I've found that after recent upgrade to ubuntu server my site has gone down, showing a message like:
"Your PHP installation appears to be missing the MySQL extension which is required by WordPress."
my scenario is:
[*]php should be already 5.4 FASTCGI as verified through the dreamhost webpanel;
[*]I've never made changes to php.ini file inside my installation folder of wordpress;
[*]wordpress should be up to date cause I've checked automatic update from dreamhost webpanel;
I sincerely don't know what I can do to put the site up and running again, I read the guide at
as you provided but I haven't find anything useful, otherwise I wouldn't write here.
hope someone from dreamhost support team read it and can help me in some ways,
the site is: