Can I dual boot with Snow Leopard and El Capitan on the same mac?

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Can I dual boot with Snow Leopard and El Capitan on the same mac?

I've been hoping to upgrade for sometime and El Capitan seemed best to go to from my current Snow Leopard.

Except I found certain old apps that still have their uses; Photoshop CS2 (with Nikon coolscan V plugin for slide and negative scanning) will not work with El Capitan. So I want to keep Snow Leopard around just in case and have the option of booting up in either SL or El Capitan.

Can go ahead and partition the HD to a size applicable to the El Capitan requirements and install, keep and use the two OS for daily stable work?

Thanks in advance for any help.

iMac, Mac OS X (10.6.8)

Posted on Oct 21, 2015 3:21 PM

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FatMac-MacPro

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Oct 21, 2015 3:51 PM in response to Mark Harrison2

You don't say which Mac you have so we can't be sure it'll support El Capitan. But if it does, you can have each on a partition and run them (I do). But El Capitan creates a drive structure called Core Storage which Snow Leopard won't recognize. You'll be able to select SL from El Cap but to go back to El Cap, you'd need to use Startup Manager (Option key down at the chime).

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