Bacula-users

Re: [Bacula-users] Inconsistent use of checksums in ancient 3.0.3 version

2016-05-10 03:07:52
Subject: Re: [Bacula-users] Inconsistent use of checksums in ancient 3.0.3 version
From: Kern Sibbald <kern AT sibbald DOT com>
To: Davin Church <davinchurch AT gmail DOT com>, bacula-users AT lists.sourceforge DOT net
Date: Tue, 10 May 2016 09:06:48 +0200
Hello,

First you are running a *very* old Bacula.  It is so old that I really 
have no idea what features it did and did not have.  The checksum field 
was not implemented in the beginning, so it is possible that version 
3.0.x only had a partial implementation.  In addition, whether or not a 
checksum is computed depends on several things:

1. If the user has not explicitly requested it (possibly set by default) 
in the FileSet, there will be no checksum.
2. There is no checksum for links (as opposed to files).
3. There is no checksum for directory entries.

Since your version of Bacula is so old, if you do decide to upgrade, I 
would recommend that you save a copy of your Bacula installation 
including the database in case of some crazy disaster, then 
re-initialize the database and install a completely new 7.4.x version of 
Bacula.

Best regards,
Kern

On 05/10/2016 03:02 AM, Davin Church wrote:
> For years I've been using the ancient 3.0.3 version of Bacula, but
> I'm now having computer problems and I want to verify my current
> files' MD5 checksums against the database.  However, when I look in
> the database's File.MD5 column, I find that some entries have
> reasonable-looking base64-encoded checksums but many just have
> "0".  I see no particular pattern to when checksums do or don't appear.
>
> Why would some File entries have checksums and some not?  Does anyone
> know of a bug in that old system that caused some checksums to be missing?
>
>
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------------------------------------------------------------------------------
Mobile security can be enabling, not merely restricting. Employees who
bring their own devices (BYOD) to work are irked by the imposition of MDM
restrictions. Mobile Device Manager Plus allows you to control only the
apps on BYO-devices by containerizing them, leaving personal data untouched!
https://ad.doubleclick.net/ddm/clk/304595813;131938128;j
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