Solved - boot hangs on trying to start sendmail
After a wait of about 5 min, the boot moved on to hang on sm-client.
When that finally timed out, I was able to log in.
The problem was indirectly DNS.
When I had configured the 2nd interface (which I added in the last
reboot), I included a gateway address. Then when I booted, there were
two interfaces each with their gateway address. Well the second
(non-existant) one was used, so no access to the DNS server.
It is those beartraps you know about that get you every time.
the sendmail hang is generally a dns issue -- sendmail is trying to
resolve the hostname. it will timeout past this after a bit. having
the appropriate entries in /etc/hosts should resolve this.
------------ Original Message ------------
Date: Thursday, December 27, 2007 10:03:52 AM -0500
From: Robert Moskowitz <firstname.lastname@example.org>
To: CentOS mailing list <email@example.com>
Subject: [CentOS] boot hangs on trying to start sendmail
I am building a new server. It will be a temporary firewall of
I am well into the config, made a lot of changes; almost ready to
set it up in the target networks, but now....
The system hangs trying to start sendmail. I was thinking hard
about disabling sendmail, but thought I needed it for internal
functions, so did not. yet.
So is there someway to get the system working so I can change
something like disable sendmail?
The system has no cdrom, diskette, etc. In fact the kybd/monitor
require a special temp setup. Perhaps I can edit the kernel line
in grub to disable something?
If necessary, I can pull the drive and put it in a system that does
support cdrom. That is the way I did the initial harddrive install.
---------- End Original Message ----------
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