Much the same as Bug 13485:
https://bugs-archive.lyrion.org/show_bug.cgi?id=13485

but on Fedora 11. SBS r28198 worked ok (from the "squeezebox" folders), the (yum) upgrade to r28225 broke something today:

"service squeezeboxserver status" returns:
squeezeboxserver dead but subsys locked

"cat /var/log/squeezeboxserver/server.log" returns:
[09-08-20 12:00:43.3222] main::init (318) Starting Squeezebox Server (v7.4, r28198, Tue Aug 18 04:01:34 PDT 2009) perl 5.010000
[09-08-20 12:01:18.5425] Slim::Utils::MySQLHelper::createSystemTables (501) FATAL: Couldn't connect to database: [Can't connect to local MySQL server through socket '/var/lib/squeezeboxserver/cache/squeezebox-mysql.sock' (2)]

(watch r28198 shown, even if upgraded to 28225)

"service squeezeboxserver start" returns:
Starting Squeezebox Server: The following modules failed to load: EV XML::Parser::Expat JSON::XS Digest::SHA1 YAML::Syck GD Sub::Name

To download and compile them, please run: /usr/share/squeezebox/Bin/build-perl-modules.pl EV XML::Parser::Expat JSON::XS Digest::SHA1 YAML::Syck GD Sub::Name

Exiting..
                                                           [  OK  ]

I also suspect some folder name problems (referring to old "squeezebox" folder names instead of "squeezeboxserver").