Just tried booting it off a memory stick that allegedly has OS X 10.7 and it doesn't work, but the stick is old and may be damaged. I have 10.4 (Tiger), 10.5 (Leopard) and 10.6 (Snow Leopard) on DVD-ROM - they're versions that will work on any compatible mac, not the "shipped with an individual machine" grey disks.
Would it be possible to do this sort of DVD to USB transfer on my MacBook Pro (running 10.13) without messing up the hard drive, or would I be better off doing it on the windows 7 box.
Update - 7.55 Tuesday - I tried to get a memory stick install to work and failed (probably did something wrong setting up the stick), but decided to try one of the old Mac DVD drives I have with a Firewire to IDE interface from an old external hard drive. And amazingly it worked pretty well once I found a drive that was still reading reliably - got Snow Leopard installed in about an hour, I'm now getting the updates downloaded from Apple and installing them. Hopefully I'll get the thing on sale in the next day or two.
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