hi, Il 08/02/2011 14:23, Nelson A. de Oliveira ha scritto: > Today while trying to run "debdelta-upgrade -v" I saw this: > > debdelta-upgrade : E:Error, pkgProblemResolver::Resolve generated > breaks, this may be caused by held packages. > > With a simple "aptitude full-upgrade": [...] > The following actions will resolve these dependencies: [...] > Accept this solution? [Y/n/q/?] > =====
> So maybe this situation is somehow confusing debdelta? yes, debdelta-upgrade simply calls cache=apt.Cache() cache.upgrade(True) and that is similar to "aptitude full-upgrade" ; but it does not implement conflict resolution > Testing with only packages that are known to be correctly installable: > [...] > > But debdelta also complains: > > ===== > # debdelta-upgrade -d -v apt-file base-files bti bzr chromium-browser > chromium-browser-inspector debootstrap dictionaries-common iceweasel > iproute libatasmart4 libavahi-client3 libavahi-common-data > libavahi-common3 libavahi-glib1 libgnomevfs2-0 libgnomevfs2-common > libgpg-error-dev libgpg-error0 libhal-dev libhal-storage1 libhal1 > libhyphen0 libmozjs4d liboauth0 libpcre3 libpcrecpp0 > libreoffice-base-core libreoffice-calc libreoffice-common > libreoffice-core libreoffice-draw libreoffice-impress > libreoffice-l10n-pt-br libreoffice-style-tango libreoffice-writer > libvlc5 libvlccore4 libx11-6 libx11-data libx11-dev libx11-xcb1 > libxaw7 ttf-dejavu ttf-dejavu-core ttf-dejavu-extra ttf-opensymbol > uno-libs3 ure vlc vlc-data vlc-nox xulrunner-2.0 > debdelta-upgrade : E:Error, pkgProblemResolver::Resolve generated > breaks, this may be caused by held packages. > > File "/usr/bin/debdelta-upgrade", line 4300, in <module> > exitcode=delta_upgrade_(argv) > File "/usr/bin/debdelta-upgrade", line 3477, in delta_upgrade_ > cache.upgrade(True) unfortunately this line ignores the list you give on command line... it should not... but I would need some help from APT people, so that debdelta-upgrade [files] would more precisely mimic what aptitude does > > What can I do to help in debugging this, please? > if it ever happens again, there are two possible quick workarounds, 1) in /usr/bin/debdelta-upgrade, change temporarily the line cache.upgrade(True) to cache.upgrade(False) (if this solves the problem, I may add it as a command line option, or a try:except fallback) 2) use the 'cupt' package manager, that solves dependencies (similarly to aptitude) and then downloads deltas and uses 'debpatch' instead of 'debdelta-upgrade' a.
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