com> wrote:
>
> How to configure Diskless environment in CentOS 5.1. Please help me out
>
Diskless? Like in no floppy / thumb drives or diskless like in network booting?
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Read http://blog.sudev.in for topics ranging from here to there.
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gopinath wrote:

How to configure Diskless environment in CentOS 5.1. Please help me out



If you want a thin client setup (diskless machines only run X and log
into the server), the easy way is to install the k12ltsp version that
has a centos base (version 5-EL from the download link here
http://k12ltsp.org/mediawiki/index.php/Main_Page). If you want to NFS
mount disks from the server and run everything on the clients or boot a
single image on a cluster, look at http://drbl.sourceforge.net/.
You can do either of these with the tools included in Centos yourself,
but since it is fairly complicated it is probably worth trying one or
both of these first.


--
Les Mikesell
lesmikesell@gmail.com
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On Thu, 2008-04-10 at 17:30 +0530, gopinath wrote:
> How to configure Diskless environment in CentOS 5.1. Please help me
> out
>

Have a look at The Linux Terminal Server Project.
http://www.ltsp.org/ That's is about the easiest configuration out.

You can use rsync to make the Client OS Layout and manually edit all
files as needed, pxe dhcp nfs and tftp. It's a nightmare to do.

An alternative method would be obtain the "system-config-netboot"
package from Fedora Core 6 or 7 that's if you can get it to work
correctly. Red Hat omitted it in v5.0 and also I think in 5.1. Bugzilla
on red hat says they are going to release it in a later release.

IMHO I believe it is getting replaced by cobbler. Any one on the list
know for sure?

> Regards,
> Gopinath M
> Signal Networks Pvt. Ltd.
>
>
> Smile... it increases your face value!
>
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> http://lists.centos.org/mailman/listinfo/centos
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Hash: SHA1

gopinath wrote:
> How to configure Diskless environment in CentOS 5.1. Please help me out


I have a small guide to setting up an NFS server and then dishing out
diskless clients across PXE booting. It's out of date as I've not had
time to update it to pertain to CentOS 5.1 explicitly, but it should be
relevant and almost the same.

<http://www.maxsworld.org/index.php/how-tos/rhel-diskless-clients>

Regards,
Max
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Hi

according to the configuration defined in the below link i had configured
on my PC.
But when i do network boot on diskless Pc.

It obtains ip from dhcp server
then it also loads the defaults file in the pxelinux.cfg directory kept on
the tftp server

then it displays

Welcome to Redhat Network Install

some snake symbol

then
Enter the number of the Operation system for network install

0: Local Disk

boot:
Loading from the local disk..


please help me out is there anything extra to be done ..


----- Original Message -----
From: "Max Hetrick" <maxhetrick@verizon.net>
To: "CentOS mailing list" <centos@centos.org>
Sent: Thursday, April 10, 2008 7:35 PM
Subject: Re: [CentOS] Diskless Environment


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> gopinath wrote:
> > How to configure Diskless environment in CentOS 5.1. Please help me out
>
>
> I have a small guide to setting up an NFS server and then dishing out
> diskless clients across PXE booting. It's out of date as I've not had
> time to update it to pertain to CentOS 5.1 explicitly, but it should be
> relevant and almost the same.
>
> <http://www.maxsworld.org/index.php/how-tos/rhel-diskless-clients>
>
> Regards,
> Max
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.5 (GNU/Linux)
>
> iD8DBQFH/h66IXSX/6LmsXkRAusTAJ46JmTQ/hlZU9jTz3oE+Uj+iml/ZgCfXMlY
> 3z719a1JbS3xlFt/r0g/V38=
> =x88X
> -----END PGP SIGNATURE-----
> _______________________________________________
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
>


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On Wed, 2008-04-16 at 12:58 +0530, gopinath wrote:
> Hi
>
> according to the configuration defined in the below link i had configured
> on my PC.
> But when i do network boot on diskless Pc.
>
> It obtains ip from dhcp server
> then it also loads the defaults file in the pxelinux.cfg directory kept on
> the tftp server
>
> then it displays
>
> Welcome to Redhat Network Install

Well, what are you after? A Network Install or Diskless Install? If you
want a Diskless Environment then you need to reconfigure your server. Do
you have /etc/exports configured? You need to give a little bit more
info on what you have done so far.

>
> some snake symbol
>
> then
> Enter the number of the Operation system for network install
>
> 0: Local Disk
>
> boot:
> Loading from the local disk..
>
>
> please help me out is there anything extra to be done ..
>
>
> ----- Original Message -----
> From: "Max Hetrick" <maxhetrick@verizon.net>
> To: "CentOS mailing list" <centos@centos.org>
> Sent: Thursday, April 10, 2008 7:35 PM
> Subject: Re: [CentOS] Diskless Environment
>
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > gopinath wrote:
> > > How to configure Diskless environment in CentOS 5.1. Please help me out
> >
> >
> > I have a small guide to setting up an NFS server and then dishing out
> > diskless clients across PXE booting. It's out of date as I've not had
> > time to update it to pertain to CentOS 5.1 explicitly, but it should be
> > relevant and almost the same.
> >
> > <http://www.maxsworld.org/index.php/how-tos/rhel-diskless-clients>
> >
> > Regards,
> > Max
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.5 (GNU/Linux)
> >
> > iD8DBQFH/h66IXSX/6LmsXkRAusTAJ46JmTQ/hlZU9jTz3oE+Uj+iml/ZgCfXMlY
> > 3z719a1JbS3xlFt/r0g/V38=
> > =x88X
> > -----END PGP SIGNATURE-----
> > _______________________________________________
> > CentOS mailing list
> > CentOS@centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> >
>
>
> _______________________________________________
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
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~/john

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> Hi
>
> according to the configuration defined in the below link i had configured
> on my PC.
> But when i do network boot on diskless Pc.
>
> It obtains ip from dhcp server
> then it also loads the defaults file in the pxelinux.cfg directory kept on
> the tftp server
>
> then it displays
>
> Welcome to Redhat Network Install
>
> some snake symbol
>
> then
> Enter the number of the Operation system for network install
>
> 0: Local Disk
>
> boot:
> Loading from the local disk..
>
>
> please help me out is there anything extra to be done ..
>
>
> ----- Original Message -----
> From: "Max Hetrick" <maxhetrick@verizon.net>
> To: "CentOS mailing list" <centos@centos.org>
> Sent: Thursday, April 10, 2008 7:35 PM
> Subject: Re: [CentOS] Diskless Environment
>
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > gopinath wrote:
> > > How to configure Diskless environment in CentOS 5.1. Please help me
out
> >
> >
> > I have a small guide to setting up an NFS server and then dishing out
> > diskless clients across PXE booting. It's out of date as I've not had
> > time to update it to pertain to CentOS 5.1 explicitly, but it should be
> > relevant and almost the same.
> >
> > <http://www.maxsworld.org/index.php/how-tos/rhel-diskless-clients>
> >
> > Regards,
> > Max
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.5 (GNU/Linux)
> >
> > iD8DBQFH/h66IXSX/6LmsXkRAusTAJ46JmTQ/hlZU9jTz3oE+Uj+iml/ZgCfXMlY
> > 3z719a1JbS3xlFt/r0g/V38=
> > =x88X
> > -----END PGP SIGNATURE-----
> > _______________________________________________
> > CentOS mailing list
> > CentOS@centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> >
>


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yes i have configured /etc/exports

/srv/diskless/i386/RHEL4S/root/ *(rw,sync,no_root_squash)
/srv/diskless/i386/RHEL4S/snapshot *(rw,sync,no_root_squash)

1. nfs server is configured
2. tftp server is configured
3. dhcp server is also configured.

i executed command

pxeos -a -i "centos5" -D 1 -p NFS -s <ip address of nfs server> -L
/srv/diskless/i386/RHEL4S/ -k 2.6.18-53.el5 centos5

the above command was also executed without any errors.


----- Original Message -----
From: "John" <jses27@gmail.com>
To: "CentOS mailing list" <centos@centos.org>
Sent: Wednesday, April 16, 2008 1:27 PM
Subject: Re: [CentOS] Diskless Environment


> On Wed, 2008-04-16 at 12:58 +0530, gopinath wrote:
> > Hi
> >
> > according to the configuration defined in the below link i had
configured
> > on my PC.
> > But when i do network boot on diskless Pc.
> >
> > It obtains ip from dhcp server
> > then it also loads the defaults file in the pxelinux.cfg directory kept
on
> > the tftp server
> >
> > then it displays
> >
> > Welcome to Redhat Network Install
>
> Well, what are you after? A Network Install or Diskless Install? If you
> want a Diskless Environment then you need to reconfigure your server. Do
> you have /etc/exports configured? You need to give a little bit more
> info on what you have done so far.
>
> >
> > some snake symbol
> >
> > then
> > Enter the number of the Operation system for network install
> >
> > 0: Local Disk
> >
> > boot:
> > Loading from the local disk..
> >
> >
> > please help me out is there anything extra to be done ..
> >
> >
> > ----- Original Message -----
> > From: "Max Hetrick" <maxhetrick@verizon.net>
> > To: "CentOS mailing list" <centos@centos.org>
> > Sent: Thursday, April 10, 2008 7:35 PM
> > Subject: Re: [CentOS] Diskless Environment
> >
> >
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA1
> > >
> > > gopinath wrote:
> > > > How to configure Diskless environment in CentOS 5.1. Please help me
out
> > >
> > >
> > > I have a small guide to setting up an NFS server and then dishing out
> > > diskless clients across PXE booting. It's out of date as I've not had
> > > time to update it to pertain to CentOS 5.1 explicitly, but it should
be
> > > relevant and almost the same.
> > >
> > > <http://www.maxsworld.org/index.php/how-tos/rhel-diskless-clients>
> > >
> > > Regards,
> > > Max
> > > -----BEGIN PGP SIGNATURE-----
> > > Version: GnuPG v1.4.5 (GNU/Linux)
> > >
> > > iD8DBQFH/h66IXSX/6LmsXkRAusTAJ46JmTQ/hlZU9jTz3oE+Uj+iml/ZgCfXMlY
> > > 3z719a1JbS3xlFt/r0g/V38=
> > > =x88X
> > > -----END PGP SIGNATURE-----
> > > _______________________________________________
> > > CentOS mailing list
> > > CentOS@centos.org
> > > http://lists.centos.org/mailman/listinfo/centos
> > >
> >
> >
> > _______________________________________________
> > CentOS mailing list
> > CentOS@centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> --
> ~/john
>
> OpenPGP Sig:BA91F079
>
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gopinath wrote:
> > > > > How to configure Diskless environment in CentOS 5.1. Please help me
> out...

Ignore my previous post to you. I see your problem and it did not
register in my brain untill today. This will not work in CentOS 5.0 or
5.1. Currently there is no workaround that is *KNOWN* to just work. That
is using the "system-config-netboot package".

You can take and do everything in the following link for the Latest
CentOS version 4 Update 6 and it will just plain out work.
http://wiki.centos.org/HowTos/DisklessClients . The only other option
you have if you have to run CentOS 5 and > is to use Cobbler. Cobbler is
available in the CentOS Testing repository but there is very slim
support for it. More information is available from here:
http://cobbler.et.redhat.com/ .

John





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