Gentoo Archives: gentoo-embedded

From: Joakim Tjernlund <joakim.tjernlund@×××××××××.se>
To: gentoo-embedded@l.g.o
Subject: Re: [gentoo-embedded] quickpkg and PKG_INSTALL_MASK
Date: Tue, 27 Dec 2011 09:41:14
Message-Id: OFA55E0038.ABDEA121-ONC1257973.0034AC46-C1257973.00352CBB@transmode.se
In Reply to: Re: [gentoo-embedded] quickpkg and PKG_INSTALL_MASK by solar
solar <solar@g.o> wrote on 2011/12/26 21:38:52:
> > On Mon, 2011-12-26 at 19:03 +0100, Joakim Tjernlund wrote: > > solar <solar@g.o> wrote on 2011/12/25 18:52:52: > > > > > > On Sun, 2011-12-25 at 11:34 +0200, Kfir Lavi wrote: > > > > > > > > > > > > On Fri, Dec 23, 2011 at 3:23 PM, Joakim Tjernlund > > > > <joakim.tjernlund@×××××××××.se> wrote: > > > > > > > > I got the impression from docs that PKG_INSTALL_MASK would > > > > actually > > > > mask files out so they never get into the binary package, this > > > > doesn't > > > > seem to happen. > > > > Did I misunderstand? If I did, I think an MASK to do the above > > > > would be a worthy addition to quickpkg, very useful for > > > > embedded targets to keep the pkg size down. > > > > Also PKG_INSTALL_KEEP which would list files keep(rest is > > > > dropped) would be nice. > > > > > > > > Oh, something else I wonder about. How does pre/post install > > > > work with > > > > quickpkgs? Is it possible to have such scripts and then have > > > > qmerge execute > > > > them? > > > > > > > > Jocke > > > > > > > > > > > > Yes, PKG_INSTALL_MASK on time of installation will mask the files > > > > defined in it. > > > > Binary package do contain all files, even the masked files. > > > > Kfir > > > > > > > > > $PKG_INSTALL_MASK is supposed to omit the files in it's list from making > > > it into the binary pkgs in the first place. The idea there was to make > > > smaller binary pkgs for embedded devices and such (for use only with > > > private repos). > > > > > > $INSTALL_MASK is supposed to omit the files listed in it from being > > > installed on the file system. > > > > Hi Solar, long time no see :) > > > > So the current behaviour is a bug, good to know. > > I would not really call it a bug. *INSTALL_MASK is a portage feature > itself. quickpkg does not support all the features of portage itself. > You could/should file a feature request bug for quickpkg to add such > support. Maybe file a bug for portage-utils@ as well because I just > checked and looks like we never added support for PKG_INSTALL_MASK in > qpkg.c (c version of quickpkg)
I don't really get the difference between the two as impl. today. What can PKG_INSTALL_MASK do that INSTALL_MASK can't(or vice versa)?
> > > > I am contemplating a greater problem too. Our system require we can install > > multiple versions of our SW and switch between them. This is easy to do when it > > comes to our own app but not when one want to upgrade core parts of the system, like > > libc etc. > > > > So I am thinking one could use --bind mounts and switch_root to solve that. Basically > > one has a skeleton root FS with /bin, /lib, /usr /opt etc. > > Each upgrade goes into dirs like: > > bin_1.x.y/ usr_1.x.y/ lib_1.x.y/ opt_1.x.y/ sbin_1.x.y/ > > Then, from an initramfs, one selects which of xxx_1.x.y dir one wants to use > > and --bind mounts them under the corresponding skeleton dir. > > > > To do that one needs an way to repackage a root fs created by a bunch of different > > ebuilds, some of them spanning several of the above dirs, into a package per xx_1.x.y dir. > > Not sure if this can be done with the current portage/portage-utils and how, any > > ideas welcome :) > > > > Perhaps there is a better way then the above? > > > > Jocke > > Not sure about all this.
Yeah, it is a bit much :) I either case it would be nice if one could group several bianry pkgs into one that qmerge can install. Is that possible? Jocke

Replies

Subject Author
Re: [gentoo-embedded] quickpkg and PKG_INSTALL_MASK Kfir Lavi <lavi.kfir@×××××.com>