Toshio Kuratomi <a.badger <at> gmail.com> writes:
I don't believe so. I think we'd need to 1) rebuild all
packages using the
new compression 2) Teach the deltaiso stuff that generating an F15 iso needs
to use the new version of the xz/delta*.
2) is easy enough. To get F14 to use the new compression unconditionally, I
downloaded the Rawhide version of several packages and then used yum shell with
the commands
config gpgcheck 0
install xz-compat-libs-5.0.0-4.fc15.x86_64.rpm
update xz-5.0.0-4.fc15.x86_64.rpm xz-libs-5.0.0-4.fc15.x86_64.rpm
deltarpm-3.6-0.4.20100708git.fc15.x86_64.rpm
deltaiso-3.6-0.4.20100708git.fc15.x86_64.rpm
python-deltarpm-3.6-0.4.20100708git.fc15.x86_64.rpm
run
and to reverse the process (necessary so yum-presto will work), yum shell again
with the commands
remove xz-compat-libs
downgrade xz xz-libs deltarpm deltaiso python-deltarpm
run
The old and new versions of deltarpm use the old and new compression
unconditionally, resp.