qubes-builder fails when DISTS_VM="fc14 fc15"

[joanna]

When specyfing more than one dist VMs, e.g. "fc14 fc15", the build fails. E.g. 'make core' results in:

-> Installing package groups...
+ yum install -c /rw/home/user/qubes/qubes-builder/yum.conf -y -x kernel --installroot=/rw/home/user/qubes/qubes-builder/fc15 xen-devel
rpmdb: __db_meta_setup: /rw/home/user/qubes/qubes-builder/fc15/var/lib/rpm/Name: unexpected file type or format
error: cannot open Name index using db3 - Invalid argument (22)
rpmdb: __db_meta_setup: /rw/home/user/qubes/qubes-builder/fc15/var/lib/rpm/Providename: unexpected file type or format
error: cannot open Providename index using db3 - Invalid argument (22)
Loaded plugins: langpacks, post-transaction-actions, presto, refresh-packagekit
rpmdb: __db_meta_setup: /rw/home/user/qubes/qubes-builder/fc15/var/lib/rpm/Name: unexpected file type or format
rpmdb: __db_meta_setup: /rw/home/user/qubes/qubes-builder/fc15/var/lib/rpm/Name: unexpected file type or format
qubes-builder-pkgs                                                                                                                                             | 1.3 kB     00:00 ... 
qubes-builder-pkgs/primary                                                                                                                                     | 3.7 kB     00:00 ... 
qubes-builder-pkgs                                                                                                                                                              14/14
fedora/metalink                                                                                                                                                |  22 kB     00:00     
Could not parse metalink https://mirrors.fedoraproject.org/metalink?repo=fedora-$releasever&arch=x86_64 error was 
No repomd file
Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again
make: *** [core] Error 1

[marmarek]

The real reason is: fc15 build fails on pre-fc15 system. Perhaps rpm --rebuilddb *in chroot* will solve it...

[marmarek]

​http://git.qubes-os.org/gitweb/?p=marmarek/qubes-builder.git;a=commit;h=2bcdc51a161e5ab69f0cd311665dd7050acf5517