ReferencePlatforms/Linux-Public

You can get the reference platform here: ftp://ftp.mozilla.org/pub/mozilla/VMs. If you are working on one of the community machines, we can also clone these scrubbed VMs onto community machines for you.

Using This VM as a Development Environment

By default, the reference platform only runs a console and a VNC server. If you want to use it for actual development you'll probably want to run X. Here's how to do it:

• Disable the VNC server with this command:
chkconfig --level 2345 vncserver off
• Change the default run level. As root, run:
sed -i -e 's/^id:[0-9]:initdefault:$/id:5:initdefault:/' /etc/inittab

Reboot, and you should be graphical! CentOS uses 'yum' as it's RPM front-end. You should be able to install most applications/tools you need through it. If you'd like a graphical front-end you can run 'pirut'.

Installing BuildBot

Because our Buildbot code changes fairly regularly we don't keep a copy of it on the VM.

export PYTHONPATH=".:/tools/zope-interface/lib/python2.5/site-packages/:/tools/twisted-core/lib/python2.5/site-packages:/tools/twisted/lib/python2.5/site-packages/:$PYTHONPATH"
export PYTHONHOME="/tools/python"
export PATH="/tools/python/bin:/tools/twisted/bin:/tools/twisted-core/bin:$PATH"
cd /tools
hg clone http://hg.mozilla.org/build/buildbot
cd /tools/buildbot
python setup.py install --prefix=/tools/buildbot
# buildbotcustom is only required if you're running a Buildbot master
cd /tools
mkdir buildbotcustom
cd buildbotcustom
hg clone http://hg.mozilla.org/build/buildbotcustom

Usernames and Passwords

By default, this image has two accounts:
(username)/(password)
root/root
cltbld/cltbld

Running under VirtualBox

• Download the machine image as usual, and decompress it to $img
• Import the $img/CentOS-5.0-ref-tools-vm.vmdk (hereafter "hda") and $img/CentOS-5.0-ref-tools-vm_1.vmdk (hereafter "hdb") disk images into your VirtualBox media manager
• Create a new VirtualBox machine that has the disks "hda" and "hdb", in that order (IDE0 master and slave, respectively)
• Edit the VirtualBox machine config to taste: recommendations include adding more RAM and VRAM. Be sure to restart the VirtualBox master process if you edit a machine config.
• Here we de-VMWare the image. The "big difference" is that VMWare uses virtual SCSI devices while VirtualBox uses virtual IDE devices.
  1. su root [ see password below ]
  2. cd /etc
  3. mv vmware-tools bak.vmware-tools
  4. mv fstab bak.fstab
  5. cp fstab.BeforeVMWareToolsInstall fstab
  6. Append the line

/dev/hdb1  /builds/  ext3  defaults  1 2

to /etc/fstab, using your favorite text editor. Format to taste.

• 1. Reboot (it's normal to see errors from VMWare during init, since it was mostly disabled)
  2. Your image works ...?

These steps can trigger an fsck of /dev/hdb1. This is useful and fast, let it happen.

If you want a graphical environment, be sure to change your runlevel as described above. When you first reboot into a graphical environment, X will fail to start because the xorg.conf is VMWare-specific. In the error dialogs that appear, choosing the option to let X "repair itself" will result in a usable 800x600 display.

Troubleshooting

• Make sure you login as cltbld. root will not have the correct PATH and environment variables set.
• You may get an error about "Stale Data" when running this VM in VMware Workstation for the first time. It can be safely ignored.
• If vmware tools doesn't install/upgrade correctly, try running vmware-config-tools.pl as root.
• Bridged Network does not seem to work when using that image in VMWare Server (1.0x), NAT seems to work fine
• The /builds partition might not get added properly add this to /etc/fstab:

/dev/sdb1               /builds                 ext3    defaults        0 0