On Thu, Oct 21, 2010 at 11:33:36AM +0000, Andre Robatino wrote: > A version of xz (4.999.9-0.3.beta.212.gacbc.fc15) which compresses differently > from the versions in F11 to F14 was recently pushed to Rawhide. This has the > side effect of making existing deltaisos not work properly if the newer version > of xz is installed. (At the end of running applydeltaiso, one would get an > "md5sum mismatch, iso is corrupt" error, and the ISO would be unusable.) For > Rawhide users, to use a deltaiso between versions <= 14, do the following: > > 1) temporarily downgrade all xz-\* packages to the F14 versions (currently > 4.999.9-0.2.beta.20100401git.fc14) which are available in > http://download.fedoraproject.org/pub/fedora/linux/development/14/{i386, > x86_64}/os/Packages/. I suggest saving the necessary RPMs in one's home > directory to make switching easy. > > 2) Run applydeltaiso as usual. If you get an "iso successfully re-created" > message at the end then all is well. > > 3) Restore the original xz-\* packages (which are necessary for Rawhide's drpms > to rebuild properly when updating). > > The xz developer says that the new version of xz will not be pushed to F14 and > below (see https://bugzilla.redhat.com/show_bug.cgi?id=644046 ). I still need to > update the deltaiso documentation at https://fedoraproject.org/wiki/Delta_ISOs > and https://fedoraproject.org/wiki/User:Robatino/Downloads . I don't know yet > exactly how this will affect deltaisos after F14 Final. > Question -- will we need to mass rebuild all Fedora 15 packages with the new xz so that delta* rpm stuff works? -Toshio
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