[xubuntu-users] How to get Btrfs on 2nd partition of USB HDD to automount as read/write

[dg1727]

On Sun, 19 Aug 2012 15:45:21 -0400 dg1727 <dg1727 at hushmail.com> 
wrote:
>On Fri, 17 Aug 2012 15:07:06 -0400 dg1727 <dg1727 at hushmail.com> 
>wrote:
>>I have a user with an Xubuntu 12.04.1 laptop, 32-bit.  He needs 
>>to use a USB hard disk drive which has 2 partitions:  the 1st 
>>partition is NTFS and the 2nd partition is Btrfs.  
>>
>>When he plugs in the hard drive, both partitions auto-mount OK, 
>>except that the Btrfs partition automounts read-only.  That is, 
>>the permissions of the directories in /dev/media are drwx------ 
>>for the NTFS and dr-xr-xr-x for the Btrfs.  
>>
>>How can the OS be set up so that the Btrfs will automount 
>>read/write?  
>>
>>"uname -rv" reports:  
>>
>> 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:04:05 UTC 2012

The workaround and the future solution are documented in:  

http://www.spinics.net/lists/linux-btrfs/msg18520.html
http://www.spinics.net/lists/linux-btrfs/msg18531.html

-dg1727