[How to] PXE boot Server

**nevel** · 08-03-2009, 10:16

Hello!

I've made everything as written in this instruction, but after booting with network machine getting ip, mask, gateway, dhcp and then starting TFTP.
But it ends after timeout and machine writes PXE-E32^ TFTP Open timeout.

chmod doesn't help...
Can someone help, please?

**gouryella** · 08-03-2009, 11:59

Originally Posted by nevel

Hello!

I've made everything as written in this instruction, but after booting with network machine getting ip, mask, gateway, dhcp and then starting TFTP.
But it ends after timeout and machine writes PXE-E32^ TFTP Open timeout.

chmod doesn't help...
Can someone help, please?

check(remap is for Vista PE):
nano /opt/etc/xinetd.d/tftp

Code:


service tftp
{
       flags            = REUSE
       socket_type      = dgram
       protocol         = udp
       instances        = 30
       wait             = yes
       user             = root
       server           = /opt/sbin/in.tftpd
       server_args = -s /opt/tftpboot -m /opt/tftpboot/tftpd.remap -vvv
       cps              = 100 2
       log_on_success   = HOST PID
       log_on_failure   = HOST
       disable          = no
}

nano /etc/dnsmasq.conf (only last line is important)

Code:

user=nobody
resolv-file=/tmp/resolv.conf
no-poll
interface=br0
domain=asus
expand-hosts
no-negcache
dhcp-leasefile=/tmp/dnsmasq.log
dhcp-range=lan,192.168.1.2,192.168.1.254,86400
dhcp-option=lan,15,asus
read-ethers
dhcp-authoritative
dhcp-boot=pxelinux.0,asus,192.168.1.1

check if you have same domain and own username in your asus

dhcp-boot=pxelinux.0,asus,192.168.1.1

check from windows or inside router if transfer is succes:
tftp 192.168.1.1 GET pxelinux.0
tftp 192.168.1.1 -c get pxelinux.0 (linux)

btw: the tftp server can be on other PC(with windows) outside router like:
dhcp-boot=pxelinux.0,asus,ip where tftpd server running

Attached Files: folder with pxelinux.0, memdisk, configs, with working reduced image of dos

**nevel** · 09-03-2009, 13:40

I'm affraid that the trouble is in the server part, because there is no process in.tftpd and if I run it manualy - it doesn't start, just trying as I understood, but router is alive and working. How much RAM does it need?

**gouryella** · 09-03-2009, 17:46

Originally Posted by nevel

I'm affraid that the trouble is in the server part, because there is no process in.tftpd and if I run it manualy - it doesn't start, just trying as I understood, but router is alive and working. How much RAM does it need?

in.tftpd is started from xine server, can not run manualy it apear only if needed

did you check:
tftp 192.168.1.1 GET pxelinux.0
tftp 192.168.1.1 -c get pxelinux.0 (linux)

nano /opt/etc/xinetd.conf

Code:

defaults
{
        only_from      = localhost 192.168.1.0/24
        instances      = 60
        log_type       = SYSLOG authpriv info
        log_on_success = HOST PID
        log_on_failure = HOST
        cps            = 25 30
}
includedir /opt/etc/xinetd.d
# in this dir is tftp config file

nano /opt/etc/init.d/S10xinetd

Code:

#! /bin/sh
#
# Startup script for xinetd
#
prefix=/opt
sbindir=${prefix}/sbin

NAME=xinetd
DAEMON=${sbindir}/${NAME}
DESC="xinetd"
PIDFILE="/var/run/xinetd.pid"
OPTIONS="-pidfile $PIDFILE"
CONFDIR="/opt/etc/xinetd.d"

# installation check
test -x ${DAEMON} || exit 0

case "$1" in
    start)
        if [ -z "`pidof ${NAME}`" ] ; then
            printf "Starting ${DESC}: "
            ${DAEMON} ${OPTIONS}
            printf "${NAME}.\n"
        fi
    ;;
    stop)
        if [ -n "`pidof ${NAME}`" ]; then
          printf "Stopping ${DESC}: "
          kill -SIGTERM `cat $PIDFILE`
          printf "${NAME}.\n"
          for i in ${CONFDIR}/* ; do
            if [ -n "`grep 
"^[[:space:]]*disable[[:space:]]*=[[:space:]]*no" ${i}`" ] ; then
              daemon="`basename $(awk -F= 
'/^[[:space:]]*server[[:space:]]*=[[:space:]]*.*/{print $2}' ${i})`"
              printf "Stopping ${daemon}: "
              kill "`pidof ${daemon}`" > /dev/null 2>&1
              printf "${daemon}.\n"
            fi
          done
        fi
    ;;
    reload|reconfigure)
        if [ -n "`pidof ${NAME}`" ]; then
            printf "Reloading ${DESC}: "
            kill -SIGHUP `cat $PIDFILE`
            printf "${NAME}.\n"
        fi
    ;;
    restart|force-reload)
        $0 stop
        sleep 1
        $0 start
    ;;
    *)
        printf "Usage: $0 
{start|stop|reload|reconfigure|restart|force-reload}\n" >&2
        exit
    ;;
esac

exit 0

try to run xine and watch for errors

Code:

cd /opt/etc/init.d/
sh S10xinetd start

tftp not eat any ram

**andrei.pop** · 19-03-2009, 08:45

Hello,

I tried this tutorial but it doesn't seem to work for me, a little help would be appreciated.

I have the following network configuration:

Speedtouch ADSL 4 port (DHCP enabled) (192.168.1.1)
|
Asus WL-500gP using Oleg 1.9.2.7-10, connected to Speedtouch (192.168.1.2)
|
Asus GigaX1105N gigabit switch, connected to Asus WL-500gP

I have one desktop connected directly in the gigabit switch and I tried to do e PXE boot but it failed, couldn't see the error message, but I guess it could not connect to TFTP server on wl500gp.

I tried testing the tftp like above, first doing a tftp get request from wl500gp ssh (it worked), and then from my Asus laptop connected wireless to wl500gp (it didn't worked, timeout, but i could see an entry in the router log saying something like Xinetd tftp started from 192.168.1.3 - the ip of my laptop).

I also modified something /opt/etc/xinetd.d/tftp. user = root doesn't seem to work because there is no such user (this is what was written in the log), so i changed it from "root" to "admin".

So, bottom line,

tftp 192.168.1.2 GET pxelinux.0 (windows) - failed
tftp 192.168.1.2 -c get pxelinux.0 (linux) - ok
pxe boot using desktop - failed

Does anybody have an ideea?

Thanks!

**gouryella** · 19-03-2009, 10:21

Originally Posted by andrei.pop

Hello,

I tried this tutorial but it doesn't seem to work for me, a little help would be appreciated.

I have the following network configuration:

Speedtouch ADSL 4 port (DHCP enabled) (192.168.1.1)
|
Asus WL-500gP using Oleg 1.9.2.7-10, connected to Speedtouch (192.168.1.2)
|
Asus GigaX1105N gigabit switch, connected to Asus WL-500gP

I have one desktop connected directly in the gigabit switch and I tried to do e PXE boot but it failed, couldn't see the error message, but I guess it could not connect to TFTP server on wl500gp.

I tried testing the tftp like above, first doing a tftp get request from wl500gp ssh (it worked), and then from my Asus laptop connected wireless to wl500gp (it didn't worked, timeout, but i could see an entry in the router log saying something like Xinetd tftp started from 192.168.1.3 - the ip of my laptop).

I also modified something /opt/etc/xinetd.d/tftp. user = root doesn't seem to work because there is no such user (this is what was written in the log), so i changed it from "root" to "admin".

So, bottom line,

tftp 192.168.1.2 GET pxelinux.0 (windows) - failed
tftp 192.168.1.2 -c get pxelinux.0 (linux) - ok
pxe boot using desktop - failed

Does anybody have an ideea?

Thanks!

remove 1Gb switch and connect directly pc to wl500, the user=root is good note...
dnsmasq.conf must be:
dhcp-boot=pxelinux.0,asus,192.168.1.2

**andrei.pop** · 19-03-2009, 10:34

I will try to remove 1Gb switch and connect directly pc to wl500, but what i find strange is that i couldn't connect to TFTP even when using my laptop connected wireless directly to my wl500.

This line "dhcp-boot=pxelinux.0,asus,192.168.1.2" is ok, it is exactly as i have it in the config.

I will keep you posted if it worked without the switch or not.

Thanks!

**gouryella** · 19-03-2009, 13:03

Originally Posted by andrei.pop

I will try to remove 1Gb switch and connect directly pc to wl500, but what i find strange is that i couldn't connect to TFTP even when using my laptop connected wireless directly to my wl500.

This line "dhcp-boot=pxelinux.0,asus,192.168.1.2" is ok, it is exactly as i have it in the config.

I will keep you posted if it worked without the switch or not.

Thanks!

pxe is imposible by wireless, but tftp must work

**gouryella** · 19-03-2009, 13:07

Originally Posted by andrei.pop

I will try to remove 1Gb switch and connect directly pc to wl500, but what i find strange is that i couldn't connect to TFTP even when using my laptop connected wireless directly to my wl500.

This line "dhcp-boot=pxelinux.0,asus,192.168.1.2" is ok, it is exactly as i have it in the config.

I will keep you posted if it worked without the switch or not.

Thanks!

pxe is imposible by wireless, use ethernet, but tftp must work
sorry if:
tftp 192.168.1.2 -c get pxelinux.0 work inside router and
in /etc/dnsmasq.conf is at the end: dhcp-boot=pxelinux.0,asus,192.168.1.2
(asus is a Host Name in ip config LAN IP Setting in web interface)
i can't provide any other help

**andrei.pop** · 19-03-2009, 13:27

I know that wireless pxe is not possible, of course, what i was saying was that i tried to connect to tftp from the laptop using vista tftp client and i couldn't connect. From within asus it was ok.

But i will try to remove the switch from the schema and see how it works.

Thanks

**andrei.pop** · 19-03-2009, 21:37

So finally i managed to get it working but only in a VMWARE machine. I started DOS 6.22, Damn Small Linux etc.

I didn't removed the switch from the schema, but I disabled the dhcp service on the speedtouch modem and enabled it on wl500. Still, my 2 desktop machines do not boot from dhcp, only the vmware machine.

Why?

**gouryella** · 21-03-2009, 17:33

now i am thinking about booting ubuntu using pxe/tftp and nfs server

**andrei.pop** · 22-03-2009, 00:12

That would be great. If you succeed please post here how you did it.

**wpte** · 22-03-2009, 13:58

Originally Posted by gouryella

now i am thinking about booting ubuntu using pxe/tftp and nfs server

you do know, that you need to have at least 1.2GB ram to run ubuntu properly if you want to do that?
since the image is going to be placed on the RAM (about 700MB) and then it will need 512MB ram to run...

so... it will load up slowly and ubuntu is not really a live linux distro

**gouryella** · 22-03-2009, 15:48

Originally Posted by wpte

you do know, that you need to have at least 1.2GB ram to run ubuntu properly if you want to do that?
since the image is going to be placed on the RAM (about 700MB) and then it will need 512MB ram to run...

so... it will load up slowly and ubuntu is not really a live linux distro

yes it will load slowly ~3MB/s, but boot image takes about 8(initrd.gz) + 2MB(vmlinuz) other files load directly to ram(not ramdisk) only if needet fron nfs, i thing.
now i have problems with nfs server, export list not work well & no smart tutorial is here in english...

nfs is working now for me

Code:

/opt/nfs/ 192.168.1.1/24(rw,insecure,sync,all_squash,anonuid=0,anongid=0)

the next step is in this tutorial, just follow it:
https://help.ubuntu.com/community/DisklessUbuntuHowto

sorry guys i freeze on NFS over TCP is not running on the router, mean that nfs is ok but some rpc service is not installed :-(

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