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Description of problem: %postun if [ "$1" = 0 ]; then /bin/grep -v '^/bin/bash$' < /etc/shells | \ /bin/grep -v '^/bin/sh$' > /etc/shells.new /bin/mv /etc/shells.new /etc/shells fi This scriptlet tries to handle the case when bash is removed, but consider the circumstances where the if is ever true: the scriptlet is a shell script using /bin/sh as the interpreter, and gets executed /after/ bash has already been removed. So there's no /bin/sh anymore (because bash is what provides it), and the script can never be executed. Version-Release number of selected component (if applicable): All versions that I can remember up to and including bash-4.2.7-1.fc16. How reproducible: Always Steps to Reproduce: 1. yum --disablerepo="*" --enablerepo="rawhide" --installroot=/home/test/ -y install bash 2. rpm -e --root /home/test/ bash glibc-common glibc ncurses-libs nss-softokn-freebl (step 2 uses rpm because yum blows up there but that's another bug...) Actual results: warning: %postun(bash-4.2.7-1.fc16.x86_64) scriptlet failed, exit status 127 Expected results: Package is removed without scriptlet errors. Additional info: This is quite obviously a low-priority item, bash being removed is pretty much a never happens situation, just filing this for "correctness' sake" since it actually tries to handle this case. Couple of easy options: 1) use %preun instead of %postun for removing bash from /etc/shells 2) rewrite the scriptlet to use -p <lua> like %post does There's also an rpm bug here: rpm should realize the %postun dependencies cannot be satisfied on removal and issue an error, but that's my headache...
(In reply to comment #0) > Description of problem: > > %postun > if [ "$1" = 0 ]; then > /bin/grep -v '^/bin/bash$' < /etc/shells | \ > /bin/grep -v '^/bin/sh$' > /etc/shells.new > /bin/mv /etc/shells.new /etc/shells > fi > > This scriptlet tries to handle the case when bash is removed, but consider the > circumstances where the if is ever true: the scriptlet is a shell script using > /bin/sh as the interpreter, and gets executed /after/ bash has already been > removed. So there's no /bin/sh anymore (because bash is what provides it), and > the script can never be executed. Thanks for the report. > > Version-Release number of selected component (if applicable): > All versions that I can remember up to and including bash-4.2.7-1.fc16. > > How reproducible: > Always > > Steps to Reproduce: > 1. yum --disablerepo="*" --enablerepo="rawhide" --installroot=/home/test/ -y > install bash > 2. rpm -e --root /home/test/ bash glibc-common glibc ncurses-libs > nss-softokn-freebl > > (step 2 uses rpm because yum blows up there but that's another bug...) > > Actual results: > warning: %postun(bash-4.2.7-1.fc16.x86_64) scriptlet failed, exit status 127 > > Expected results: > Package is removed without scriptlet errors. > > Additional info: > This is quite obviously a low-priority item, bash being removed is pretty much > a never happens situation, just filing this for "correctness' sake" since it > actually tries to handle this case. Couple of easy options: > 1) use %preun instead of %postun for removing bash from /etc/shells Does not work. # rpm -e --root /home/test/ bash glibc-common glibc ncurses-libs nss-softokn-freebl/bin/sh: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such file or directory error: %preun(bash-4.2.7-2.fc16.x86_64) scriptlet failed, exit status 127 warning: %postun(glibc-2.13.90-6.x86_64) scriptlet failed, exit status 127 > 2) rewrite the scriptlet to use -p <lua> like %post does I have to go this way. > > There's also an rpm bug here: rpm should realize the %postun dependencies > cannot be satisfied on removal and issue an error, but that's my headache...
(In reply to comment #1) > (In reply to comment #0) > > 1) use %preun instead of %postun for removing bash from /etc/shells > Does not work. > # rpm -e --root /home/test/ bash glibc-common glibc ncurses-libs > nss-softokn-freebl/bin/sh: error while loading shared libraries: libtinfo.so.5: > cannot open shared object file: No such file or directory > error: %preun(bash-4.2.7-2.fc16.x86_64) scriptlet failed, exit status 127 > warning: %postun(glibc-2.13.90-6.x86_64) scriptlet failed, exit status 127 Hmm, technically it /should/ to work... but then the bash - glibc - ncurses etc loop is a tricky one, quite possibly even more problematic on erase. I'll try to have a look at it. > > 2) rewrite the scriptlet to use -p <lua> like %post does > I have to go this way. Nod, using lua largely frees it from dependency loop issues.
Should be fixed in bash-4.2.7-2.fc16. Rewritten in lua. Feel free to reopen if it doesn't work.