Package: debirf
Version: 0.34
Severity: normal
Tags: patch
Dear Maintainer,
debirf may fail to configure and run man-db under some circumstances.
The symptoms : in a somewhat outdated jessie chroot
$ dpkg -l man-db
[ ... ]
ii man-db 2.6.6-1 amd64 on-line manual pager
$ debirf make minimal
[ ... ]
$ echo $?
0
$ debirf enter minimal/
# apt-get update
# apt-get install man-db
[ ... ]
Selecting previously unselected package man-db.
Preparing to unpack .../man-db_2.6.7.1-1_amd64.deb ...
Unpacking man-db (2.6.7.1-1) ...
# echo $?
0
# apt-get install bc
[ ... ]
Processing triggers for man-db (2.6.7.1-1) ...
/usr/bin/mandb: error while loading shared libraries: libmandb-2.6.7.1.so:
cannot open shared object file: No such file or directory
(there is no message that a configuration of man-db occurred)
The same symptoms occur if the architectures don't match - say,
we are building an i386 target on an amd64 machine.
There is no such problem as real root (and real chroot).
The cause : the versions of man-db on the build host and in the debirf
(fake-)chroot don't match.
/usr/bin/mandb finds its library /usr/lib/man-db/libmandb-2.6.7.1.so
through a DT_RUNPATH tag :
$ readelf --dynamic /usr/bin/mandb
[ ... ]
0x000000000000001d (RUNPATH) Library runpath: [/usr/lib/man-db]
Fakechroot adds ${DEBIRF_ROOT}/usr/lib/ to LD_LIBRARY_PATH, not
${DEBIRF_ROOT}/usr/lib/man-db. As a result, /usr/lib/man-db/libmandb-2.6.7.1.so
on
the build host is used - not the right one !
A possible workaround : we may override the DT_RUNPATH tag with
LD_LIBRARY_PATH (see the following patch as an example)
Then
$ debirf enter minimal/
# apt-get update
# apt-get install man-db
[ ... ]
Setting up man-db (2.6.7.1-1) ...
Building database of manual pages ...
Regards,
JH Chatenet
diff -Naur a/usr/share/debirf/common b/usr/share/debirf/common
--- a/usr/share/debirf/common 2014-07-09 22:28:14.000000000 +0200
+++ b/usr/share/debirf/common 2014-07-15 20:08:46.000000000 +0200
@@ -55,6 +55,7 @@
if [ "$ROOT_BUILD" = 'true' ] ; then
TMPDIR= chroot "$DEBIRF_ROOT" "$@"
else
+
LD_LIBRARY_PATH="${LD_LIBRARY_PATH:+${LD_LIBRARY_PATH}:}${DEBIRF_ROOT}/usr/lib/man-db"
TMPDIR= fakechroot chroot "$DEBIRF_ROOT" "$@"
fi
}
-- System Information:
Debian Release: jessie/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Versions of packages debirf depends on:
ii apt 1.0.9.1
ii cpio 2.11+dfsg-2
ii debootstrap 1.0.62
ii fakechroot 2.17.2-1
ii fakeroot 1.20.1-1.1
ii klibc-utils 2.0.4-1
Versions of packages debirf recommends:
ii grub-common 2.00-22
ii lsb-release 4.1+Debian13
ii xorriso 1.3.2-1.1
debirf suggests no packages.
-- no debconf information
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