Business Simulation Programs. I know that there are plenty of threads here that instruct me on how to do this but I have seen those threads and they jump around in a random order. At a guess (And it is just a guess) The Mac was supplied with a later build of 10.5 originally. So installing an older version (IE 10.5.0) wont be accepted.

I'm trying to update an old iMac to 10.5. My original 10.5 disk doesn't work, but I have a.DMG that I made of it way back, and now I've used Disk Utility to make DVDs or thumbdrives as volumes of the.DMG. Problem is, none of my machines (older laptops, Mac Pros) can boot off the resulting volumes. I can see them and they look fine in Finder when plugged in, but when I run the updater that's on there, and it reboots to start installation, all I see is the gray apple and nothing past that.

What am I missing - why can't it run the OS updater from a volume made from the DMG of the original install disk? Posted on Jan 30, 2016 5:06 AM. Apple Footer This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums.

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Apple Footer This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site.

All postings and use of the content on this site are subject to the.