Re: Netboot E250 -- tftp problem
Op 22-01-2008 om 11:01 schreef Hero_xbd!.RRR: Geert Stappers wrote: My advise is to check the version the tftpd server. Over here says `dpkg -l tftpd-hpa` that I'm using version 0.48-1. For reference you may wireshark http://www.stappers.nl/gst/temporary/e250/rodebes.pcap Rodebes is the hostname of an Ultra5 at address 172.24.0.15 Greet, Great, is is actual Geert By the way, I prefer 'stappers', it goes back to the mid 1990 when I on the same mailinglist as Geert Uyterhoeven. With 'stappers' it is unambiguous which Geert is meant. Stappers is also my IRC nickname and Debian account name. I have followed your instructions, and the memory seems to be alright. (it fills 55 and aa as expected) I have removed -r blocksize and it gives no difference. (Maybe I should try out inetd? Almost all the documents around the net netbooting sparc use inetd instead of standalone tftpd.) I have also checked the version: Openboot 3.12 tftpd-hpa 0.48-1 I compared the .pcap file with yours, and it seems there is no difference except for the check sum error. (Wireshark said 'maybe caused by UDP checksum offload? ' -- what does that mean? Can it give us some clue?) Over here I can't reproduce the error when the TFTP server is standalone. Still it is a good thing try how the TFTP server behaves under inetd. Because netbooting SUNs is a working thing, I'm curious what blocks it this time. Could it be firewall software on the TFTP server? Cheers Geert Stappers -- Bonus points for respecting the discussion order (in other words: Reply _below_ the text ... ) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Geert Stappers wrote: By the way, I prefer 'stappers', it goes back to the mid 1990 when I on the same mailinglist as Geert Uyterhoeven. With 'stappers' it is unambiguous which Geert is meant. Stappers is also my IRC nickname and Debian account name. OK, stappers. I'm sorry that I don't quite familiar with Latin names. I will be careful. Because netbooting SUNs is a working thing, I'm curious what blocks it this time. Me too. Could it be firewall software on the TFTP server? I am using fail2ban[1] on the TFTP server, which functions on iptables and is supposed to modify only ftp ftps ftp-data ftps-data sshports. Except it, I did not do anything with firewall. Oh, maybe I should use a shiny minimum debian mechine to act as the TFTP server. That will eliminate various potential blocks. Is it possible the NICs and Net Switch produce the problem? Does the working rarp session eliminate all the possibility? Stappers, I have noticed that your .pcap file also has one packet with checksum error. Does it infer that checksum error is in some degree irrelevant? 1. http://www.fail2ban.org -- 续本达 Xu, Benda Fundamental Science of Mathematics and Physics, Tsinghua University, Beijing, P.R.China http://learn.tsinghua.edu.cn:8080/2005012177/index.html http://thirsty.phys.tsinghua.edu.cn/MyWiki/heroxbd -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Op 22-01-2008 om 21:31 schreef Hero_xbd!.RRR: Geert Stappers wrote: Could it be firewall software on the TFTP server? I am using fail2ban[1] on the TFTP server, which functions on iptables and is supposed to modify only ftp ftps ftp-data ftps-data sshports. Except it, I did not do anything with firewall. Right now, we don't known what is blocking us, we have to put fail2ban on the list of suspects ... Oh, maybe I should use a shiny minimum debian mechine to act as the TFTP server. That will eliminate various potential blocks. I think that is a very good option. Is it possible the NICs and Net Switch produce the problem? Unlikely, but put it the bottom of the list with suspects. Does the working rarp session eliminate all the possibility? The RARP session was indeed succesfull. But RARP is on a different network layer as TFTP is. So it could indeed that a network component like a switch, does screw TFTP, but doesn't mangle RARP Stappers, I have noticed that your .pcap file also has one packet with checksum error. Does it infer that checksum error is in some degree irrelevant? Rechecking http://www.stappers.nl/gst/temporary/e250/rodebes.pcap reveals indeed a checksum error. However it is the last TFTP block of the file. The block size is 28, not the regular 512. The download is succesfull, the program works fine and there is surely not 'Data access error'. I just did `ls /var/lib/tftpboot/AC18000F` to get less then 512 bytes in the file that my Sparc (at address 172.24.0.15) downloads with the 'ok' prompt command `load net`. The single TFTP packet had according wireshark also a checksum error, but the transfer was fine. ( checked with `4000 200 55 fill`, `load net` and `4000 200 dump` ) 1. http://www.fail2ban.org Cheers Geert Stappers P.S. About latin names: It is indeed common to use the first name, it is just me who choose an uncommon family name as nick name. P.P.S. I'm subscribed to the mailinglist -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
On Tue, 2008-01-22 at 21:31 +0800, Hero_xbd!.RRR wrote: snip I am using fail2ban[1] on the TFTP server, which functions on iptables and is supposed to modify only ftp ftps ftp-data ftps-data sshports. Except it, I did not do anything with firewall. Apologies if I'm telling you something you already know but that would mean your TFTP server isn't protected. Oh, maybe I should use a shiny minimum debian mechine to act as the TFTP server. That will eliminate various potential blocks. Is it possible the NICs and Net Switch produce the problem? Does the working rarp session eliminate all the possibility? This seems vaugely familiar. I have a vauge memory of having problems getting a Sun machine to netboot and finding out it was a cabling problem. Have you tried swaping the Sun machine for another boxen and pulling the netboot file from the server? This should tell you if it's a cabling / switch problem. HTH Cheers, - Martin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Hero_xbd!.RRR napsal(a): Hi, everybody! I am trying to install a debian-sparc system on an old Enterprise 250(E250) in our lab. The CD-ROM on E250 is broken, so I need to do netboot and installation. The problem is when netboot, there are problem with tftp downloading. What I have done: 1. Setup a netboot server(Debian Sid i386), with rarpd and tftpd-hpa. 1.1. Edit /etc/ether and start rarpd. 1.2. Start tftpd-hpa(standalone, without inetd) with -l -s /tftpboot -r blksize option(edited in /etc/default/tftpd-hpa). 1.3. Getting a file from tftp server at another workstation works. 2. Turn on E250(in the same LAN as netboot server), Press Stop-A to get the OPENBOOT prompt, issueboot net, it reads that: Boot device:/[EMAIL PROTECTED],4000/[EMAIL PROTECTED],1 File and Args: Time out waiting for ARP/RARP packet 4200 Data Access Error and throw me to the ok prompt again. 3.1 To solve the problem, I did net-watch-all in E250's OPENBOOT prompt, it returned no error. 3.2 I used Wireshark(aka. ethereal) to sniffer network packets, It shows that E250 has issued a RARP query, and netboot server has respond one then E250 has got an IP address(But when I ping from netboot server to E250, it gives no response). Then E250 has queried an image file named according to its newly received IP address(hexadecimal, I can also see in tftp's log this request), but when netboot server respond with the tftp packet, wireshark shows the udp packet encapsuring tftp data has udp checksum error 4. The hardware of netboot server is: CPU: Intel Cereron 1.7 Ghz Chipset: Intel i845G NIC: Realtek 8139 I don't know what to do now, I have tried everything I know and everything I can find on the net, but still stack with this problem. Please give me some suggestions. Thanks in advance! I don't know if my advice help you, but I use netboot on E250 and E450 and Ultra 20 and Ultra 5 many times without problem.But first thing that I do is upgrading OPB to latest version and switch to DHCP :-) I download OPB firmware from sunsolve put it on tftp server and boot it to upgrade OPB it works great and I use it. Dan -- Mydatex s r.o. http://www.mydatex.cz email: [EMAIL PROTECTED] mob: 604200362 tel: 226210085 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
netboot E250
Sorry, but it'snt an I386 that you should install : I386 is an INTEL processor, meanwhile on a sun it's a SPARC processor, a RISC processor . -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Hi, Hero_xbd!.RRR píše v Po 21. 01. 2008 v 15:43 +0800: 3.2 I used Wireshark(aka. ethereal) to sniffer network packets, It shows that E250 has issued a RARP query, and netboot server has respond one then E250 has got an IP address(But when I ping from netboot server to E250, it gives no response). Then E250 has queried an image file named according to its newly received IP address(hexadecimal, I can also see in tftp's log this request), but when netboot server respond with the tftp packet, wireshark shows the udp packet encapsuring tftp data has udp checksum error you have similar problems, I had to face. I had to (re)start the tftp server right after first tftp request from the sun workstation. Then everything worked well. It is truth, that this is not usable, if you want to boot from network regularly, but for installation it was enough. Good luck Jachym -- Jachym Cepicky e-mail: [EMAIL PROTECTED] URL: http://les-ejk.cz GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub signature.asc Description: Toto je digitálně podepsaná část zprávy
Re: netboot E250
Eric Rapilly wrote: Sorry, but it'snt an I386 that you should install : I386 is an INTEL processor, meanwhile on a sun it's a SPARC processor, a RISC processor . Eric, I am using the sparc64 netboot image found here: http://ftp.se.debian.org/debian/dists/testing/main/installer-sparc/current/images/sparc64/netboot/2.6/boot.img (I guess this is just the same as stable netboot image.) I guess it is the right file for Sun4u (UltraSPARC II 300Mhz) architecture. But I have not gone that far. Right now no file can be transfered to the Sparc box through TFTP without error, whether an i386 or a sparc netboot image. Cheers, -- 续本达 Xu, Benda Fundamental Science of Mathematics and Physics, Tsinghua University, Beijing, P.R.China http://learn.tsinghua.edu.cn:8080/2005012177/index.html http://thirsty.phys.tsinghua.edu.cn/MyWiki/heroxbd -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Martin wrote: Apologies if I'm telling you something you already know but that would mean your TFTP server isn't protected. But does that metter? We just want to get the SUN box to netboot, don't we? This seems vaugely familiar. I have a vauge memory of having problems getting a Sun machine to netboot and finding out it was a cabling problem. Have you tried swaping the Sun machine for another boxen and pulling the netboot file from the server? This should tell you if it's a cabling / switch problem. I have successfully pulled the files through TFTP to my PC in dormitory (TFTP server is at lab). Does it infer there is no problem here? -- 续本达 Xu, Benda Fundamental Science of Mathematics and Physics, Tsinghua University, Beijing, P.R.China http://learn.tsinghua.edu.cn:8080/2005012177/index.html http://thirsty.phys.tsinghua.edu.cn/MyWiki/heroxbd -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
On Wed, Jan 23, 2008 at 09:38:30AM +0800, Hero_xbd!.RRR wrote: Martin wrote: But does that metter? We just want to get the SUN box to netboot, don't we? This seems vaugely familiar. I have a vauge memory of having problems getting a Sun machine to netboot and finding out it was a cabling problem. Have you tried swaping the Sun machine for another boxen and pulling the netboot file from the server? This should tell you if it's a cabling / switch problem. I have successfully pulled the files through TFTP to my PC in dormitory (TFTP server is at lab). Does it infer there is no problem here? Are you using tftpd-hpa? I know that with MIPS, IIRC, other tftp servers didn't work. I have encoutered that problem before. I seem to recall some discussion (possibly on debian-mips) about explicitly recommending tftpd-hpa in the installation manual, but it doesn't seem to. Jacob -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Martin wrote: On Wed, 2008-01-23 at 09:38 +0800, Hero_xbd!.RRR wrote: This seems vaugely familiar. I have a vauge memory of having problems getting a Sun machine to netboot and finding out it was a cabling problem. Have you tried swaping the Sun machine for another boxen and pulling the netboot file from the server? This should tell you if it's a cabling / switch problem. I have successfully pulled the files through TFTP to my PC in dormitory (TFTP server is at lab). Does it infer there is no problem here? That depends on the architecture of the network. If it's something like this: PC in dorm -- ... some network ... -- switch -- server ^ | | V E250 (Where arrows are ethernet cables) then you will have tested all but the cable that goes from the switch to the E250. If your topology is different then what you have tested will be different. Hmm, I think I can interchange the cable of E250 and server to test(The Switch is not accessible to me now) PS If you get really stuck netbooting, you could pull the disks, dump a minimal filesystem on them and then boot from disk. E250 is using an old scsi interface. Here in my university you can rarely see scsi, and if there is one, it is of new interface... I myself is not fimilar with scsi, I do not know the specification of the bus(I know they're different, one is old one is new) Oh, perhaps I can have an IDE PCI card on E250 use an IDE HDD to boot. While I am still curious about what is blocking me from netbooting... -- 续本达 Xu, Benda Fundamental Science of Mathematics and Physics, Tsinghua University, Beijing, P.R.China http://learn.tsinghua.edu.cn:8080/2005012177/index.html http://thirsty.phys.tsinghua.edu.cn/MyWiki/heroxbd -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Geert Stappers wrote: But the '4200 Data Access Error' is a scary one ... 4000 is the default download start address. 4200 is start plus 200. 0x200 is 512 decimal, the size of a default TFTP packet. How to classify 'Data Access Error' is the challenge. If there are problems with memory, the 'ok' wouldn't probably not been show. Just do a simple check by these five separate command at the 'ok' prompt: 4 400 dump 4 400 55 fill 4 400 dump 4 400 AA fill 4 400 dump to make sure it is really no memory problem. Hi, I have got a great break through! It seems to be a memory problem! I have replaced NIC Realtck 8139 with Intel e100, and there is no more checksum error now. But it still hang with the second TFTP packet, leaving me: ok 4200 Data Access Error But, when I do ok 4000 400 aa fill and then ok boot net The TFTP packets hang with the third packet now! I can't believe it! So I went on and got perfectly to packet 146 or so. I am going tired so I just did ok 4000 a0 aa fill Then the Openboot hangs! I power it on again, and did ok test-all No error. Our E250 have 1024MB memory, far more than enough. What seems to be the problem now? I am copying the Openboot info (after power on) below: Sun (TM) Enterprise 250 (2 X UltraSPARC-II 296MHz), Keyboard Present OpenBoot 3.12, 1024 MB memory installed, Serial #11548348 Ethernet address 8:0:20:b0:36:bc, Host ID: 80b036bc. -- 续本达 Xu, Benda Fundamental Science of Mathematics and Physics, Tsinghua University, Beijing, P.R.China http://learn.tsinghua.edu.cn:8080/2005012177/index.html http://thirsty.phys.tsinghua.edu.cn/MyWiki/heroxbd -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Netboot E250 -- tftp problem
Hero_xbd!.RRR wrote: Hi, I have got a great break through! It seems to be a memory problem! I have replaced NIC Realtck 8139 with Intel e100, and there is no more checksum error now. But it still hang with the second TFTP packet, leaving me: ok 4200 Data Access Error ... I have tried again as follows: ok boot net 4400 Data Access Error ok dump 4000 600 0 Fast Data Access MMU Miss I think this MMU Miss message is an important clue. -- 续本达 Xu, Benda Fundamental Science of Mathematics and Physics, Tsinghua University, Beijing, P.R.China http://learn.tsinghua.edu.cn:8080/2005012177/index.html http://thirsty.phys.tsinghua.edu.cn/MyWiki/heroxbd -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
