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<DIV><FONT size=2 face=Arial>I believe the broken upgrade is due to a
scoping issue when $INTERFACESv4 isn't defined in
/etc/defaults/isc-dhcp-server ($DHCPD_DEFAULT).</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>To fix the upgrade process an update is
needed to the /etc/init.d/isc-dhcp-server file on 4.3.4-1 to define
$INTERFACESv4 before sourcing $DHCPD_DEFAULT, eg:</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV>
<DIV><FONT size=2 face=Arial><snip></FONT></DIV>
<DIV><FONT size=2 face=Arial>.......</FONT></DIV>
<DIV><FONT size=2 face=Arial>. /lib/lsb/init-functions</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>INTERFACESv4=""</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial># Read init script configuration<BR>[ -f
"$DHCPD_DEFAULT" ] && . "$DHCPD_DEFAULT"<BR>......</FONT></DIV>
<DIV><FONT size=2 face=Arial></snip></FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV></DIV></BODY></HTML>