Here is a rough draft, untested, of a script that would be run once in
the main boot sequence in order to bring the resolvconf database up to
date. The main difference from your script is that it sends the info to
resolvconf instead of writing directly to resolv.conf. (I am assuming
that /etc/resolv.conf is a symbolic link to
/run/resolvconf/resolv.conf.) Can you please test this (or some improved
variant of it)?
#!/bin/sh
for F in /run/net-*.conf ; do
. $F
IFACE="${F%.conf}"
IFACE="${IFACE#/run/net-}"
S=""
if [ "$IPV4DNS0" != "0.0.0.0" ] ; then
S="${S}nameserver $IPV4DNS0
"
fi
if [ "$IPV4DNS1" != "0.0.0.0" ] ; then
S="${S}nameserver $IPV4DNS1
"
fi
if [ "$DOMAINSEARCH" ] ; then
S="${S}search $DOMAINSEARCH
"
fi
If [ "$S" ] ; then
echo "$S" | resolvconf -a "${IFACE}.initramfs"
fi
done
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https://bugs.launchpad.net/bugs/1473727
Title:
No DNS servers after netboot
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