[Bug 606668] Re: dpkg fails to run preinst when using --admindir
Raphaël Hertzog
hertzog at debian.org
Sat Nov 26 14:58:53 UTC 2011
** Changed in: dpkg (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/606668
Title:
dpkg fails to run preinst when using --admindir
Status in “dpkg” package in Ubuntu:
Triaged
Bug description:
Binary package hint: dpkg
Release: Ubuntu 9.10
dpkg version: 1.15.4ubuntu2.1
I'm running dpkg overriding the admin dir, so that i may run run it as
non-root in my code unit tests (creating an ant deb creation task)
dpkg --install --force-all --admindir=createinstaller-
complex/install/var/lib/dpkg --root=createinstaller-complex/install
--instdir=createinstaller-complex/install createinstaller-
complex/bmtest.deb
All goes well up to the point of executing the script, where strace
shows:
11908 stat64("createinstaller-complex/install/var/lib/dpkg/tmp.ci/preinst", {st_mode=S_IFREG|0644, st_size=250, ...}) = 0
11908 chmod("createinstaller-complex/install/var/lib/dpkg/tmp.ci/preinst", 0755) = 0
11908 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7675788) = 11914
11908 rt_sigaction(SIGQUIT, {0x1, [], 0}, {0x1, [], 0}, 8) = 0
11908 rt_sigaction(SIGINT, {0x1, [], 0}, <unfinished ...>
11914 chroot("createinstaller-complex/install" <unfinished ...>
11908 <... rt_sigaction resumed> {SIG_DFL, [], 0}, 8) = 0
11914 <... chroot resumed> ) = 0
11908 waitpid(11914, <unfinished ...>
11914 chdir("/") = 0
11914 execve("/var/lib/dpkg/tmp.ci/preinst", ["/var/lib/dpkg/tmp.ci/preinst", "install"], [/* 26 vars */]) = -1 ENOENT (No such file or directory)
As you can see, up to that point, dpkgs always uses the right
directory, and creates the preinst script in "createinstaller-
complex/install/var/lib/dpkg/tmp.ci/preinst", however when it tried to
execute it, it does so by calling "/var/lib/dpkg/tmp.ci/preinst",
which is naturally wrong and makes the whole thing fail :-(
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