[wp-trac] [WordPress Trac] #12931: Upgrading a Single Site install to MultiSite Install with Subdirs is not safe

[WordPress Trac]

#12931: Upgrading a Single Site install to MultiSite Install with Subdirs is not
safe
--------------------------+-------------------------------------------------
 Reporter:  nacin         |       Owner:             
     Type:  defect (bug)  |      Status:  new        
 Priority:  high          |   Milestone:  3.0        
Component:  Multisite     |     Version:  3.0        
 Severity:  blocker       |    Keywords:  needs-patch
--------------------------+-------------------------------------------------

Comment(by westi):

 Plan from dev chat:

 {{{
 westi: I would go for sticking with the /blog for now
 westi: Blocking / Strongly recommending against (at a UI level) subdir
 conversion for existing sites
 westi: Improve in 3.1
 }}}

 Solution Must (Some test cases ;-) ):
  * Support upgrade from existing subdir mu installs
  * Support conversion to subdir multisite for a new 3.0 install
  * Block conversion to subdir multisite for a pre 3.0 single site install
 which is upgraded.

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Ticket URL: <http://core.trac.wordpress.org/ticket/12931#comment:1>
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