Boot Leopard from USB device

28 September 2007

Leopard OSXGet a USB hard drive (or use your iPod if you are brave enough to wipe that?) and partition it into two pieces, the first will act as the installation disk, the other will become the partition leopard will live on.

Installation will take around 45 minutes and the system overall performs quite well off of the USB disk; however running or indeed building in XCode really is painfull!

Thinking about it however; I would prefer a slow system to wiping my Tiger installation off of my laptop and being left with an early beta of Leopard (trust me it is still an early beta!)

  1. Open Disk Utility and select the drive to partition
  2. Click the partition tab and choose 2 partitions
  3. Make the install partition 10Gb in size and set it to Mac Journaled
  4. Make the destination partition fill the rest of the drive and set to Mac Journaled
  5. If your using an Intel machine; select the destination partition and click options, choose Guid Partition Table, click OK
  6. Click the partition button to start partitioning the disk
  7. Once done select the install partition and click the restore tab and restore from the leopard_client dmg you have downloaded from Apple (*Paid ADC membership is required)
  8. Click the restore button to copy across the installation files
  9. Restart the machine whilst holding down the Option key and choose to boot form the install partition
  10. Follow the installation instructions and choose to install to the destination partition (will only not be available if you forgot to set the partition schema to Guid Partition Table, in which case you will have to start from the beginning again! DOH!)
  11. Leopard will eventually boot and download any updates, to default boot to Tiger; open system preferences and choose Tiger from the Startup Disk menu