[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:  nacin      
     Type:  defect (bug)  |      Status:  accepted   
 Priority:  high          |   Milestone:  3.0        
Component:  Multisite     |     Version:  3.0        
 Severity:  blocker       |    Keywords:  needs-patch
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Comment(by wpmuguru):

 Replying to [comment:7 gazouteast]:
 > Blocking sub-directory network conversions for hosting root directory
 existing installs will effectively block those sites from upgrading to
 multi-blog.  A workaround needs identified and supplied.
 >
 >
 You can add a simple plugin to override the block: hook the
 allow_folder_install filter and return a true. See [14513].

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Ticket URL: <http://core.trac.wordpress.org/ticket/12931#comment:9>
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