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Subject: [gentoo-user] emerge --unmerge fails
From: Hilco Wijbenga <hilco.wijbenga@gmail.com>
To: Gentoo User <gentoo-user@lists.gentoo.org>
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Hi all,

I'm trying to unmerge some packages. They all fail like this:

centaur ~ # emerge --unmerge arora
 * This action can remove important packages! In order to be safer, use
 * `emerge -pv --depclean <atom>` to check for reverse dependencies before
 * removing packages.

 www-client/arora
    selected: 0.11.0
   protected: none
     omitted: none

>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed.

>>> Waiting 5 seconds before starting...
>>> (Control-C to abort)...
>>> Unmerging in:  5 4 3 2 1
>>> Unmerging www-client/arora-0.11.0...
 * The 'prerm' phase of the 'www-client/arora-0.11.0' package has failed
 * with exit value -1.
 *
 * The problem occurred while executing the ebuild file named
 * 'arora-0.11.0.ebuild' located in the '/var/db/pkg/www-
 * client/arora-0.11.0' directory. If necessary, manually remove the
 * environment.bz2 file and/or the ebuild file located in that directory.
 *
 * Removal of the environment.bz2 file is preferred since it may allow the
 * removal phases to execute successfully. The ebuild will be sourced and
 * the eclasses from the current portage tree will be used when necessary.
 * Removal of the ebuild file will cause the pkg_prerm() and pkg_postrm()
 * removal phases to be skipped entirely.

 * Messages for package www-client/arora-0.11.0:

 * The 'prerm' phase of the 'www-client/arora-0.11.0' package has failed
 * with exit value -1.
 *
 * The problem occurred while executing the ebuild file named
 * 'arora-0.11.0.ebuild' located in the '/var/db/pkg/www-
 * client/arora-0.11.0' directory. If necessary, manually remove the
 * environment.bz2 file and/or the ebuild file located in that directory.
 *
 * Removal of the environment.bz2 file is preferred since it may allow the
 * removal phases to execute successfully. The ebuild will be sourced and
 * the eclasses from the current portage tree will be used when necessary.
 * Removal of the ebuild file will cause the pkg_prerm() and pkg_postrm()
 * removal phases to be skipped entirely.
Traceback (most recent call last):
  File "/usr/bin/emerge", line 42, in <module>
    retval = emerge_main()
  File "/usr/lib/portage/pym/_emerge/main.py", line 1492, in emerge_main
    myopts, myaction, myfiles, spinner)
  File "/usr/lib/portage/pym/_emerge/actions.py", line 2305, in action_uninstall
    valid_atoms, ldpath_mtimes, ordered=ordered)
  File "/usr/lib/portage/pym/_emerge/unmerge.py", line 507, in unmerge
    scheduler=scheduler)
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 4509, in unmerge
    ldpath_mtimes=ldpath_mtimes)
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 2160, in unmerge
    vartree=self.vartree)
  File "/usr/lib/portage/pym/portage/package/ebuild/doebuild.py", line
793, in doebuild
    fd_pipes=fd_pipes, returnpid=returnpid)
  File "/usr/lib/portage/pym/portage/package/ebuild/doebuild.py", line
1261, in spawn
    buf.fromfile(f, buffsize)
IOError: [Errno 5] Input/output error

centaur ~ # eix sys-apps/portage
[I] sys-apps/portage
     Available versions:  [P]2.1.6.7 2.1.6.13 2.1.7.17 2.1.8.3
(~)2.1.9 (~)2.1.9.1 (~)2.1.9.2 {M}(~)2.2_rc67 [M](~)2.2_rc77
[M](~)2.2_rc78 [M]**9999 {build doc epydoc linguas_pl python3 selinux}
     Installed versions:  2.2_rc67(10:58:51 07/14/10)(-build -doc
-epydoc -linguas_pl -python3 -selinux)
     Homepage:            http://www.gentoo.org/proj/en/portage/index.xml
     Description:         Portage is the package management and
distribution system for Gentoo

centaur ~ # eix dev-lang/python
[D] dev-lang/python
     Available versions:
        (2.4)   2.4.6
        (2.5)   2.5.4-r4
        (2.6)   2.6.4-r1 2.6.5-r2 2.6.5-r3{tbz2}
        (2.7)   [M](~)2.7
        (3.1)   3.1.2-r3 3.1.2-r4{tbz2}
        {-berkdb bootstrap build +cxx doc elibc_uclibc examples gdbm
ipv6 +ncurses +readline sqlite +ssl +threads tk +wide-unicode wininst
+xml}
     Installed versions:  2.6.6-r1(2.6){tbz2}(09:17:19 10/13/10)(gdbm
ncurses readline ssl threads wide-unicode xml -berkdb -build -doc
-elibc_uclibc -examples -ipv6 -sqlite -tk -wininst)
3.1.2-r4(3.1){tbz2}(12:04:46 09/07/10)(gdbm ncurses readline ssl
threads wide-unicode xml -build -doc -elibc_uclibc -examples -ipv6
-sqlite -tk -wininst)
     Homepage:            http://www.python.org/
     Description:         Python is an interpreted, interactive,
object-oriented programming language.

centaur ~ # eselect python list
Available Python interpreters:
  [1]   python2.6 *
  [2]   python3.1

Any ideas?

Cheers,
Hilco