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Description of problem: When I try to use mock from fedpkg on master branch, I get the following error: ERROR: Command failed: # ['/usr/bin/yum', '--installroot', '/var/lib/mock/fedora-rawhide-x86_64/root/', '--releasever', '21', 'update'] Not using downloaded repomd.xml because it is older than what we have: Current : Tue Jul 29 11:52:56 2014 Downloaded: Wed Jul 9 11:57:00 2014 file:///tmp/repo/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /tmp/repo/repodata/repomd.xml" Trying other mirror. ================================================================================ Package Arch Version Repository Size ================================================================================ Updating: ...snip... Transaction Summary ================================================================================ Upgrade 98 Packages Total size: 90 M Transaction couldn't start: file /media from install of filesystem-3.2-28.fc22.x86_64 conflicts with file from package filesystem-3.2-26.fc21.x86_64 Version-Release number of selected component (if applicable): filesystem-3.2-28.fc22
The situation is even worse. As a new package attempts to replace /media directory with a symlink to /run/media if you try to "force" an update it fails on a rename in cpio unpacking a new layout. This will make upgrading existing installations quite difficult. Maybe this could be done in steps. As F20 and F21 do not really seem to use /media for anything then maybe it would be possible to issue an update to a 'filesystem' package with /media just removed (and possibly replaced by a symlink in a %post script). Once such update is in place then the next update could correct this to a desired state. Not perfect but substantially better than the current mess.
Well, replacing is documented in Packaging guidelines (lua scriptlet in %pre - https://fedoraproject.org/wiki/Packaging:Directory_Replacement ) - so I did that this way in filesystem-3.2-29.fc22 - unfortunately -28 was already built incorrectly in rawhide - sorry for that. Update running fine was confirmed for 3.2-29.fc22 - so closing RAWHIDE. (please note, to be on safe side now, update creates toplevel /media.rpmmoved directory to prevent accidental data.loss/failures for cases where /media were used for something)