TBC

TBC

Before copying some package version from one distribution (e.g. sid-unstable) to another (e.g. sid), it might be wise to generate a snaptshot, so that one can still configure a sources.list file providing access to an earlier version of OAR's packages.

It the version to snapshot is the current one, then reprepro can do it. Assuming we want to take a snapshot of sid for 2.5.4-1, 2.5.4-1 being the current version of the packages, we create a snapshot named “2.5.4-1” as follows:

$ reprepro -v -b /home/oarmaster/reprepro/oar/2.5 gensnapshot sid 2.5.4-1

One could then put in it's sources.list the following line to have access to the 2.5.4-1 version of the packages, even if they are not the current one anymore:

deb http://oar-ftp.imag.fr/oar/2.5/debian/ sid/snapshots/2.5.4-1 main

If we already copied a new version to the distribution, reprepro gensnapshot is useless. In that case, we have to generate the snapshot by ourselves…

$ export LC_TIME=C
$ POOL=/home/oarmaster/reprepro/oar/2.5/pool/main/o/oar/
$ DIST=wheezy
$ VERSION=2.5.3-3~bpo70+1
$ cd ~/mirror/htdocs/oar/2.5/debian/dists/$DIST/
$ mkdir -p snapshots/$VERSION/main
$ cd snapshots/$VERSION/main
$ mkdir -p {source,binary-i386,binary-amd64}/pool/main/o/oar
$ cat > source/Release <<EOF
Component: main
Architecture: source
EOF
$ cat > binary-i386/Release <<EOF
Component: main
Architecture: i386
EOF
$ cat > binary-amd64/Release <<EOF
Component: main
Architecture: amd64
EOF
$ cp $POOL/oar_$VERSION.{dsc,debian.tar.gz} source/pool/main/o/oar/
$ cp $POOL/*$VERSION{_all,_i386}* binary-i386/pool/main/o/oar/
$ cp $POOL/*$VERSION{_all,_amd64}* binary-amd64/pool/main/o/oar/
$ (cd source ; apt-ftparchive sources . > Sources ; gzip -c Sources > Sources.gz)
$ (cd binary-i386 ; apt-ftparchive packages . > Packages ; gzip -c Packages > Packages.gz)
$ (cd binary-amd64 ; apt-ftparchive packages . > Packages ; gzip -c Packages > Packages.gz)
$ rm -r {source,binary-i386,binary-amd64}/pool
$ cd ..
$ cat > Release <<EOF
Suite: $DIST/snapshots/$VERSION
Codename: $DIST/snapshots
Architectures: i386 amd64
Components: main
EOF
$ apt-ftparchive release . >> Release
$ gpg --clearsign -o InRelease Release
$ gpg -abs -o Release.gpg Release

We can then add to our sources.list:

deb http://oar-ftp.imag.fr/oar/2.5/debian/ wheezy/snapshots/2.5.3-3~bpo70+1 main

• https://help.ubuntu.com/community/CreateAuthenticatedRepository