Re: tftp kernel retrieval failure

["Crispin Murphy" <crispin@myra.com>]

You may not need need the full path (in the bootp reply) if you've configured
tftp securely (to use /tftpboot as the path).  Ths may be causing the tftp
server to actually look for /tftpboot/tftpboot/vmlinuz!  Also, use tcpdump /
snoop to watch the packets from the server (hazel?) - can be very handy!

Crispin

dann frazier wrote:

> hey,
>
>   i am trying to set up a system using lui/etherboot.
> My client successfully boots from the floppy, loads the nic driver (a
> lance card), obtains it's ip via bootp from the server and proceeds to
> obtain the kernel image (/tftpboot/vmlinuz which is the tagged kernel
> included with the latest lui package).  Due to the location of the
> failure i felt my problem was more relevant to this list than the lui
> list.
>
> at this point, the client display the following:
> -----
> Loading /tftpboot/vmlinuz <sleep>
> <sleep>
> <sleep>
>  ...     /* (this may be during a timeout from inetd) */
> <sleep>
> (NBI)... Unable to load file.
> (NBI)... Unable to load file.
> (NBI)... Unable to load file.
> (NBI)... Unable to load file.
> (...)
> -----
>
> and the server has this to say (/var/log/messages):
> -----
> (...)
> Jul 21 16:20:07 hazel tftpd[2715]: tftpd: trying to get file:
> /tftpboot/vmlinuz
> Jul 21 16:20:08 hazel tftpd[2717]: tftpd: trying to get file:
> /tftpboot/vmlinuz
> Jul 21 16:20:09 hazel tftpd[2719]: tftpd: trying to get file:
> /tftpboot/vmlinuz
> Jul 21 16:20:10 hazel tftpd[2721]: tftpd: trying to get file:
> /tftpboot/vmlinuz
> Jul 21 16:20:11 hazel tftpd[2723]: tftpd: trying to get file:
> /tftpboot/vmlinuz
> Jul 21 16:20:12 hazel tftpd[2725]: tftpd: trying to get file:
> /tftpboot/vmlinuz
> Jul 21 16:20:13 hazel inetd[1757]: tftp/udp server failing (looping),
> service terminated
> -----
> vmlinuz is world readable.
>
> if i tftp from a machine on the same subnet to my server, i can (and do)
> successfully retrieve this file.  In this case, tftpd will log a "trying
> to get file" and a "serving file" message for each transfer.
>
> i'd be happy to give any more information that may help solve this
> problem.
>
> extrenuous info:
> Redhat 6.2, bootpd-2.4.3-5 (from RH's 5.1 distribution)
> latest version of etherboot/lui
>
> tftp line from inetd.conf
> -----
> tftp    dgram   udp     wait    root    /usr/sbin/tcpd  in.tftpd
> /tftpboot
> -----
>
> --
> +-+-+-+-+-+-+-+-+-+-+-+
>    dann frazier
> Hewlett Packard - USEL
> daniel_frazier@hp.com
>   (970) 898-0800
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