Fwd: ntpd couldn't resolve host name on system boot

[Scott, Brian]

> 
> Matthew,
> 
> Although netwait will probably fix the problem for you, another
> possibility that I have just ran into recently involved DNSSEC
> validation in bind. The problem was that without ntp syncing the time at
> boot (the system doesn't have battery backed time) dns resolution failed
> (root key wasn't valid yet). If dns resolution fails then you can't find
> your time servers. Repeat till you get sick of it.
> 
> Possible solutions include:
> *    Don't do dnssec validation
> *    Hard code an IP address in your ntp.conf (even a low stratum
> server somewhere)
> *    Run a task at startup to brute force your time to something
> reasonable (within a year or two ago) to allow dnssec validation to
> work.
> 
> As I said, you will probably find that netwait_* is all you need and you
> can safely ignore this.
> 
> Brian
> 
> -----Original Message-----
> From: owner-freebsd-stable at freebsd.org
> [mailto:owner-freebsd-stable at freebsd.org] On Behalf Of Matthew Doughty
> Sent: Friday, 18 May 2012 1:03 AM
> To: freebsd-stable at freebsd.org
> Subject: ntpd couldn't resolve host name on system boot
> 
> Dear Jerermy,
> 
> Whilst searching for a solution to a problem, I found your post:
> http://lists.freebsd.org/pipermail/freebsd-stable/2011-October/064350.ht
> ml
> 
> Please could you explain how I can implement the netwait script to solve
> the problem?  I'm new to freenas/BSD but am willing to try working from
> the Cmd line.
> 
> Best regards,
> 
> Matthew
> 
> 
> PS: Here are the messages
> 
> May 14 13:32:59 freenas kernel: SMP: AP CPU #1 Launched!
> 
> May 14 13:32:59 freenas kernel: GEOM: da0s1: geometry does not match
> label (16h,63s != 255h,63s).
> 
> May 14 13:32:59 freenas kernel: GEOM: da0s2: geometry does not match
> label (16h,63s != 255h,63s).
> 
> May 14 13:32:59 freenas kernel: Trying to mount root from
> ufs:/dev/ufs/FreeNASs2a
> 
> May 14 13:32:59 freenas kernel: WARNING: /data was not properly
> dismounted
> 
> May 14 13:32:59 freenas kernel: ZFS filesystem version 4
> 
> May 14 13:32:59 freenas kernel: ZFS storage pool version 15
> 
> May 14 13:33:00 freenas ntpd[1512]: ntpd 4.2.4p5-a (1)
> 
> May 14 13:33:00 freenas root: /etc/rc: WARNING: failed precmd routine
> for vmware_guestd
> 
> May 14 13:33:02 freenas ntpd_initres[1526]: host name not found:
> 0.freebsd.pool.ntp.org
> 
> May 14 13:33:02 freenas ntpd_initres[1526]: couldn't resolve `
> 0.freebsd.pool.ntp.org', giving up on it
> 
> May 14 13:33:02 freenas ntpd_initres[1526]: host name not found:
> 1.freebsd.pool.ntp.org
> 
> May 14 13:33:02 freenas ntpd_initres[1526]: couldn't resolve `
> 1.freebsd.pool.ntp.org', giving up on it
> 
> May 14 13:33:02 freenas ntpd_initres[1526]: host name not found:
> 2.freebsd.pool.ntp.org
> 
> May 14 13:33:02 freenas ntpd_initres[1526]: couldn't resolve `
> 2.freebsd.pool.ntp.org', giving up on it
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