On 1 August 2014 15:28:01 CEST, Dale <rdalek1...@gmail.com> wrote: >Peter Humphrey wrote: >> On Friday 01 August 2014 14:07:08 I wrote: >> >>> I run a couple of chroots on this box to build packages for other >boxes on >>> the LAN. So far, I haven't worked out what I should populate >/etc/mtab with >>> in each chroot. Is it enough to "grep ext4 /etc/mtab > >>> /mnt/chroot/etc/mtab"? That catches all the physical partitions, but >I >>> imagine I need to add some /proc, /sys and /dev entries as well, but >is >>> there a simple formula for doing this? >> I meant to add that one chroot is 32-bit and the other is 64. The >host is an >> i5 running openrc. >> > >It has been a good while since I used this. So, make sure it makes >sense to you before trying this. This may not work if something has >changed in the past several years. Use with caution if at all. > >This is a little script, if you want to call it that, that I used to do >mine. It also lists the command to use to do a 32 bit chroot from a 64 >bit rig. Here it is: > >root@fireball / # cat /root/xx.chroot-mount-32bit > > >mount -o bind /dev /mnt/gentoo32/dev >mount -o bind /dev/pts /mnt/gentoo32/dev/pts >mount -o bind /dev/shm /mnt/gentoo32/dev/shm >mount -o bind /proc /mnt/gentoo32/proc >mount -o bind /proc/bus/usb /mnt/gentoo32/proc/bus/usb >mount -o bind /sys /mnt/gentoo32/sys >mkdir -p /mnt/gentoo32/usr/portage/ >mount -o bind /usr/portage /mnt/gentoo32/usr/portage/ > > >echo " mounting finished" > >echo "run linux32 chroot /mnt/gentoo32 /bin/bash next" >root@fireball / # > > >You may have different mount points at the very least so edit to match >what you have. Again, things could have changed and that no longer >will >work. It may not be a bad idea to let someone who has done this more >recently to give a thumbs up to that. > >That last command should be: > >linux32 chroot /mnt/gentoo32 /bin/bash > >Dale > >:-) :-)
That script is too long :) cd /mnt/gentoo mount -o rbind /dev dev mount -o rbind /sys sys mount -o rbind /proc proc cp -L /etc/resolv.conf etc/resolv.conf cd .. chroot gentoo /bin/bash To undo: cd /mnt/gentoo umount -l proc sys dev If you need a 32bit chroot, put linux32 before the chroot like Dale mentioned. -- Joost -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
