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I was attempting booting a NIM
client from a new NIM master. The new master had been configured on an existing
LPAR, with a running application and had been hardened from an OS security
point of view. The following message was displayed on the console while
attempting to tftp the client info file:
TFTP::FAILED TO READ FIRST
DATA BLOCK..RETRYING TRANSFER..
1
Starting tftpd
produced the following message in syslog:
Aug 14 12:44:12 bxaix85 daemon:info tftpd[1019942]:
[00000001] EZZ7062I Error: cannot determine the user.
The NIM boot failed after bootpd, when the connection to tftpd
was attempted. It timed out.
The lssrc
command showed tftpd was running. However, there was
a <defunct> child process.
# lssrc -a | grep tft
tftpd tcpip
725102 active
# ps -ef | grep tftp
root 622694 725102 0 16:12:33 -
0:00 <defunct>
root 725102 188634 0 16:12:33 -
0:00 /usr/sbin/tftpd -v -s
The user "nobody" had been
removed from the system as part of the AIX security hardening policy. To fix
the problem I had to add user nobody on the NIM master and restart tftpd.
# stopsrc -s tftpd
# mkuser id=4294967294 pgrp=nobody
groups=nobody home=/ nobody
# startsrc -s tftpd
The following message appeared in syslog:
Aug 18 14:38:07 bxaix85 daemon:info tftpd[622696]:
[00000001] EZZ7001I Starting.
The tftpd
processes appeared to be running as expected now.
# lssrc -a | grep tft
tftpd tcpip
725102 active
# ps -ef | grep tftp
nobody 622694 725102 0 16:12:33 -
0:00 /usr/sbin/tftpd -v -s
root 725102 188634 0 16:12:33 -
0:00 /usr/sbin/tftpd -v -s
The NIM client was then able to boot
and the install completed successfully.
