I've had several occasions of flakey behavior, followed by re-boot,
followed by inability to complete booting, with the following message
(timestamp) dns com.apple.launchd (com.apple.mDNSResponder[xxx]):
posix_spawnp("/usr/sbin/mDNSResponder", . . .): No such file or
The first couple times, I re-installed, since I hadn't invested that
much in getting going. But this time, I had switched users over -- it
was either figure this out, or go back to Tiger.
The first symptom was IMAP quit working. Incoming mail was still
coming in, but users couldn't access it via client mail readers. I had
just set up webmail, using /etc/squirrelmail/config/conf.pl, although
I can't really point the finger at that right now. I looked over cyrus
logs and config files, and couldn't see anything unusual, and so I
decided to re-boot. That's when I started to panic.
I booted into single user and verified that /usr/sbin/mDNSResponder
did, in fact, exist. Then I started looking at permissions, first at
the file, then at the enclosing directories. When I got to "ls -
laod /", it said "drwxrwx---". Hmmm... no read or search permission
for others on the directory root? I did "chmod 775 /", crossed my
fingers, and pressed CTR-D to exit single user mode.
And everything is fine.
I know I didn't do this, so what did? Anyone else seen this problem? I
hate to report a bug that I can't repeat, and I'm unwilling to try to
repeat this particular one.
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