tftp - bad checksum error? can't transfer file

Warren Block wblock at
Fri Jul 8 12:24:46 UTC 2011

On Thu, 7 Jul 2011, Anton Shterenlikht wrote:

> I'm trying to troubleshoot tftpd(8).
> % grep boot /etc/inetd.conf
> tftp   dgram udp  wait root /usr/libexec/tftpd  tftpd -dd -l -s /tftpboot
> tftp   dgram udp  wait root /usr/libexec/tftpd  tftpd -dd -l -s /tftpboot
> bootps dgram udp  wait root /usr/libexec/bootpd bootpd -d4 -t0 /etc/bootptab
> %
> I'm trying to boot another node via bootp/tftp.
> I'm monitoring what's going on with tcpdump -vv.
> bootpd starts fine, and seems to read /etc/bootptab
> correctly.
> But after that nothing happens, and after a few minutes
> I get on the console of the host which I want to boot:
>> bootp()/bsd.rd.IP32
> Unable to execute bootp()/bsd.rd.IP32:  invalid argument

How big is bsd.rd.IP32?  Does the BUGS section of tftpd(8) apply?

If so, try ftp/tftp-hpa.  It's faster, too, AFAIR.

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