Depending on your current OS version have you tried the Update Manager? System Menu -> Administration -> Update Manager. Wait for it to search your repositories and find any updates. Click "Update All". On the window that'll pop up click "Details". You might find some useful information and errors there.
An alternative would be to update via the command line as this tends to report more useful errors. If you wanted to go to build 105 from the /dev repository try this: # pfexec pkg set-authority -O http://pkg.opensolaris.org/dev opensolaris.org-Dev # pfexec pkg set-authority -P opensolaris.org-Dev # pfexec pkg authority AUTHORITY URL Blastwave http://blastwave.network.com:10000/ opensolaris.org-Contrib http://pkg.opensolaris.org/contrib/ opensolaris.org-Dev (preferred) http://pkg.opensolaris.org/dev/ opensolaris.org http://pkg.opensolaris.org:80/ extra https://pkg.sun.com/opensolaris/extra/ # pfexec pkg refresh # pfexec pkg image-update If you need more help it would be useful to provide the following: Q: What OS are you currently running (uname -a) Q: What repositories do you have configured? (pfexec pkg authority) -- This message posted from opensolaris.org