I have several installations of wordpress on my vps and I have a couple that add/update plugins with no problems.
When adding a new plugin I get the following progress messages:
Downloading install package from
Unpacking the package…
Installing the plugin…
Successfully installed the plugin Hello Dolly 1.6.
Activate Plugin | Return to Plugin Installer
However, on most of my WP installations the message stops at the first line:
Downloading install package from http://downloads.wordpress.org/plugin/hello-dolly.1.6.zip…
The plugin is in the plugin list when I check and all I need to do is activate it. Also, when updating a plugin it doesn't reactivate, so I have to manually do it myself. On a working installation the plugin is reactivated automatically.
I've tried cross referencing folder permissions with WP installations that work but I'm having no success.
If anyone could help, I would appreciate it, I find it very annoying and tedious when I have to update everything manually.