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10.4: Reclaim drive space after an Archive and Install Install
Tiger only hintI just installed Tiger yesterday and choose the "Save the previous system" install (thus, not a regular upgrade). After doing this, you may want to "reclaim" some space used by the "Previous System" folder.

Some files which are kept and are most likely worthless and can be easily erased are the old swap files. In my case, they were using 1GB of drive space. Here's how to get rid of them in the Terminal:
$ cd /Previous\ Systems.localized/Previous\ System\ 1/private/var
$ rm -rf vm
You can probably also delete these without any fears:
$ rm -rf /Previous\ Systems.localized/Previous\ System\ 1/Library/Caches
$ rm -rf /Previous\ Systems.localized/Previous\ System\ 1/Library/Printers
In my case, I recovered 2.5GB doing all of these -- not too bad!
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10.4: Reclaim drive space after an Archive and Install | 5 comments | Create New Account
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10.4: Reclaim drive space after an Archive and Install
Authored by: mm2270 on Jun 01, '05 12:27:22PM

Correct me if I'm wrong, but wouldn't it make more sense to just confirm that your new system is functioning as you expect and that you don't need to pull over any files from the old "Previous System" folder (which I wouldn't recommend doing anyway) and just delete that entire previous system to reclaim space?

After each archive and install I've ever done, I wait about a week or two, then just delete the entire previous system. You can't boot from it, so there isn't much point in keeping on your hard drive.



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10.4: Reclaim drive space after an Archive and Install
Authored by: jaysoffian on Jun 01, '05 08:52:56PM

I disagree with this assertion. I've found myself going into Previous System months after an upgrade to dig something out that I hadn't used in a while and that hadn't been re-installed.

To each his own I guess, but drive space is cheap, so I keep it around. Per the original hint, old log files, swap files, caches, etc, aren't really worth keeping though.



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10.4: Reclaim drive space after an Archive and Install
Authored by: felix-fi on Jun 02, '05 04:50:01AM

Drive space is cheap... but my powerbook hd is almost always full ;-)

Even if you keep the whole previous system around for a while... there is no way you will ever need the swap files (even the OS deletes them upon reboot)...



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Don't do this!
Authored by: fds on Jun 01, '05 04:14:25PM
The hint's instructions fail to escape the spaces in the folder names and that can have some catastrophic consequences when used with

rm -rf
Type these commands from the root folder and you're going the whole of your System folder, permissions allowing, easily rendering your whole system unworkable.

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Don't do this!
Authored by: robg on Jun 01, '05 04:26:01PM

Ah dang it, that's my fault. Sorry, and nice catch. Fixed now.

-rob.



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