On Thu, Aug 16, 2007 at 20:38:12 +0100 (+0100), Adrian Bridgett wrote:
> However, I still get some hangs (one I've seen before). In this case,
> dpkg-preconfigure is sat in a waitpid(pidof /tmp/postfix.config...)
> whilst postfix.config is sat reading STDIN (which is FD#8 from the
> dpkg-preconfigure. There is a dpkg-preconfigure zombie process
> between these two.
Well after several days of pouring over "ls -l /proc/$$/fd" output etc
(and with very little actually understanding of how the
DEBIAN_FRONTEND, DEBIAN_HAS_FRONTEND, DEBCONF_REDIR is supposed to
be being used!), I have some workarounds which let me use puppet with
a debian preseed to make a fully automated install.
I've attached the three patches I'm using (on top of your debconf
patch) which allow this to work. Mostly they involve checking if file
descriptor #3 is actually open - if it's not then unset DEBCONF_REDIR
(and possibly DEBIAN_HAS_FRONTEND - I only just saw that there is also
DEBIAN_FRONTEND :-( ). BTW ClientConfModule.pm is the
"Client/ConfModule.pm" file.
It looks like apt-get is closing the FDs in ExecFork which does look
at an APT::Keep-Fds option but I've not looked any further.
Thanks,
Adrian
--
Email: [EMAIL PROTECTED] -*- GPG key available on public key servers
Debian GNU/Linux - the maintainable distribution -*- www.debian.org
--- debconf/usr/share/perl5/Debconf/Client/ConfModule.pm 2007-07-25 14:59:58.000000000 +0100
+++ /tmp/ClientConfModule.pm 2007-08-22 08:53:13.000000000 +0100
@@ -86,7 +86,9 @@
# /usr/share/debconf/confmodule is loaded, and then this
# perl module is used. In that case, this module needs to write
# to fd #3, rather than stdout. See changelog 0.3.74.
# apt-get is closing the FD without unsetting the ENV
- if (exists $ENV{DEBCONF_REDIR} && $ENV{DEBCONF_REDIR}) {
+ if (exists $ENV{DEBCONF_REDIR} && $ENV{DEBCONF_REDIR}
+ && -e "/proc/$$/fd/3") {
open(STDOUT,">&3");
}
}
7a8,15
> # apt-get is closing the FDs without unsetting the ENV
> if [ "$DEBCONF_REDIR" ]; then
> if ! [ -e /proc/$$/fd/3 ]; then
> unset DEBCONF_REDIR
> unset DEBIAN_HAS_FRONTEND
> fi
> fi
>
--- debconf/usr/sbin/dpkg-preconfigure 2007-07-25 14:59:59.000000000 +0100
+++ /tmp/dpkg-preconfigure 2007-08-22 08:51:34.000000000 +0100
@@ -35,6 +35,16 @@
@ARGV=();
my $have_tty=1;
+ # apt-get is closing the FD without unset the ENV
+ if ($ENV{DEBCONF_REDIR}) {
+ local (*TMP);
+ if (! open(TMP,"<&3")) {
+ delete $ENV{DEBCONF_REDIR};
+ delete $ENV{DEBIAN_HAS_FRONTEND};
+ } else {
+ close TMP;
+ }
+ }
if ($apt) {
while (<>) {
@@ -100,6 +109,7 @@
exit;
}
my @buffer=<INFO>;
+close INFO;
if ($apt && @buffer) {
print gettext("Preconfiguring packages ...\n");
}
