[NMLUG] Linux GHOST?

[Bert Beaudin]

I have had good luck with ghost -IAL this keeps the boot records in tack
with my ext3 partitions.

Bert


-----Original Message-----
From: nmlug-bounces at nmlug.org [mailto:nmlug-bounces at nmlug.org] On Behalf
Of Dan Lark
Sent: Saturday, January 24, 2004 9:55 PM
To: New Mexico Linux Users Group Mail List
Subject: Re: [NMLUG] Linux GHOST?


On Sat, 24 Jan 2004, M. Warner Losh wrote:
> With ext3fs, I'd imagine there has to be some way you can do the same 
> thing as dump, but since I don't deal with Linux enough to know, I 
> can't be sure.
> 
> Warner

Yes, it is not only possible, but supported. This is an excerpt from the

restore man page:

       -r     Restore  (rebuild)  a file system. The target file system 
should
              be made pristine with mke2fs(8), mounted, and the user
cd'd 
into
              the  pristine file system before starting the restoration
of 
the
              initial level 0 backup. If the level  0  restores  
successfully,
              the  -r  flag  may  be used to restore any necessary 
incremental
              backups on top of the level 0. The -r flag precludes an 
interac-
              tive file extraction and can be detrimental to one's
health 
(not
              to mention the disk) if not used carefully. An example:

                     mke2fs /dev/sda1

                     mount /dev/sda1 /mnt

                     cd /mnt

                     restore rf /dev/st0

              Note that restore leaves a  file  restoresymtable  in  the

root
              directory   to  pass  information  between  incremental  
restore
              passes.  This file should be removed when the  last  
incremental
              has been restored.

              Restore,  in conjunction with mke2fs(8) and dump(8), may
be 
used
              to modify file system parameters such as size or block
size.


This does, howver, preclude you from creating the partition on the fly,
as 
you have to explicity partition/mk2efs the target.

As for a "Ghost" boot floppy replacement, I recall that there was/is a 
boot floppy specifically available for parted that has basically 
everything needed.

I do have two questions.

1. Does anyone know if extended attributes can be/are preserved with a 
dump/restore scenario or with parted? I would imagine 'dd' would take
care 
of this implicitly.

2. Could you use LVM (or whatever they're calling it today) in htis 
scenario, e.g. dd/tar/cp/etc. files over to a new medium and then 'grow'

the partition/space?

-dan
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