can't copy files to external HD on lion...

I have 3 USB external drives. Seagate and 2 WD's. And I can't copy to or from any. They were fine prior to Lion install. Haven't come up with anything that fixes. Sharing, rights access all seem correct and should enable copying. Haven't figured out the problem.

This I guess this will serve as a temporary fix for copying files to/from USB external hardrives.

kill and relauch Finder....below are 2 ways to do this:

1.) Kill the finder (pressing Option and click and hold on Finder icon (Dock) , then click on Relauch)

2.) Go to Apple icon (top left) and Force quit Finder

This worked for me and now I can copy to/from my 3 extenal HD's.

Hope this helps...

thanks for this, I have the smae problem sometimes Lion just pretends to copy files. Relaunching finder helped!

funny bug.

I just had a similar experience and I found out what it was. Don't know if it's the same for you but here goes:

Lion has a new "feature" in which the user's Library is hidden in Finder. I mean, VERY hidden so that you can't browse to it at all. The only way to see it is through the "Go" menu, holding down the Option key, or typing ~/Library.

Here's how it's relevant to the OP: I copied my Library to an external hard-drive and, like the OP, I thought that it had failed to copy. However it had copied OK - it's just that the "super-hidden" attribute had gone with it to the hard-drive so I could only see it by doing a goto /HardDrive/Library. Some tactic like that might solve the OP's issue...?