I've fresh installation at the site.
I've downloaded the latest patch for preinstalled version @ 5.1(3g) - Upgrade from UCM 5.0.4 or higher@
when i'm trying to start update procedure,i see "mount failed" error at the publisher server.
Update from CD/DVD on the subscriber passes without any error.
Please,pay also yor attention to the attachments.
These errors i got in the publisher console.