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Add an entry to UPDATING for r322297 which restores the ability

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of fsck to automatically find alternate superblocks when the
standard one is trashed or unavailable.

MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D11589
This commit is contained in:
Kirk McKusick 2017-08-09 05:21:57 +00:00
parent 77b63aa0fc
commit 2f401b0a4b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=322298
1 changed files with 13 additions and 0 deletions
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13
UPDATING
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@ -51,6 +51,19 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.x IS SLOW:
****************************** SPECIAL WARNING: ******************************
20170808:
Since the switch to GPT disk labels, fsck for UFS/FFS has been
unable to automatically find alternate superblocks. As of r322297,
the information needed to find alternate superblocks has been
moved to the end of the area reserved for the boot block.
Filesystems created with a newfs of this vintage or later
will create the recovery information. If you have a filesystem
created prior to this change and wish to have a recovery block
created for your filesystem, you can do so by running fsck in
forground mode (i.e., do not use the -p or -y options). As it
starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
to which you should answer yes.
20170728:
As of r321665, an NFSv4 server configuration that services
Kerberos mounts or clients that do not support the uid/gid in