On Wed, 15 Mar 2006 10:07:10 -0700, Richard Fish wrote: > To use them later, specify the --usepkg/--usepkgonly options to > emerge. For example, I currently have portage-2.1_pre3-r1 through > portage-2.1_pre6-r2 packages. If I have a problem with pre6-r2, and > want to quickly downgrade, I can do something like: > > emerge --oneshot --usepkgonly =sys-apps/portage-2.1_pre5-r4 > > This is really useful for large packages that take a long time to > compile, like X, KDE, or openoffice.org.
It's also useful if a new version of a critical package screws your system, like glibc, gcc, python or portage. You can untar the package directly into the root filesystem to get a functional system back, then use "emerge --usepkg" after to do it properly (otherwise portage will think the new version is still installed). -- Neil Bothwick Windows NT is the OS of the future and always will be...
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