On Apr 24, 2007, at 11:38 PM, Falk Sauer wrote:
> On Wednesday 25 April 2007 writes Ross Boylan:
>> Does anyone know of a tool/script that will remap one set of uid's
>> and
>> gid's to another? I.e., if sarah has id 1005 on the original system,
>> and I restore it to a system where sarah has id 1004, can I get
>> something that will rewrite the id's on the new system to 1004.
>
> You can use find for your opinion:
>
> find /path/to/your/restore/ -uid 1021 -exec chown newuser.newgroup
> {} \;
The problem with a naive find is that you may be trying to remap UIDs
where the old set and the new set have collisions, for exmaple:
UID 5 -> UID 7
UID 7 -> UID 5
In this case we need some way of knowing which files have already had
their ownerships changed.
One way is to combine the change with a move from one directory to
another.
Another is to create/touch a new temporary file, and use that file
with a negated "-cnewer" argument to find. That way find only returns
files which have not been changed since you made the tempfile.
("Changed" is updated on permission or file change, "modified" is
only for data change.)
touch /path/to/tempfile
find /path/to/your/restore/ -uid 1234 -not -cnewer '/path/to/
tempfile' -exec "chown newuser.newgroup {}"
> This is not a native restore problem, i mean this is only a admin
> job for the local operator.
I agree that this is an issue which isn't part of Bacula's core
functionality.
--
--Darien A. Hager
[EMAIL PROTECTED]
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