Gentoo Build Environment on the NAS

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This HowTo will explain how i managed to update the gentoo build environment

Before you update, install the buildroot as described here: http://www.nas-2000.org/mwiki/index.php?title=Compile_Programs_on_the_NAS

Note: Unpacking the "stage3-armv4l-2005.1.tar.bz2" seems not to be possible on the NAS. I used a Live Linux CD with the NAS connected via USB.

Use this manual on your own risk! There are no guaranties!

Contents

[edit] Ready To Run

for an updated ready to run environment: http://nas-2000.org/download/build-root/

Remember to change the /etc/resolve.conf file !

Again, use on your own risk !

[edit] Backup the Build Environment

To backup, connect the NAS via USB: tar -cjpvf gentoo_buildenv_`date +%Y%m%d`.tbz2 ./gentoo

[edit] Start Update Process

Please be aware updating will take a long time, so i installed "screen" (see below). Now i can close the ssh connection, shutdown my computer and reconnect the next morning ;-)

BTW: Without updating the build environment it seems not to be possible to install "vim". Installing "ccache" worked for me.

after i installed the buildroot i got this message: 

# emerge --sync
* An update to portage is available. It is _highly_ recommended
* that you update portage now, before any other packages are updated.
* Please do so and then update ALL of your configuration files.

[edit] Update Portage

i tried to update portage: 

# emerge sys-apps/portage
Calculating dependencies \!!! Cannot resolve a virtual package name to an ebuild.
!!! This is a bug, please report it. (virtual/libiconv-0)

i found: http://www.gentoo.org/proj/en/portage/doc/manually-fixing-portage.xml

here is a short version: 

# wget -P /usr/portage/distfiles http://distfiles.gentoo.org/distfiles/portage-2.1.1.tar.bz2
# cd /root
# mkdir portage-recover
# cd portage-recover
# tar xfj /usr/portage/distfiles/portage-2.1.1.tar.bz2
# cd /root/portage-recover/portage-2.1.1
# cp -R pym bin /usr/lib/portage/
# rm -f /usr/lib/portage/bin/sed

now: 

# emerge --metadata 
!!! Problem with sandbox binary. Disabling...
!!! Problem with sandbox binary. Disabling...
>>> Updating Portage cache:  100%

to fix the sandbox error i tried: 

# emerge -av sandbox

success :-) 

# emerge -av sys-apps/portage
These are the packages that would be merged, in order:
Calculating dependencies... done!
[blocks B     ] <dev-lang/python-2.3.6-r2 (is blocking app-admin/python-updater-0.2)

[edit] Update Python

i found: http://home.leo.org/~loescher/gentoo.html 

# quickpkg =dev-lang/python-2.3.5
* Building package for python-2.3.5 ...  [ ok ]
* Packages now in /usr/portage/packages:
* python-2.3.5: 6.5M
# emerge --nodeps -avt =dev-lang/python-2.4.4-r6
# emerge -pC python
# emerge -aC =dev-lang/python-2.3.5

[edit] Install Screen

now compile "screen", this will allow you to reconnect to a session 

#USE="-pam" emerge -av screen 
#mount -t devpts none /dev/pts/

the next step will take about 15 hours ... 

#screen emerge -avt python-updater

[edit] Install strace

install strace (for tracing) 

#screen emerge -avt strace

[edit] Sync Build Environment

create "rsync_excludes" again ... 

#cd /etc/portage
#touch rsync_excludes
#emerge --sync
** Skipping packages. Run 'fixpackages' or set it in FEATURES to fix the
   tbz2's in the packages directory. Note: This can take a very long time.
* IMPORTANT: 11 config files in '/etc' need updating.
* See the CONFIGURATION FILES section of the emerge
* man page to learn how to update config files.

and: 

#etc-update

will fix 5 of 11 errors ... till now i did not try to merge the remaining 6 erros ...

[edit] Install vim

now you can install "vim" 

#screen emerge -avt vim
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