Red Hat Bugzilla – Bug 830537
Preupgrade should verify packages after download
Last modified: 2013-02-13 09:46:34 EST
Description of problem:
Once preupgrade downloads a package for following upgrade process it should verify its checksum before it reboots for installation. This should help to avoid problems like bug #650854 when installation is interrupted in the middle due to package being corrupted.
It should be as simple as running
rpm --checksig package
after each package is downloaded.
Version-Release number of selected component (if applicable):
Always when downloaded rpm is currpted.
You may check this problem description at
Here is my quick patch to do the package verifycation during the preupgrade download process. I am really not a python guru, just wrote it based on the existing code.
diff -Naur preupgrade-gtk.py.orig preupgrade-gtk.py
--- preupgrade-gtk.py.orig 2011-10-21 16:10:03.000000000 +0200
+++ preupgrade-gtk.py 2012-06-27 20:35:00.881588412 +0200
@@ -553,6 +553,21 @@
self.dnlProgress.datamode = True
problems = self.pu.downloadPkgs(downloadpkgs)
+ # Step 4ca: verify the downloaded RPMs are OK
+ print _("Verifying packages")
+ self.progress.details(_("Verifying downloaded packages"))
+ for po in downloadpkgs:
+ if hasattr(po, 'pkgtype') and po.pkgtype == 'local':
+ local = po.localPkg()
+ if os.path.exists(local):
+ if not self.pu.verifyPkg(local, po, False):
+ message = _("Package: ") + str(local) + (" corrupted, please delete it and try to run preupgrade again")
+ raise Exception, message
# Step 4d: check upgrade sizes now that we've downloaded RPMs
This could be considered a dupe of https://bugzilla.redhat.com/show_bug.cgi?id=650854 , but that one covers a specific case where package 'corruption' regularly occurs (VirtualBox), so probably best keep them separate. See also https://bugzilla.redhat.com/show_bug.cgi?id=651278 - preupgrade is similarly poor at dealing with network drops, apparently.
Thanks for the points. I am modify the patch to complain also at missing package - then all those bug would be solved by my patch - after download finishes, it verifies all the packages that should be downloaded. If not, then exits.. not the best solution, but better than corrupted upgrade.
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