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HOWTO Break your system using Paludis
and maybe get a usable chroot if you're lucky
*** READ EVERYTHING CAREFULLY, OR YOU WILL BREAK YOUR SYSTEM! ***
THIS WILL PROBABLY NOT ACTUALLY WORK! Paludis is at the very early alpha stage.
It can sometimes install things, if you're very lucky, but it can't uninstall
them, upgrade them sensibly or anything like that. There are zillions of things
that are not implemented. There are zillions of things that Paludis does
differently from Portage -- some of these are intentional, some are not.
Do not try to use Paludis and Portage to install things inside the same root.
The config and vdb formats are not compatible!
Install Paludis locally, being sure to configure sysconfdir as /etc to avoid
confusion later on. There's an ebuild at:
http://svn.berlios.de/viewcvs/*checkout*/paludis/overlay/sys-apps/paludis/paludis-0.ebuild
You'll need libebt, eselect and subversion. You should seriously consider
grabbing an svn snapshot of eselect if 1.0.2 hasn't been released yet.
Make sure the test suite passes (either FEATURES="test" for Portage, or 'make
check'). If it fails, don't continue until you figure out why.
Set up a local bootstrap config directory. We're assuming you're using /mychroot
as the root path. The reason for doing things this way will become apparent
later on.
mkdir ~/.paludis-bootstrap
cat <<END > ~/.paludis-bootstrap/specpath
root = /mychroot
config-suffix =
END
Make some skeleton directories and files:
mkdir -p /mychroot/etc/{env.d,paludis/repositories}
mkdir -p /mychroot/var/{db/pkg,paludis/repositories/gentoo/distfiles}
mkdir -p /mychroot/tmp/
touch /mychroot/etc/ld.so.conf
Set up your keywords.conf. At the very least, you'll need a "* keywords" line.
Further lines can be added in the form "atom keywords".
cat <<END > /mychroot/etc/paludis/keywords.conf
* x86
dev-cpp/libebt x86 ~x86
sys-apps/paludis x86 ~x86
dev-util/subversion x86 ~x86
app-admin/eselect x86 ~x86
app-editors/vim x86 ~x86
app-editors/vim-core x86 ~x86
END
Set up your use.conf. At the very least, you'll need a "* flags" line. Again,
additional per-atom lines can be specified. The -apache2 is important, if you
value your sanity, since you'll be installing subversion.
cat <<END > /mychroot/etc/paludis/use.conf
* -doc nls unicode -apache2
app-editors/vim -nls
END
Set up your package_unmask.conf and package_mask.conf, if necessary:
cat <<END > /mychroot/etc/paludis/package_unmask.conf
app-editors/vim
app-editors/vim-core
END
Set up your bashrc. This must NOT be used to change any values that affect
dependency resolution (e.g. USE, LINGUAS). It can be used to set CFLAGS, CHOST
and the like (on some archs you'll have to do this to avoid getting junk from
your profile):
cat <<END > /mychroot/etc/paludis/bashrc
export CFLAGS="-O2 -march=pentium4 -fomit-frame-pointer"
export CXXFLAGS="\${CFLAGS}"
export CHOST="i686-pc-linux-gnu"
END
Set up your repository files. Do not tinker with the VDB location! Here we'll
avoid using /usr/portage for the main tree because sticking data that gets
changed on /usr is silly. We use the ${ROOT} variable, which is set magically,
to make the config work both in and outside of a chroot (this is one of the
reasons we have the weird-looking specpath thing).
cat <<END > /mychroot/etc/paludis/repositories/gentoo.conf
location = \${ROOT}/var/paludis/repositories/gentoo/
sync = rsync://rsync.europe.gentoo.org/gentoo-portage/
profile = \${ROOT}/var/paludis/repositories/gentoo/profiles/default-linux/x86/2006.0
format = portage
END
cat <<END > /mychroot/etc/paludis/repositories/installed.conf
location = \${ROOT}/var/db/pkg/
format = vdb
END
cat <<END > /mychroot/etc/paludis/repositories/paludis-overlay.conf
location = \${ROOT}/var/paludis/repositories/paludis-overlay/
sync = svn://svn.berlios.de/paludis/overlay
profile = \${ROOT}/var/paludis/repositories/gentoo/profiles/default-linux/x86/2006.0
eclassdir = \${ROOT}/var/paludis/repositories/gentoo/eclass
distdir = \${ROOT}/var/paludis/repositories/gentoo/distfiles
cache = /var/empty
format = portage
importance = 10
END
Now check that the config looks ok, and sync:
paludis --config-suffix bootstrap --list-repositories
sudo paludis --config-suffix bootstrap --sync
If you have problems, try adding "--log-level debug". This may or may not give
helpful information...
The initial sync will be slow. You can cheat and copy an existing Portage tree
checkout into /mychroot/var/paludis/repositories/gentoo/, but remember to
preserve mtimes and permissions if you do. Note that there's no hideously
painful 'Updating the Portage cache...' to go through. Paludis will use the
metadata cache, if available, but does not use the dep cache.
Now install baselayout and then system. We install baselayout manually first
because it's easier than creating a bunch of directories manually.
Note that Paludis will use src_test regardless of FEATURES (FEATURES is a
Portage thing, and Paludis doesn't use it any more than it has to).
Unfortunately, various system packages have broken test suites, so the system
install will probably bomb out midway unless you export SKIP_FUNCTIONS=test
beforehand.
Also note that there're a whole load of circular dependencies in system (ncurses
<-> gpm, patch <-> patch, gcc <-> glibc for example), so you'll almost certainly
need --dl-drop-circular at this stage.
paludis --config-suffix bootstrap --install --pretend --dl-drop-all sys-apps/baselayout
sudo paludis --config-suffix bootstrap --install --dl-drop-all sys-apps/baselayout
paludis --config-suffix bootstrap --install --pretend --dl-drop-circular system
sudo paludis --config-suffix bootstrap --install --dl-drop-circular system
Note that system will pull in Portage. That's a profiles thing that's
unavoidable for now. It won't pull in Paludis, so we do that manually:
paludis --config-suffix bootstrap --install --pretend sys-apps/paludis
sudo paludis --config-suffix bootstrap --install sys-apps/paludis
And that should (but probably won't) give you a usable chroot.
sudo cp /etc/resolv.conf /mychroot/etc/
sudo chroot /mychroot
export HOME=/root
cd
mount -tproc none /proc
mount -tsysfs none /sys
udevstart
eselect env update
source /etc/profile
( . /etc/paludis/bashrc ; gcc-config -1 )
eselect env update
source /etc/profile
paludis --install app-editors/vim
paludis --uninstall app-editors/nano
paludis --uninstall sys-apps/portage
vim: set et sw=4 spell spelllang=en :
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