Unable to update/download modules

Yes I'm seeing this too:
http://ftp.drupal.org/files/projects/addressfield-7.x-1.0-beta2.tar.gz could not be saved to temporary://update-cache-77740e74/addressfield-7.x-1.0-beta2.tar.gz.
Downloading updates failed:
Failed to download addressfield from http://ftp.drupal.org/files/projects/addressfield-7.x-1.0-beta2.tar.gz

Do you have your temporary path defined at:

http://example.com/admin/config/media/file-system

Does your site status report give any errors or warning about your temporary path, or any other possibly related errors?

http://example.com/admin/reports/status

I have the same error message after updating from 7.0 to 7.8:
My temporary file path in ...admin/config/media/file-system is set to: tmp

After updating to 7.8 on a Virtual Server the tmp and the update-cache-xxxxxxx dirs are created by drupal and the permission for the update-cache-xxxxxxx dir is set to 755. When updating there is an error message:

http://ftp.drupal.org/files/projects/imce-7.x-1.4.tar.gz konnte nicht unter temporary://update-cache-xxxxxxx/imce-7.x-1.4.tar.gz gespeichert werden.

My provider told me that safemode ist turned on and that it cannot be turned off due to security reasons. Before updating to Drupal 7.8 the temporary dir worked without problems, with safemode-on.

Is there any solution to use 7.8 with safemode or do I have to downgrade to an older Drupal 7 Version?

Any ideas? Any help would be very much appreciated.

Me do have similar problem too.

I was able to perform module updates. But not now, after I upgraded to Drupal Core 7.8. The error messages are similar to those above:
... could not be saved to temporary: ...

I have checked the folder name, it typed correctly on configuration > file system > temporary directory. I even tried to change the folder permission to enable all (7, 7, 7) but not help.

A strange thing, after upgrading from 7.7 to 7.8, I was able to perform translation updates, success without any problem. So I think, this bug is not about the temporary folder permission, nor any issue from the webhosting. It should be the coding itself. I'm not a programmer, hope someone have programming knowledge can help checking the coding.

Hello all, I guess I found the temporary solution for this problem.

It seems this problem is cause by safemode directive and limitation of Drupal to handle it. For more information please visit these pages:
http://drupal.org/node/1267240
http://drupal.org/project/issues/drupal?text=safe+mode&status=All&versio...

Solution:
Simply turn off the safemode directive off in php.ini

Step by Step Explanation:
1. You need to have php.ini file. If don't, ask your webhost if you're allowed to have it.
2. Set your website to maintenance mode.
3. Backup your php.ini.
4. Edit the php.ini and set safemode to off.
5. Save/upload the 'edited' php.ini file to your website.
6. Make sure the php.ini file permission is 755.
7. Goto Report section and perform the module updates.
8. Fix if there still any issue reported.
9. Quit the maintenance mode.
10. Have a cup of coffee and relax ;-)

Strange thing:
After turn safemode off, I realized it's been reported that "CKEditor was not found at sites/all/modules/ckeditor/ckeditor". So, I uploaded the module following the instruction. Strange, as far as I remember, I'd already uploaded the module to the specified location, and CKEditor was working correctly before.

Another strange thing:
If I'm not wrong, Drupal won't able to install if safemode is on. I guess, my provider had ever updated the php.ini and changed the safemode to become on without noticing me.

So far, everything is working fine on my website. Please do necessary backup before you try this solution.

I wish it were that easy in my case. Safe mode is off and has always been off, and I am still seeing this error. Double and triple checked permissions of temporary directory too.

Same error here. Any update?