Mac Update/External Hard Drive

Today I finally let my software updater do it's thing and it installed these 4 updates:
Quicktime (7.6.2)
Java for Mac OS X 10.4 Release 9 (1.0)
Itunes (8.2.0)
Security Update 2009-002 PowerPC (1.0)
I then rebooted and tried to plug in my Seagate External Hard Drive and I get a prompt that says:
DISK INSERTION
The disk you inserted was not readable by this computer.
What gives? It was working 10 minutes before... any ideas?
BiddyB

Hi BiddyB, and a warm welcome to the forums!
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Tiger Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
The usual reason why updates fail or mess things up, is if Permissions are not fixed before & after every update, with a reboot... you may get a partial update when the installer finds it doesn't have Permissions to change one obscure little part of the OS, leaving you with a mix of OS versions.
Some people get away without Repairing Permissions for years, some for only days.
If Permissions are wrong before applying an update, you could get mixed OS versions, if Directory is the slightest messed up, who knows!
If many Permission are repaired, or any Directory errors are found, you may need to re-apply some the latest/biggest updates.
May even need to do an Archive and Install if you have room on the HD, but saves all your files and gives a new OS...
http://docs.info.apple.com/article.html?artnum=107120
I only use Software Update to see what is needed, then get them for real via...
http://www.apple.com/support/downloads/
That way I can wait a week or so, check the forums for potential problems, and get Permissions & such in order before installing.
If all the above fails, then it appears to be time for a relatively painless Archive & Install, which gives you a new/old OS, but can preserve all your files, pics, music, settings, etc., as long as you have plenty of free disk space and no Disk corruption, and is relatively quick & painless...
http://docs.info.apple.com/article.html?artnum=107120
Just be sure to select Preserve Users & Settings.
Then see if Disk Utility can see/repair the external Hard Drive.

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http://help.apple.com/imovie/mac/10.0/#mov3fa25bae7
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brogand wrote:
Thanks for that, it was really helpful.
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My friend wanted some files to be transferred to his external hard drive from my Mac. As he is a Windows user, I guess his hard drive is formatted for Windows as well. As I plug in the hard disk in my Mac, I can't transfer the files. It says something like "the disk cannot be modified".
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Message was edited by: Dave Sawyer

Mac Update/External Hard Drive

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