Upgrade High Sierra

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Upgrade High Sierra

I have an iMac late 2009 model running Sierra. I have 4gig but I will upgrade it to 8gig. It is the 3.06 GHz Intel Core 2 Duo model. As I said, I am running Sierra on it but I would like to upgrade it to High Sierra. I am a little hesitant to upgrade it. I would like to use this iMac to install current and beta versions of MacOS but I am not sure hardware wise if it is the best decision. I know this iMac can support High Sierra but I don't know performance wise if the Mac is going to suffer. This Mac does very well on Sierra. I know this iMac is on the low end of the supported list. I would hate to install High Sierra and struggle with performance issues then downgrade to Sierra. I will add the new memory first before I proceed with upgrading it.

iMac, macOS High Sierra (10.13)

Posted on Feb 12, 2018 4:24 PM

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Answer 1

Feb 12, 2018 4:31 PM in response to pfisher112

If you are concerned about upgrading, may I suggest you create a bootable clone prior to doing the upgrade. Having a backup is always a good plan when doing an upgrade. In this case the bootable clone will allow you to be back up and running again if anything at all goes wrong with the upgrade. In addition, it will allow you to fall back to your current software that is running well with only a reboot.

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Answer 2

Feb 13, 2018 10:10 AM in response to pfisher112

The thing that I see as the most important reason to upgrade to High Sierra is the security updates.

My suggestion is to clone your current disk drive to another drive. Then upgrade the clone to High Sierra. After you have tested with the clone you can decide to either remain at where you are currently or restore the clone to your disk drive and run with the upgraded operating system.

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Answer 3

pfisher112 Author

Level 1

43 points

Feb 13, 2018 8:25 AM in response to Allan Eckert

I am not concerned about losing any data. I know about TM and backing up the Mac before upgrading it. I am looking at more from a stand point of hardware performance and the benefits of High Sierra. Besides the file system, what has changed in High Sierra? I mean feature to feature, both OSes are closely the same. There might be some slight changes or improvements in High Sierra but nothing that jumps out. Again, I know that I can revert back to Sierra, if needed, so I might try it and see how the Mac responds.

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Answer 4

Feb 12, 2018 4:26 PM in response to pfisher112

See: Upgrading macOS without fear

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Upgrade High Sierra

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