+.SS "Tracking the evolution of a codename release"
+.PP
+The following APT preferences file will cause APT to assign a priority higher than the default (500) to all package versions belonging to a specified codename of a distribution and a prohibitively low priority to package versions belonging to other
+Debian
+distributions, codenames and archives\&. Note that with this APT preference APT will follow the migration of a release from the archive
+testing
+to
+stable
+and later
+oldstable\&. If you want to follow for example the progress in
+testing
+notwithstanding the codename changes you should use the example configurations above\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+Explanation: Uninstall or do not install any Debian\-originated package versions
+Explanation: other than those in the distribution codenamed with squeeze or sid
+Package: *
+Pin: release n=squeeze
+Pin\-Priority: 900
+
+Explanation: Debian unstable is always codenamed with sid
+Package: *
+Pin: release a=sid
+Pin\-Priority: 800
+
+Package: *
+Pin: release o=Debian
+Pin\-Priority: \-10
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+With a suitable
+\fBsources.list\fR(5)
+file and the above preferences file, any of the following commands will cause APT to upgrade to the latest version(s) in the release codenamed with
+squeeze\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+apt\-get install \fIpackage\-name\fR
+apt\-get upgrade
+apt\-get dist\-upgrade
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+The following command will cause APT to upgrade the specified package to the latest version from the
+sid
+distribution\&. Thereafter,
+\fBapt\-get upgrade\fR
+will upgrade the package to the most recent
+squeeze
+version if that is more recent than the installed version, otherwise, to the most recent
+sid
+version if that is more recent than the installed version\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+apt\-get install \fIpackage\fR/sid
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+.SH "ファイル"
+.PP
+/etc/apt/preferences
+.RS 4
+Version preferences file\&. This is where you would specify "pinning", i\&.e\&. a preference to get certain packages from a separate source or from a different version of a distribution\&. Configuration Item:
+Dir::Etc::Preferences\&.
+.RE
+.PP
+/etc/apt/preferences\&.d/
+.RS 4
+File fragments for the version preferences\&. Configuration Item:
+Dir::Etc::PreferencesParts\&.
+.RE
+.SH "関連項目"
projects / apt-legacy.git / blobdiff