Upgrade iMac 10.4.11 to OS 10.5

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Level 1

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Upgrade iMac 10.4.11 to OS 10.5

Wanting to upgrade my Intel iMac from 10.4.11 to 10.5 and finally 10.6. I have the install disks from my new MacBook Pro which has 10.5.7, but it will not work. Just curious why? I am looking at ebay for the 10.5 retail disk for installation. Are the disks that come with the MacBook Pro only for it? I have been a lifelong Mac user (SE-30, II si, Power Computing Power Center Pro, Ti powerbook, Clamshell ibook, G4 ibook, and not my iMac and MacBook Pro) and have usually been able to install from any type of disk.

Thanks

Intel iMac Core 2 Duo, Mac OS X (10.4.11)

Posted on Aug 30, 2009 12:51 PM

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Answer 1

Niel

Level 10

727,175 points

Aug 30, 2009 12:58 PM in response to kcorton

Are the disks that come with the MacBook Pro only for it?

Yes.

(46919)

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Answer 2

Dah•veed

Level 9

64,723 points

Aug 30, 2009 1:02 PM in response to kcorton

1.) The restore DVDs that accompany new Macs are machine specific, as is the version of Mac OS X which they contain. They are unusable with another Mac. 2.) To use them to install Mac OS X on another Mac is dishonest. The End User License Agreement allows you to install the software on one Mac.
If you purchase the Snow Leopard Box Set, it will upgrade a Mac from Tiger to Snow Leopard legally, and give you iLife '09 and iWork as well. Unless you purchase the Family Pack, the EULA is also for one Mac. The Family Pack EULA is for up to five Macs.
Dah•veed

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Answer 3

kcorton Author

Level 1

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Aug 30, 2009 1:15 PM in response to kcorton

I thought the OS 10.6 was only for upgrades from 10.5? That is what the info stated the last time I checked.

Thanks for the answers...buying 10.5 from ebay seems to be my only recourse, since I do not see it available from the apple store, or from MacMall or Mac Connection.

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Answer 4

Dah•veed

Level 9

64,723 points

Aug 30, 2009 1:49 PM in response to kcorton

If you have Mac OS X 10.5 Leopard on your Mac you can purchase a US$29.00 upgrade for Snow Leopard.
If you never purchased the US$79.00 upgrade for Mac OS X 10.4 Tiger to Leopard, you must buy the US$179.00 Snow Leopard Box Set to go directly from Tiger to Snow Leopard. Which as I said the Box Set also includes the full versions of iLife '09 and iWork.
If you can find the retail version of Leopard, even at full price, and then get the Leopard to Snow Leopard upgrade, you can save about US$60.00.
Dah•veed

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Answer 5

chipperz

Level 2

210 points

Aug 30, 2009 8:03 PM in response to kcorton

Go to hardcoremac.com. They have a version of OS X 10.5 for a decent price and then you will be able to buy the $29 OS X 10.6 upgrade. I did it and it works fine.

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Answer 6

kcorton Author

Level 1

0 points

Sep 3, 2009 7:58 PM in response to kcorton

I purchased a Family Pack of OS 10.5.6 and attempted to install on my iMac running 10.4.11. It told me that my volume would need to be erased. I do not want to erase, however. What may be causing the issue?

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Answer 7

kcorton Author

Level 1

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Sep 3, 2009 8:01 PM in response to kcorton

I purchased a family pack of OS 10.5.6 from Mac-Central and attempted to upgrade my iMac 10.4.11. The installer said my volume needed to be erased. I do not want to erase, however. Any suggestions as to why? I checked my volume using disk utilities and it says everything is fine. Any suggestions???

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Answer 8

Dah•veed

Level 9

64,723 points

Sep 3, 2009 8:05 PM in response to kcorton

Check in the new Snow Leopard forums. Folks with lots of experience, good & bad, hanging there at the moment.
Forum : Snow Leopard - Installation and Setup
http://discussions.apple.com/forum.jspa?forumID=1337
Dah•veed

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Answer 9

mac4ever

Level 2

299 points

Sep 3, 2009 8:06 PM in response to kcorton

Leopard uses a different partition mapping scheme (GUID). I think this is why you are required to reformat the disk.

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Answer 10

kcorton Author

Level 1

0 points

Sep 3, 2009 9:46 PM in response to kcorton

Just started updating my iBook G4 from Panther to Leopard and it is letting me do it as an upgrade...Why the problem with my iMac? Would having a Parallels partition on the drive, as well as a TechTools eDisk cause the problem?

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