DNS resolving in customize-image.sh works/works not in some cases

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I've got a problem with DNS resolving and customize-image.sh.


One setup works (home), one setup does not (office).


Both setups are OS X (different major versions), Virtual Box (different major versions), Network Bridging and Ubuntu 14.04. Building images (Banana Pi M1/M2/R1 jessie next) without customize-image.sh works perfectly, espacially the apt-get stuff, which needs DNS resolving.


The working home setup uses dynamic (DHCP) private RFC1918 IPs (and/or public IPv6 IPs).


The nonworking office setup uses public static IPv4 IPs for OS X and Ubuntu. The build process works flawlessly until customize-image.sh is executed.


Some excerpts of customize-image.sh and its output.

fping is alive
fping is alive
fping heise.de # i.e.
heise.de address not found
cat /etc/resolv.conf
eval '/bin/bash -c "apt-get update "' \
	${PROGRESS_LOG_TO_FILE:+' | tee -a $DEST/debug/debootstrap.log'} \
	${OUTPUT_DIALOG:+' | dialog --backtitle "$backtitle" --progressbox "Installing Armbian system..." 20 80'} \
	${OUTPUT_VERYSILENT:+' >/dev/null 2>/dev/null'}
Err http://httpredir.debian.org jessie InRelease
Err http://apt.armbian.com jessie InRelease
Err http://httpredir.debian.org jessie-updates InRelease
Err http://httpredir.debian.org jessie Release.gpg
  Could not resolve 'httpredir.debian.org'

Any help would be appreciated.






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What OS release are you building (wheezy/jessie/trusty)?


Can you try non-working setup without bridging network interfaces?


Edit: Also try adding "nslookup heise.de" to customize-image.sh, this may report more descriptive error message.

won't work, needs "dnsutils" package which is not installed by default

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Does it work from non-virtual environment? I mean maybe "office router" (or something upstream) does DNS queries filtering and allows using only internal DNS server, while quieries to others (like are blocked?

If OS X has nslookup command, you can try "nslookup heise.de" and "nslookup heise.de"

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nslookup heise.de can't resolve.


I put an 

echo "nameserver ip-of-office-dns-server" > /etc/resolv.conf 

at the beginning of customize-image.sh and everything is fine.


Thank you for your help.

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