undo rm deleteing /etc very urgent

[issa rabba']

I forget to tell you that I lost the telnet connectio to the server, and I
just have ftp connection now :(


-----Original Message-----
From: fedora-list-bounces at redhat.com [mailto:fedora-list-bounces at redhat.com]
On Behalf Of issa rabba'
Sent: Saturday, May 08, 2004 11:58 AM
To: 'For users of Fedora Core releases'
Subject: RE: undo rm deleteing /etc very urgent

Dear:

Thanks for you replay, I want to ask if I can copy /etc directory from
another server has the same FC configuration and applications?

Regards

-----Original Message-----
From: fedora-list-bounces at redhat.com [mailto:fedora-list-bounces at redhat.com]
On Behalf Of Jeremy Brown
Sent: Saturday, May 08, 2004 10:31 AM
To: For users of Fedora Core releases
Subject: Re: undo rm deleteing /etc very urgent

issa rabba' wrote:

>Dear all:
>
>Please I need help, by mistake I delete /etc directory and I don't how can
I
>undo deleting /etc, I still has connection to the server, please if any one
>can help me....
>
>Note: I don't have backup 4 /etc direcoty
>  
>
I'll go ahead and respond to your post with my very generic and 
unhelpful response, since you're probably on a time constraint and no 
one else seems to be answering (probably most are asleep).

My understanding is that when you delete files on most Linux 
filesystems, they aren't actually deleted, just unlinked.  It's possible 
to restore some or all of these files by restoring only the links (a 
semi-trivial process, maybe).  But once you start writing data back to 
the drive, there's probably little or no guarantee that you won't 
overwrite some or all of the space that /etc occupied.  So my first 
suggestion would be to try to find an undelete utility for whatever 
filesystem /etc was stored on.  After a quick google I found this one 
for ext2:

http://twerner.debian.net/

I make no claims as to whether or not this utility will work.  I've 
never used it before.

If you use reiserfs or some other filesystem, you'd need to google and 
find a different utility (assuming one exists for your FS of choice).

My other suggestion is to do what I did in the sole situation where I 
clobbered the /etc directory of a major production machine (by 
accidentally running "etc-update" on a Gentoo box I was supposed to help 
administer).  And that is to grab the FC install CDs, and install and 
configure as quickly as possible as you can on an alternative machine.  
Most processes only read configuration files in /etc on startup, so your 
machine with trashed /etc might even be able to stay alive while you get 
another one together.  It's not a pretty solution, but it'll hopefully 
minimize the damage done.

Hope this helps.

Jeremy


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