On Sun, 2009-09-13 at 19:43 +0300, Jonathan Dieter wrote: > Deltarpm seems to be unable to generate correct rpms for deltarpms > generated from noarch rpms. The uncompressed payload is correct, but > the compressed xz payload is different. > > To test, using Rawhide's deltarpm, try running "applydeltarpm -r > anjuta-doc-2.27.3.0-3.fc12.noarch.rpm > anjuta-doc-2.27.3.0-3.fc12_2.27.92.0-1.fc12.noarch.drpm test.rpm". You > should end up with an md5 mismatch. If you rpm2cpio test.rpm, you'll > find that the uncompressed cpio archive is identical to that of > anjuta-doc-2.27.92.0-1.fc12.noarch.rpm. > > As I understand it, noarch rpms are generated on PPC builders. > > I suspect this problem is because of one of two reasons: > 1. The version of xz on the PPC builders is a different version than > that on the other builders? > 2. xz generates different compressed files when run on different > architectures > > If it is #2, this is a major problem (at least for yum-presto) because > the whole purpose of deltarpm is to regenerate the original (compressed) > rpm, given an older version and a deltarpm. If we can't do that, the > regenerated package won't pass the signature check and will be > re-downloaded in full. > > I have access to i586 and x86_64 systems, but no PPC systems. Could > someone either give me access to a PPC system or verify themselves > whether xz generates different files on different architectures (all > other things being equal). It doesn't. [airlied@pegasus ~]$ md5sum lm93_busted.o d7174fc439c4678927725d06de4f18a2 lm93_busted.o [airlied@pegasus ~]$ xz -z -c lm93_busted.o | md5sum 86dbb83fea5f4e2f77396b3f491a0cc1 - [airlied@ppcg5 ~]$ md5sum lm93_busted.o d7174fc439c4678927725d06de4f18a2 lm93_busted.o [airlied@ppcg5 ~]$ xz -z -c lm93_busted.o | md5sum acf84a6c173b040f6cf8ea96c7daa513 - thats just a random file I had on my machine here, first is x86 32-bit, second is ppc. xz-4.999.9-0.1.beta.fc12 on both. Dave. > > Jonathan > -- > fedora-devel-list mailing list > fedora-devel-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/fedora-devel-list -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
