CentOS - Apr 2006 - Re: Re: backing up my system with dump (Chris Mauritz)

>>israel.garcia at cimex.com.cu wrote:
>>> I'm running CentOS 4.3 on Intel. I don't have any tape
device on my
>>> system for backup, but I have an entire disk (/dev/sdb) for backup
...
>>> my question is:
>>>
>>> How can I backup ALL my filesystems to some place of my backup hdd
>>> (dev/sdb) using dump/restore?
>>>
>>> I don't want to use tar.
>>>   
>>Let's say you have two disks.  There's the "system"
disk with the root
>>partition mounted as / and the "backup" disk mounted as
/backup.  If
you 
>>did this:
>>/sbin/dump -0u -f /backup/rootbackup /
>>you would wind up with a dump image of your root filesystem on your 
>>backup disk and it would be called "rootbackup".
>>That works for me.
Really good Chris, I'm dumping my filesystems NOW! :-), but a last
question:
How can I restore from this dump image?

Regards;
Israel
>>Cheers,





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End of CentOS Digest, Vol 15, Issue 18
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israel.garcia at cimex.com.cu wrote:
>>> israel.garcia at cimex.com.cu wrote:
>>>       
>>>> I'm running CentOS 4.3 on Intel. I don't have any tape
device on my
>>>> system for backup, but I have an entire disk (/dev/sdb) for
backup
>>>>         
> ...
>   
>>>> my question is:
>>>>
>>>> How can I backup ALL my filesystems to some place of my backup
hdd
>>>> (dev/sdb) using dump/restore?
>>>>
>>>> I don't want to use tar.
>>>>   
>>>>         
>
>   
>>> Let's say you have two disks.  There's the
"system" disk with the root
>>>       
>
>   
>>> partition mounted as / and the "backup" disk mounted as
/backup.  If
>>>       
> you 
>   
>>> did this:
>>>       
>
>   
>>> /sbin/dump -0u -f /backup/rootbackup /
>>>       
>
>   
>>> you would wind up with a dump image of your root filesystem on your
>>> backup disk and it would be called "rootbackup".
>>>       
>
>   
>>> That works for me.
>>>       
>
> Really good Chris, I'm dumping my filesystems NOW! :-), but a last
> question:
> How can I restore from this dump image?
>   
man restore.  8-)

It's been a while, but I think to interactively restore from an archive 
you would type something like:

restore -i name_of_your_archive_file

This will give you a restore prompt and you can interactively retrieve 
what you need from the archive.  There are also flags available with 
restore to pave over a virgin filesystem and recreate the dumped file 
system.  I hate to join the RTFM ranks, but restore can do a LOT of 
things in many different ways so it's worth reading the man page so you 
can figure out the best strategy for you when it comes time to restore 
files from a dump archive.

Cheers,