Gentoo

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{{Languages|Gentoo}}
 
{{Languages|Gentoo}}
== Overview ==
 
Gentoo armv4tl-softfloat-linux-gnueabi optimalized for Openmoko (-Os -march=armv4t -mtune=arm920t) on 2008.0/arm profile (glibc based, sane bootstrapable toolchain)<br>
 
(embedded uclibc/arm profile armv4tl-softfloat-linux-uclibcgnueabi in plans)
 
  
[http://img46.imageshack.us/img46/646/80330048oy9.jpg Screenshot (hosted at ImageShack)]
+
= Gentoo on Openmoko phones =
  
== Read first ==
+
Gentoo project on Openmoko phones has its own homepage: [http://gentoo.mindzoo.de/ http://gentoo.mindzoo.de/]
'''http://www.gentoo.org/doc/en/handbook/handbook-arm.xml''' (Skip points 2 and 3)
+
  
 +
We have a portage overlay and some Openmoko packages like Xglamo, Illume or Zhone already have their ebuilds and many more will follow !
  
== Needed things ==
+
== Ways to work with Gentoo ==
 +
Currently, there are 3 ways to install Gentoo, each having their own advantages and disadvantages:
  
*At least 2GB SD card
+
* [http://gentoo.mindzoo.de/index.cgi/wiki/cross-compiling Cross compile approach], where you use another machine to compile your whole phone system. (Requires a Gentoo machine)
*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
+
  
 +
* [http://gentoo.mindzoo.de/index.cgi/wiki/native-compiling Native compilation approach], where you work with Gentoo on phone as with a normal system fully capable of installing its own packages.
  
== Installation ==
+
* [http://gentoo.mindzoo.de/index.cgi/wiki/qemu-user qemu-user emulated native compilation], where you use another machine 'chroot' into a gentoo filesystem (created by either of the methods above) and execute ARM binaries as if they were native executables.
=== Be careful, the overlay seems to be dead, so you'll have to manually compile (please make ebuilds if you do) illume and anything openomoko-specific ===
+
<ol>
+
<li>Partition your sd card if needed (don`t make swap partitions
+
(but see [http://lists.openmoko.org/pipermail/community/2008-September/031106.html]), ensure card isn't mounted): </li>
+
  fdisk /dev/mmcblk0
+
  
<li>Make ext2 or ext3 filesystem: </li>
+
{{Note|
  mkfs.ext2 /dev/mmcblk0p1
+
Many thanks go to 'torindel' who apparently started the effort and made a stage tarball we are using even today for the native approach and to Tuxxx who contributed strongly to the cross compilation efforts on gentoo for openmoko phones.
 +
}}
  
<li>Mount partition: </li>
+
== Getting Started ==
  mount /dev/mmcblk0p1 /media/card
+
* Read instructions on the project [http://gentoo.mindzoo.de/ homepage]
 +
* Visit the project overlay page [http://overlays.gentoo.org/proj/embedded overlay page]
  
<li>Copy stage and portage from host to moko (e.g. on localhost): </li>
+
== Community Support ==
  scp stage3-armv4tl-*.tar.bz2 portage-*.tar.bz2 root@openmoko:/media/card
+
If you wish to get (or provide) volunteer support for Gentoo on openmoko phones, please try one of the following.
  
<li>Unpack stage and portage: </li>  
+
=== IRC ===
  tar -xjpf /media/card/stage3-armv4tl-*.tar.bz2 -C /media/card
+
<nowiki>#</nowiki>gentoo-openmoko on [http://freenode.net/ Freenode]
  tar -xjpf /media/card/portage-*.tar.bz2 -C /media/card/usr
+
  
<li>Cleanup removing tar.bz2: </li>
+
=== Mailing List ===
  rm /media/card/stage3-armv4tl-*.tar.bz2 /media/card/portage-*.tar.bz2
+
Send an e-mail with the subject 'Subscribe' to [mailto:gentoo-embedded-request@lists.gentoo.org gentoo-embedded-request@lists.gentoo.org]
  
<li>Chroot: </li>
+
=== Bug Reports ===
  chroot /media/card /bin/bash
+
You can submit bug reports on the project [http://gentoo.mindzoo.de/index.cgi/newticket Trac] page.
  
<li>Update chroot environment: </li>
+
[[Category:Gentoo| ]]
  source /etc/profile; env-update
+
 
+
<li>Set timezone: </li>
+
  cp /usr/share/zoneinfo/YOURZONE /etc/localtime
+
 
+
<li>Set hostname: </li>
+
  nano /etc/conf.d/hostname
+
 
+
<li>Remove console font changing (small is beautiful ;]): </li>
+
  rc-update del consolefont boot
+
 
+
<li>Setup fstab: </li>
+
  nano /etc/fstab
+
 
+
<li>Edit inittab (hash out c3, c4, c5, c6, s0, s1 lines): </li>
+
  nano /etc/inittab
+
 
+
<li>Setup usb networking: </li>
+
  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
+
 
+
<li>Enable sshd: </li>
+
  rc-update add sshd default
+
 
+
<li>Change root password: </li>
+
  passwd
+
 
+
<li>Leave chroot: </li>
+
  exit
+
 
+
<li>Copy kernel. </li>
+
  cp /boot/uImage-2.6.24 /media/card/boot/
+
 
+
<li>Copy modules. </li>
+
  cp -rpf /lib/modules /media/card/lib/
+
 
+
<li>Setup uboot for booting from sd card. </li>
+
<li>Reboot. </li>
+
<li>Setup/emerge rest of the system. </li>
+
 
+
== 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
+
:<tt>e.g.</tt> <pre>echo "PORTAGE_BINHOST=\"http://torindel.sezamkowa.net/openmoko/armv4tl-softfloat-linux-gnueabi/~arm/packages/All\"" >> /etc/make.conf</pre>
+
*Update environment
+
:<tt>e.g.</tt> <pre>source /etc/profile; env-update</pre>
+
*Setup install mask if you don't want compiler headers/docs etc (mask headers only if you'll be always using binary packages)
+
:<tt>e.g.</tt> <pre>export INSTALL_MASK="*.h"</pre>
+
*Add the following line to make.conf to tell portage to always use binary packages. <pre>EMERGE_DEFAULT_OPTS="-gK"</pre>
+
 
+
== Alternative: Squashed Portage ==
+
An alternative to installing a full, writable, and uncompressed portage tree directly on the microSD card, is to compress portage using SquashFS and then to mount the resulting SquashFS file (usually compressed from about 500 MB to 50 MB) at /usr/portage.
+
 
+
In this case, it is also suggested to set DISTDIR to /tmp/distfiles, because the default DISTDIR (/usr/portage/distfiles) is not writable. Similarly, PKGDIR can be set to /tmp/binpkgs instead of the default /usr/portage/packages.
+
 
+
See [http://perpetual-notion.blogspot.com/2008/06/gentoo-on-eee-pc.html this] blog post for further details. If you are lacking in extra space on your flash device, or are concerned about extraneous write-cycles to your flash memory, then you should perform all of the steps on desktop linux machine and then finally copy the resulting squashfs image to the FreeRunner.
+
 
+
== 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]]<br>
+
Overlay with moko things and more packages coming soon.
+
 
+
[[category:Distributions]]
+

Latest revision as of 10:12, 15 August 2009


Contents

[edit] Gentoo on Openmoko phones

Gentoo project on Openmoko phones has its own homepage: http://gentoo.mindzoo.de/

We have a portage overlay and some Openmoko packages like Xglamo, Illume or Zhone already have their ebuilds and many more will follow !

[edit] Ways to work with Gentoo

Currently, there are 3 ways to install Gentoo, each having their own advantages and disadvantages:

  • Cross compile approach, where you use another machine to compile your whole phone system. (Requires a Gentoo machine)
  • Native compilation approach, where you work with Gentoo on phone as with a normal system fully capable of installing its own packages.
  • qemu-user emulated native compilation, where you use another machine 'chroot' into a gentoo filesystem (created by either of the methods above) and execute ARM binaries as if they were native executables.
NOTE:

Many thanks go to 'torindel' who apparently started the effort and made a stage tarball we are using even today for the native approach and to Tuxxx who contributed strongly to the cross compilation efforts on gentoo for openmoko phones.


[edit] Getting Started

[edit] Community Support

If you wish to get (or provide) volunteer support for Gentoo on openmoko phones, please try one of the following.

[edit] IRC

#gentoo-openmoko on Freenode

[edit] Mailing List

Send an e-mail with the subject 'Subscribe' to gentoo-embedded-request@lists.gentoo.org

[edit] Bug Reports

You can submit bug reports on the project Trac page.

Personal tools

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


Installation

Be careful, the overlay seems to be dead, so you'll have to manually compile (please make ebuilds if you do) illume and anything openomoko-specific

  1. Partition your sd card if needed (don`t make swap partitions (but see [1]), ensure card isn't mounted):
  2.  fdisk /dev/mmcblk0
    
  3. Make ext2 or ext3 filesystem:
  4.  mkfs.ext2 /dev/mmcblk0p1
    
  5. Mount partition:
  6.  mount /dev/mmcblk0p1 /media/card
    
  7. Copy stage and portage from host to moko (e.g. on localhost):
  8.  scp stage3-armv4tl-*.tar.bz2 portage-*.tar.bz2 root@openmoko:/media/card
    
  9. Unpack stage and portage:
  10.  tar -xjpf /media/card/stage3-armv4tl-*.tar.bz2 -C /media/card
     tar -xjpf /media/card/portage-*.tar.bz2 -C /media/card/usr
    
  11. Cleanup removing tar.bz2:
  12.  rm /media/card/stage3-armv4tl-*.tar.bz2 /media/card/portage-*.tar.bz2
    
  13. Chroot:
  14.  chroot /media/card /bin/bash
    
  15. Update chroot environment:
  16.  source /etc/profile; env-update
    
  17. Set timezone:
  18.  cp /usr/share/zoneinfo/YOURZONE /etc/localtime
    
  19. Set hostname:
  20.  nano /etc/conf.d/hostname
    
  21. Remove console font changing (small is beautiful ;]):
  22.  rc-update del consolefont boot
    
  23. Setup fstab:
  24.  nano /etc/fstab
    
  25. Edit inittab (hash out c3, c4, c5, c6, s0, s1 lines):
  26.  nano /etc/inittab
    
  27. Setup usb networking:
  28.  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
    
  29. Enable sshd:
  30.  rc-update add sshd default
    
  31. Change root password:
  32.  passwd
    
  33. Leave chroot:
  34.  exit
    
  35. Copy kernel.
  36.  cp /boot/uImage-2.6.24 /media/card/boot/
    
  37. Copy modules.
  38.  cp -rpf /lib/modules /media/card/lib/
    
  39. Setup uboot for booting from sd card.
  40. Reboot.
  41. Setup/emerge rest of the system.
  42. 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"

    Alternative: Squashed Portage

    An alternative to installing a full, writable, and uncompressed portage tree directly on the microSD card, is to compress portage using SquashFS and then to mount the resulting SquashFS file (usually compressed from about 500 MB to 50 MB) at /usr/portage.

    In this case, it is also suggested to set DISTDIR to /tmp/distfiles, because the default DISTDIR (/usr/portage/distfiles) is not writable. Similarly, PKGDIR can be set to /tmp/binpkgs instead of the default /usr/portage/packages.

    See this blog post for further details. If you are lacking in extra space on your flash device, or are concerned about extraneous write-cycles to your flash memory, then you should perform all of the steps on desktop linux machine and then finally copy the resulting squashfs image to the FreeRunner.

    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.

    </div>