On Fri, Dec 6, 2013 at 6:39 PM, Allan Wu <al...@cs.ucla.edu> wrote: > Hello, > > I got a problem of starting PXELINUX with gPXE using HTTP server. I am > trying to setup a diskless system using gPXE. I intend for all the client > machines to use static IP in the network, and our network already have a > DHCP server which is difficult for me to modify. So I want to use gPXE to > assign static IP for my client machine and obtain image from a HTTP server. > > In gPXE, I can successfully load the pxelinux.0 file and execute it. > However, PXELINUX then reported an error saying "Unable to locate > configuration file". I tried with several versions but got similar problems. > > In general, I want to set each client with static IP to get around the DHCP > server, which seems to work for getting the images. I also tried to load the > initrd image and vmlinuz kernel directly. But I got error saying the kernel > cannot find ramdisk. I think I need to use the parameters such as 'initrd=' > and 'root=' when booting the kernel. Is there a way to do that with gPXE > along? I'm open to other alternatives, since my approach may be limited on > my lack of knowledge. > > My setup looks like this: > > - On the HTTP server: > http://xxxx.xxx.xxx/xxx/tftpboot/ ~ this is the root directory for the > pxelinux file > ./pxelinux.0 > ./pxelinux.cfg/default > ./centos6/ ~ this directory contains the ramdisk > image and kernel > > The pxelinux configure file looks something like this: > > default rhel6 > label rhel6 > kernel centos6/vmlinuz > append initrd=centos6/diskless_initrd.img > root=nfs:xxx.xxx.xxx.xxx:/diskless/x86_64/RHEL6/root/ rw > > - For my client, I embedded a static.gpxe script looks something like this: > #! gpxe > ifclose net0 > set net0/ip xxx.xxx.xxx.xxx > set net0/netmask xxx.xxx.xxx.xxx > set net0/gateway xxx.xxx.xxx.xxx > set net0/dns xxx.xxx.xxx.xxx > ifopen net0 > set 209:string pxelinux.cfg/default > set 210:string http://xxx.xxx.xxx/xxx/tftpboot/ > chain ${210:string}pxelinux.0 > > After this the PXELINUX is booted, but then failed on the error. I was using > PXELINUX 4.02. For newer version, I also tried 5.10, but then PXELINUX > stucks on the first line (version and copyright stuff).
How are you loading gPXE, from floppy/ISO/USB? For a first test, I'd suggest a different version of PXELINUX. Having seen numerous bugfixes on sysli...@zytor.com, I'd suggest starting with the precompiled binaries from the binary/source archive at kernel.org and using 4.07. If you want to try 5.1x, you can either use gPXE to load core/pxelinux.0 via HTTP then com32/elflink/ldlinux/ldlinux.c32 (yes, it needs that before the configuration file) OR set DHCP option 210 (direct or encapsulated) on your DHCP server and load core/lpxelinux.0 from TFTP then all other files relative to the prefix in 210. I'd suggest version 5.11-pre9 for your first test of a 5.1x version. Also, if you wanted to try 6.0x, either 6.02 or 6.01, either bios/core/pxelinux.0 or bios/core/lpxelinux.0 with bios/com32/elflink/ldlinux/ldlinux.c32 -- -Gene _______________________________________________ gPXE mailing list gPXE@etherboot.org http://etherboot.org/mailman/listinfo/gpxe
