diskless feature in fedora?
Lewi
ichtus at mbone.petra.ac.id
Sat Jan 17 03:01:40 UTC 2004
On Fri, Jan 16, 2004 at 12:25:04PM +0200, Kaspars Melkis wrote:
>
> 2004-01-15 at 17:49, Lewi rakst??ja:
> > thank you, I have tried it, but still not working :(
> > would u like write some manual
> >
> > my step is, please correct me
> >
> > I have 1 server fedora OS with gigabit ethernet on board from Asus P4800,
> > and diskless client with Compaq Deskpro 6000 with tlan ethernet that using etherboot for network booting
> > (how do I know if cards is support PXE???)
> >
> > 1. copy fedora OS( / ) in server to /a/root with default kernel, mkdir /a/snapshot
>
> Where you using "rsync -a -e ssh 172.16.15.2:/ /a/root" ?
because diskless client, in the first place don't have hd,
so I copied from another ws that have already fedora installed
to /a/root
>
> It is not clear what have you done. What I did was to put hd into
> diskless client machine, installing Fedora OS on it, updating,
> configuring and tweaking it, starting sshd and then copying it to server
> with rsync. At least, it was what docs said to do.
>
> > 2. running redhat-config-nfs export /a/root /a/snapshot, starting portmap, nfs
> > checking with:
> > # rpcinfo -p
> > # exportfs
> > # cat /etc/exports
> > /a/root/ *(rw,sync,no_root_squash)
> > /a/snapshot/ *(rw,sync,no_root_squash)
> >
> > add line to /etc/hosts.allow
> > portmap:ALL
> >
> > 3. running redhat-config-netboot->diskless->create with name for example: diskless
> > 4. create a snapshot in redhat-config-netboot with name for example: 172.16.15.2
> > 5. create dhcpd.conf that contain file for boot (created by mknbi later)
> > ________________________________
> > not authoritative;
> > ddns-update-style none;
> > ignore client-updates;
> > allow booting;
> > allow bootp;
> >
> > subnet 172.16.15.0 netmask 255.255.255.0 {
> > option routers 172.16.15.1;
> > option subnet-mask 255.255.255.0;
> >
> > option domain-name "mitindo.com";
> > option domain-name-servers 172.16.15.1;
> >
> > range dynamic-bootp 172.16.15.128 172.16.15.150;
> > default-lease-time 21600;
> > max-lease-time 43200;
> >
> > # we want the nameserver to appear at a fixed address
> > host ichtus {
> > hardware ethernet 00:80:5f:2a:05:2e;
> > fixed-address 172.16.15.2;
> > next-server 172.16.15.1;
> > if substring (option vendor-class-identifier, 0, 9) = "PXEClient" {
> > filename "/thunder.zpxe";
> > } else if substring (option vendor-class-identifier, 0, 9) = "Etherboot" {
> > filename "/vmlinuz.nbi";
> > }
> > }
> > }
> > _______________________________________
> >
> > 6. starting dhcpd, tftpd
> > 7. download floppy image for booting in client in http://www.rom-o-matic.com (for mine is eb-5.2.2-thunder.zdsk)
> > # cat eb-5.2.2-thunder.zdsk > /dev/fd0
> >
> > 8. enter /tftpboot/linux-install/diskless
> > what's next????
> > where do I get /dev/ram0? rdev from vmlinuz or initrd??
>
> etherboot will load initrd from nbi image into /dev/ram0.
>
> > 9. mv vmlinuz.nbi /tftpboot/
>
> correct.
>
> > what I'm doing so long is:
> >
> > #mknbi-linux --rootdir=172.16.15.1:/a/root --ip=172.16.15.2:172.16.15.1:172.16.15.1:ichtus:eth0 --append=nfsroot=172.16.15.1:/mnt/lvmroot/root vmlinuz initrd.img > vmlinuz.nbi
>
> After you create snapshot with redhat-configure-netboot you will find a
> files /tftpboot/linux-install/pxelinux.cfg/ with name in hex numbers
> (client ip address). This is your cheatlist for parameters to create for
> nbi image.
>
> In your case it would be more like,
>
> /usr/bin/mknbi-linux --append "noauto root=/dev/ram0 init=disklessrc
> NFSROOT=172.16.15.1:/a ramdisk_size=10000 ETHERNET=eth0" vmlinuz
> initrd.img > vmlinuz.nbi
>
thank, that's solve my problem,
I have try your solution. I fault that specify nfs root with /a/root, the correct one is /a (directory
that countain root and snapshot dir), and directory for redhat-config-netboot should using
/a too, the help hint is confusing me, "enter nfs exported dir"-> nfs exported /a/root and /a/snapshot
and the problem nfs so slow(with error message still retrying), i dunno if this the real problem
I change/add ethernet 8139too with Full Duplex 100mbps, the old one is using tlan(half duplex 10mbps)
then just running well
now It's running well, until enter graphical boot
it show gdm login menu,
but gnome restart again when enter desktop, I found that because memory not enough
(diskless client compaq deskpro 6000, pentium pro, 65mb, S3 savage)
so I create swap file 256mb and set loop device for that(add script to rc.local)
so, /dev/loop0 swap swap defaults 0 0
but I think it's still slow,
what can I do to speeding up? or
just running xinit in diskless client then query from X in server?
but I still have one more problem,
cups don't want running
what list files that needed to cups running? so I can specify in snapshot/files
thank you,
and thank you to fedora too,
because I don't need add & download more packages to use diskless, and recompile kernel
so setup time will faster
> You should understand that the initial root dir is ram drive, not nfs,
> and "init=disklessrc" is important because it will mount nfs and
> snapshot directories. Check your NFSROOT again.
>
> Also there was some confusion with mknbi-linux binary. I found another
> version of mknbi-linux in /usr/local/bin that generated images I was
> unable to boot. Then I installed redhat original mknbi with "yum install
> mknbi" which installed mknbi-linux in /usr/bin, that's why I write full
> pathname. I don't know what's the differences. All I know that rpm
> version works and the other does not.
>
> I hope it helps.
>
> Kaspars Melkis
>
> http://www.isolis.lv
>
> #mknbi-linux --rootdir=172.16.15.1:/a/root
> --ip=172.16.15.2:172.16.15.1:172.16.15.1:ichtus:eth0
> --append=nfsroot=172.16.15.1:/mnt/lvmroot/root vmlinuz initrd.img >
> vmlinuz.nbi
> >
>
> > above I try with recompiled kernel that having
> > IP kernel auto configuration in Networking options, then
> > network device tlan,
> > file system->network file system->nfs file system->root nfs
> > compiled as built in kernel
> >
> > but having problem for mounting nfs root, the error messages is
> > nfs server .... not responding
> > nfs server .... still retrying
> > nfs server .....OK
> >
> > so the booting running so slow
> >
> >
> >
> > On Wed, Jan 14, 2004 at 05:59:48PM +0200, Kaspars Melkis wrote:
> > > Use the append feature when generating etherboot image and then it will
> > > work.
> > >
> > > I used the following command, but you can adjust it for your
> > > configuration:
> > >
> > > /usr/bin/mknbi-linux --append "noauto root=/dev/ram0 init=disklessrc
> > > NFSROOT=192.168.0.43:/mnt/storage/diskless/fc1 ramdisk_size=10000
> > > ETHERNET=eth0 SNAPSHOT=maya" \
> > > vmlinuz initrd.img > kernel
> > >
> > > Cheers,
> > >
> > > Kaspars
> > >
> > > 2004-01-14 at 11:52, Lewi rakst??ja:
> > > > I want to asking about redhat-config-netboot,
> > > > I have read diskless environment manual,
> > > >
> > > > my conclusion is, fedora without install any other packages like k12ltsp can't serve like netboot server
> > > > I look at kernel configuration default NFS_ROOT don't set
> > > >
> > > > system root for diskless workstation, just I copied from host installation fedora
> > > > so maybe I will d/w ltsp 4.0 or k12ltsp 4.0
> > > >
> > > > or my conclusion is wrong???
> > > >
> > > >
> > > > --
> > > > ichtus
> > > > ------
> > > > Lewi Supranata .K
> > > > ICQ: 50643061
> > > > IPLUG Team
> > > > Homepage : http://mbone.petra.ac.id/u/ichtus
> > > > GnuPG Public Key : http://mbone.petra.ac.id/u/ichtus/ichtus-keys2
> > > >
> > >
> > >
> > > --
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> >
> > --
> > ichtus
> > ------
> > Lewi Supranata .K
> > ICQ: 50643061
> > IPLUG Team
> > Homepage : http://mbone.petra.ac.id/u/ichtus
> > GnuPG Public Key : http://mbone.petra.ac.id/u/ichtus/ichtus-keys2
> >
>
>
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--
ichtus
------
Lewi Supranata .K
ICQ: 50643061
IPLUG Team
Homepage : http://mbone.petra.ac.id/u/ichtus
GnuPG Public Key : http://mbone.petra.ac.id/u/ichtus/ichtus-keys2
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