Gentoo

Revision as of 17:07, 9 October 2008

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Overview

Gentoo armv4tl-softfloat-linux-gnueabi optimalized for Openmoko (-Os -march=armv4t -mtune=arm920t) on 2008.0/arm profile (glibc based, sane bootstrapable toolchain)
(embedded uclibc/arm profile armv4tl-softfloat-linux-uclibcgnueabi in plans)

Screenshot (hosted at ImageShack)

Read first

http://www.gentoo.org/doc/en/handbook/handbook-arm.xml (Skip points 2 and 3)

Needed things

• At least 2GB SD card
• Gentoo stage: http://torindel.sezamkowa.net/openmoko/armv4tl-softfloat-linux-gnueabi/~arm/
• Portage snapshot: look for mirror on: http://www.gentoo.org/main/en/mirrors2.xml and get snapshots/portage-DATE.tar.bz2
• Kernel and modules
• Any working Openmoko distro

Installation

1. Partition your sd card if needed (don`t make swap partitions, ensure card isn't mounted):

 fdisk /dev/mmcblk0

2. Make ext2 or ext3 filesystem:

 mkfs.ext2 /dev/mmcblk0p1

3. Mount partition:

 mount /dev/mmcblk0p1 /media/card

4. Copy stage and portage from host to moko (e.g. on localhost):

 scp stage3-armv4tl-*.tar.bz2 portage-*.tar.bz2 root@openmoko:/media/card

5. Unpack stage and portage:

 tar -xjpf /media/card/stage3-armv4tl-*.tar.bz2 -C /media/card
 tar -xjpf /media/card/portage-*.tar.bz2 -C /media/card/usr

6. Cleanup removing tar.bz2:

 rm /media/card/stage3-armv4tl-*.tar.bz2 /media/card/portage-*.tar.bz2

7. Chroot:

 chroot /media/card /bin/bash

8. Update chroot environment:

 source /etc/profile; env-update

9. Set timezone:

 cp /usr/share/zoneinfo/YOURZONE /etc/localtime

10. Set hostname:

 nano /etc/conf.d/hostname

11. Remove console font changing (small is beautiful ;]):

 rc-update del consolefont boot

12. Setup fstab:

 nano /etc/fstab

13. Edit inittab (hash out c3, c4, c5, c6, s0, s1 lines):

 nano /etc/inittab

14. Setup usb networking:

 echo "modules=\"g_ether\"" >> /etc/conf.d/modules
 ln -s /etc/init.d/net.lo /etc/init.d/net.usb0
 echo "config_usb0=\"192.168.0.202 netmask 255.255.255.0\"" > /etc/conf.d/net
 echo "routes_usb0=\"default via 192.168.0.200\"" >> /etc/conf.d/net
 echo "nameserver 192.168.0.200" > /etc/resolv.conf

15. Enable sshd:

 rc-update add sshd default

16. Change root password:

 passwd

17. Leave chroot:

 exit

18. Copy kernel.

 cp /boot/uImage-2.6.24 /media/card/boot/

19. Copy modules.

 cp -rpf /lib/modules /media/card/lib/

20. Setup uboot for booting from sd card.
21. Reboot.
22. Setup/emerge rest of the system.

Emerging binary packages

• Binary package sites

http://tinderbox.dev.gentoo.org/embedded/openmoko/armv4tl-softfloat-linux-gnueabi/

http://torindel.sezamkowa.net/openmoko/armv4tl-softfloat-linux-gnueabi/~arm/packages/All

• Add PORTAGE_BINHOST to make.conf

e.g.

echo "PORTAGE_BINHOST=\"http://torindel.sezamkowa.net/openmoko/armv4tl-softfloat-linux-gnueabi/~arm/packages/All\"" >> /etc/make.conf

• Update environment

e.g.

source /etc/profile; env-update

• Setup install mask if you don't want compiler headers/docs etc (mask headers only if you'll be always using binary packages)

e.g.

export INSTALL_MASK="*.h"

• Add the following line to make.conf to tell portage to always use binary packages.

  EMERGE_DEFAULT_OPTS="-gK"

Openmoko Overlay

Add svn://torindel.sezamkowa.net/openmoko to layman (emerge layman)

Binary package wishlist

As i'll be adding some packages to ftp above you might want to ask for some package here: GentooPackageWishList


Overlay with moko things and more packages coming soon.