o

42.1.20161207

v ? 2003, 2005 Chao-Hsiung Liao (j_h_liau@yahoo.com.tw)

v ? 2004 Craig Jeffares (cjeffares@novell.com)

v ? 2001 Joe Man (trmetal@yahoo.com.hk)

v ? 2007, 2008, 2009, 2010, 2011, 2012 Ray Chen (swyear@gmail.com)

v ? 2013, 2014, 2015, 2016 Ramax Lo (ramaxlo@gmail.com)

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By default, openSUSE 13.2 used a Btrfs partition layout that allowed for disk
space to become permanently occupied with stale, inaccessible contents after
the first system rollback was executed. This layout issue was fixed in openSUSE
Leap 42.1. However, the fix can only be applied to newly installed systems.

If you are upgrading from openSUSE 13.2, you cannot convert the file system to
the new layout, but you can reclaim the lost disk space.

Data Loss with Non-Standard Settings or No Rollbacks

The following procedure will only work properly on installations set up using
the default proposal created by the openSUSE 13.2 installer.

Additionally, you must have previously made a system rollback.

If you have set up your Btrfs file system with a non-standard configuration or
have not previously made a system rollback, executing the following procedure
can incur data loss.

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    umount /mnt

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    id=735404C



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