
Obviously this isn't a problem with external hard drives, however with those there is a different kind of caveat: certain devices (e.g. (This shouldn't be a huge deal since such drives are so cheap nowadays, but it's worth bearing in mind.) So, if you want to do this then you need to accept that your flash drive will fail sooner than it otherwise would. Putting an OS on it, however, is a different kettle of fish: lots and lots of writes on a regular basis. Ordinarily, this isn't a big deal when all you're doing is using it as a music player or an external storage device. A USB flash drive of at least 2GB (more on this later) OR an external USB or FW-based hard drive OR an iPod (but not a 5G and almost certainly not a classic or a touch 4G might work no idea about minis, nanos, etc.).īefore we start, a quick note about using a flash-based drive: flash memory has a fairly finite write-limit.
#Copycatx please rebuild volume mac#
One important thing to note, however: if you use an Intel Mac to create your bootable media, you will only be able to boot other Intel Macs, not PPC Macs (and vice versa if you use a PPC Mac to create the bootable drive). There is a little wiggle room here, depending on exactly what Mac and what installation discs you have, but in general you want to use the discs that came with that machine, otherwise there's a good chance this won't work for you. Installation media for that particular Mac. I did this on a C2D MacBook, which has an Intel chipset, but I've seen reports of this method working for PPC Macs as well. A Mac with a working installation of OS X. I'm not responsible if things break as a result, and of course it's up to you to ensure that you're kosher WRT legitimate installation media, site licenses, etc. If you follow these instructions you do so at your own risk. 2.0 GB SanDisk Cruzer Titanium flash drive (USB): works perfectly 5th gen iPod (USB): refuses to boot an inherent limitation of the 5G, AFAIK 3rd gen iPod (FireWire): works perfectly 2.5" laptop drive in MacAlly external enclosure (FireWire): works perfectly

So far, I've tested this method with the following:
#Copycatx please rebuild volume how to#
But then why limit myself to external hard drives? Why not go one better and figure out how to cram a usable OS X installation into a really small space, opening up the world of OS X.on a thumb drive? - View image here:. I needed a better solution: boot from an external drive. However, occasionally things don't go as planned and when that happens I really don't like having to boot from the slow, limited functionality installation DVDs that came with my computer.

We all know that OS X is pretty damn stable piece of wondrousness.

(Note: This guide is adapted from one I found buried in Google's cache, so I thought Ars might appreciate a more accessible, updated version.)
