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…make a copy of the installer first.

Once you download Mac OS X Lion, if you press ‘Continue’ and charge on, the installation process will remove the installer once it’s done. (This may not happen until after restarting, but I haven’t details on this.)

If you’re anything like me, you’ll want to make a copy of the installer as a backup, if nothing else to save downloading the whole thing again. You can make installation DVDs or thumb drives.

One good take on this can be found on David Alison’s blog. (Read the comments, too.)

Footnote

I haven’t tried this, I’m just relaying it on in case it benefits others. I’m likely to hold off upgrading for a while as I invariably do.

For regular readers: I have longer posts in the works, but I’m waiting on tech support to put right an issue with the blog before putting them out. In the meantime all I can do is ask for your patience! I’m very sorry about this, but it’s a little out of my hands. Hopefully this will be put right sooner rather than later.