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Apple Computing Products:
macOS - Desktop Hardware
migration
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<blockquote data-quote="MacInWin" data-source="post: 1782857" data-attributes="member: 396914"><p>Welcome to the forum. I need to tell you that the owners of this site plan to close it down permanently some time soon. Read the two links in my sig for the details and for how to stay in touch with the folks who volunteer here.</p><p></p><p>The OS on the external won't interfere with running programs that are on it, but I would recommend that you just go ahead and migrate the data on it to the new machine. If you have NOT gotten the new one yet, when you fire it up at the first use, it will offer to migrate data. Take that opportunity and point to the drive (You'll need to have it ready to connect). Or, if all the programs you want are on the TM backup, you can point to that, too. Let it do the migration and when it is done you will have on the new machine the exact same programs and data that you had on the old one, as long as the applications meet the 64-bit requirement of the new OS. Whether those older versions will run will depend on the individual application, they may need updating. </p><p></p><p>The TM question is a bit more tricky. Generally, when TM runs it creates a folder on the designated backup drive called "backups.backupdb" and in that folder is a folder with the computer name. Within those named folders are the dated folders for the backups of those machines. For example, I have a MBP named "MBP17" and another named "MBP15" and in the backups.backupdb folder there are two folders with those names. Within those individual folders are the backups of MBP17 and MBP15. But I didn't let TM "inherit" the backup, I just used the migration from the older one and then started the newer. Eventually I will delete the MBP17 backups when I fully retire the MBP17. </p><p></p><p>Does that help?</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1782857, member: 396914"] Welcome to the forum. I need to tell you that the owners of this site plan to close it down permanently some time soon. Read the two links in my sig for the details and for how to stay in touch with the folks who volunteer here. The OS on the external won't interfere with running programs that are on it, but I would recommend that you just go ahead and migrate the data on it to the new machine. If you have NOT gotten the new one yet, when you fire it up at the first use, it will offer to migrate data. Take that opportunity and point to the drive (You'll need to have it ready to connect). Or, if all the programs you want are on the TM backup, you can point to that, too. Let it do the migration and when it is done you will have on the new machine the exact same programs and data that you had on the old one, as long as the applications meet the 64-bit requirement of the new OS. Whether those older versions will run will depend on the individual application, they may need updating. The TM question is a bit more tricky. Generally, when TM runs it creates a folder on the designated backup drive called "backups.backupdb" and in that folder is a folder with the computer name. Within those named folders are the dated folders for the backups of those machines. For example, I have a MBP named "MBP17" and another named "MBP15" and in the backups.backupdb folder there are two folders with those names. Within those individual folders are the backups of MBP17 and MBP15. But I didn't let TM "inherit" the backup, I just used the migration from the older one and then started the newer. Eventually I will delete the MBP17 backups when I fully retire the MBP17. Does that help? [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
migration
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