Hi Jeff,
> I'm very interested in this topic since I have been spending a lot of
> time developing my "shadowmountrsync" routines which attempt to
> automate the backup part of your approach outlined above. So far I
> have robustly implemented startup of shadows and backup of acls (using
> subinacl and/or getfacl).
Great to hear from you - I was going to mention your script in my
first post, as it's a fantastic contribution to the problem I'm trying
to solve. The funny thing is I spent the better part of a weekend
working out how it all works _before_ I found your script, but what
you've put together has been a good reference for me nonetheless.
I'm primarily trying to do this with rsync over ssh, so the details
are a little different, but the 'at' job schedule to work around the
passphrase ssh login problem was a very clever idea (that I had not
found elsewhere).
> 1. What is 'fileacl' and how is it better/worse than subinacl?
> (which seems to backup all the ACL info (vs. the limited getfacl
> capabilities)
Good question - it's a tool I found in 2007 when I last had a look at
doing more then file-level backups with backuppc.
http://www.gbordier.com/gbtools/fileacl.asp
I had not heard/seen of subinacl or getfacl until I looked at your
work (hint: I'm not a Windows admin.. :) )
I'm willing to use whatever works, and fileacl claims save/restore
acl's comprehensively.
I've tried both fileacl and subinacl with the same results.
I'm wondering what isn't restored by a file-level restore, permission
restore, and then a fixboot / fixmbr. Or whether it's something to do
with the change of 'hard disks' (in my case VMWare vmdk files). Or
whether the on-disk block location of some files is stored somewhere
and that breaks on the restore. Coming from a Linux background, I
don't know why it has to be so hard to understand how to perform a
full system recovery without forking out $$.. :)
> 2. What does the "ntbackup of systemstate" add?
> If I understand that better, I would be happy to add it as an
> additional option to shadowmountrsync.
Well, I don't know the details as it's all a little abstract, but
reading:
http://technet.microsoft.com/en-us/library/cc785306(WS.10).aspx
gives some hints on what it covers, and I'm just used to seeing it be
done with other backup tools. For some of it's components backed up
(e.g. AD), I think additional massaging is done on backup, and when
restored, additional unrolling/replaying of files onto the system
instead of just file-level recovery. But I could be way off there.
> Please keep me informed on your progress on getting bare-metal
> restores to work. I am very interested in getting this all working.
My major aim is to do a backup/restore out of band without recovering
a base-os installed. Barring that, I want to work out what the
minimum amount of work is required before I can restore from my
backuppc files / permission dump and have the system functioning as it
was at the time of backup.
I hope someone out there with the right Windows knowledge can provide
some additional answers to the questions we are asking.
Regards,
Chris Bennett
cgb
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