I've decided to have a play with chroot on this ~amd64 xfce4 box, so I followed the instructions at http://www.gentoo.org/proj/en/base/amd64/technotes/index.xml?part=1&chap=4 to set up the jail in a separate partition mounted on /mnt/gentoo32. My idea is to use it for e.g. firefox-bin and its plugins, and maybe wine.
I have a few questions. First, the technotes are far from clear in explaining how the 32-bit chroot jail works, and unhelpful to a chroot acolyte like me in detailing how to build it, so I had to use my initiative - always a grave risk ;-) I unpacked an x86 stage 3, and set up hosts, networks and users as instructed, but when I tried "linux32 chroot /mnt/gentoo32 /bin/bash" I got a permission-refused error on /bin/bash. (I tried both with and without --login; it made no difference.) So I unpacked a portage snapshot, rebooted from the installation CD and tried again. I could then chroot. I reasoned that /bin/bash could not be executed because there was no 32-bit kernel, so I emerged and compiled gentoo-sources in /mnt/gentoo32. After that I could chroot from the installed system. But how much more of a Gentoo system do I need to build in the chroot jail? Emerge --sync? Emerge system? I have /mnt/tmp bound to /mnt/gentoo32/mnt/tmp, and /mnt/home, /mnt/boot, /mnt/usr/share and /mnt/usr/portage/distfiles bound similarly. Do I need to env-update whenever I chroot? What difference is there between chroot with and without --login, apart from sourcing /etc/profile etc? And when I've built it, how do I go about using it? No amount of googling helps me to understand, and the Gentoo docs are more-or-less silent on the subject. -- Rgds Peter Humphrey Linux Counter 5290, Aug 93. -- [email protected] mailing list
