Solved

Ufsdump over network

Posted on 2004-10-19
14
3,911 Views
Last Modified: 2013-12-16
Hi guys.

I'm trying to do a ufsdump of a partition over a network. This is what I have done so far:

--> on the machine where I'm getting the data from
share slice -->  vi /etc/dfs/dfstab
share -F nfs -d "opt" /opt
/etc/init.d/nfs.server start

then

--> on the machine I'm trying to dump to

mount /dev/dsk/c0t1d0s3 /opt2
mount 192.168.0.72:/opt /opt3

So far so good.  

--> Now i try to dump opt3 to opt2:
ufsdump 0f - /opt3 | (cd /opt2; ufsrestore xf -)

and i get the following:
 
 DUMP: `/opt3' is not on a locally mounted filesystem
  DUMP: The ENTIRE dump is aborted.
Volume is not in dump format

Please help!
0
Comment
Question by:Trigger_Hippie
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
  • 2
  • +4
14 Comments
 
LVL 13

Expert Comment

by:gripe
ID: 12352670
Are you trying to just move /opt from one machine to /opt2 on another machine? It would be easier and likely faster to just use the 'cp' utility to do this. What type of UNIX are you using?

On many types of UNIX, you can simply mount your directories as you have already done and on the machine you want to copy to, issue the following command:

cp -Rp /opt3/* /opt2

This will copy *recursively* all of the files in /opt3 to /opt2. It will reproduce (not follow) symlinks and will create directories as per normal. You can 'follow' symlinks as if they were actual directories/files by issuing '-r' instead of '-R' but this is likely not what you want (nor is it what ufsdump would do)

I suggest reading the man page for cp prior to issuing any commands just to verify that the behaviour is what you want. Or you can reply with your UNIX type and I'll try to help.
0
 
LVL 14

Expert Comment

by:chris_calabrese
ID: 12352829
As gripe aluded to.... What is the problem you are trying to solve?

If it is a one-time copy of the filesystem, then something like this will work best (cp actually has some issues with things like sym-links):

  (cd /opt3 && tar cf - .) | (cd /opt2 && tar xf -)

If it's keeping the two in sync, then you want something like rsync (http://samba.anu.edu.au/rsync/) possibly tunneled over SSH (www.openssh.org) if you have any care for security.

If it's doing backups, then you want to go to tape, CD-R, or DVD-R - not disk. If you don't have a tape drive on all the systems, you can do something like this
  ssh other-server ufsdump options, etc. > /dev/rmt/some-device
0
 
LVL 40

Accepted Solution

by:
jlevie earned 46 total points
ID: 12352992
The ufsdump must be done on the system that has the file system. You can write the results to an NFS mount point, which is the inverse of what you've attempted.
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 38

Assisted Solution

by:yuzh
yuzh earned 43 total points
ID: 12354085
You don't need to use NFS for ufsdump/restore, you can setup rsh (not secure, need
.rhosts file under root's home dir) or use ssh, eg:

ufsdump 0f - fs |rsh remotebox "cd /restoredir; ufsrestore rf -"

or:
ufsdump 0f - fs |ssh root@remotebox "cd /restoredir; ufsrestore rf -"
0
 

Author Comment

by:Trigger_Hippie
ID: 12358045
The O/S is Solaris 8.  

I guess what I should have pointed out is that I eventually want to copy the entire disk (all partitions) over including root to get a bootable copy.

0
 
LVL 14

Assisted Solution

by:chris_calabrese
chris_calabrese earned 43 total points
ID: 12358337
Umm, wouldn't it be easier to do this with JumpStart?
0
 
LVL 40

Expert Comment

by:jlevie
ID: 12362602
You can replicate this system over the network to a disk on another box, you just have to run ufsdump on this box and send the data to the other system. And then you'll need to make the result bootable with installboot.
0
 

Author Comment

by:Trigger_Hippie
ID: 12444052
"Umm, wouldn't it be easier to do this with JumpStart?"

I haven't used jumpstart before?  Where/how do i get started?
0
 
LVL 38

Assisted Solution

by:wesly_chen
wesly_chen earned 43 total points
ID: 13010684
Hi,

   Jumpstart is a method that provides a way to install the Solaris (8 or above) on groups of similar
systems automatically and identically. After you finishing the jumpstart configuration file, then you don't
even to type in any information such hostname, ip address, which package need to be installed. All are
done automatically (hands off).

   Here are some setup guide and Sun Blueprint for Jumpstart:
http://www.blacksheepnetworks.com/security/resources/jumpstart-sun.html
(BluePrint) Performing Network Installations Without a Local Boot Server:
http://www.sun.com/blueprints/0504/817-7288.pdf

If you have multiple similar hardware boxes and need to re-install Solaris frequently,
then Jumpstart is the one to save you time.

Wesly
0
 
LVL 40

Expert Comment

by:jlevie
ID: 13011070
Jumpstart is just a way of automating the installation of Solaris, and that presumes that you already know how this system was installed and configured. To some degree third party packages can be added as a part of a Jumpstart, and naturally patches can be applied. Of course if you know all of that you could manually install Solaris on another systen and set it up like this one.

It is worth the effort to set up Jumpstart only if you need to be able to semi-automatically install a number of machines with similar configurations. In my opinion it would be a waste of time and effort to do so for a single duplicate.

Using an NFS mount of the target of the ufsdump, or rsh (per yuzh's suggestion) is going to be the most efficient solution to duplicate a single machine. Actually, the fastest way is to attach the target disk to this system and use ufsdump/ufsrestore to replicate the system directly to the target disk.
0
 
LVL 16

Expert Comment

by:Hanno P.S.
ID: 13875091
Keep in mind that
a) ufsdump reads directly from the (local, raw) disk device
b) can write to a local tape or a remote tape (via network)

Locally attached tape device:
ufsdump 0f /dev/raw-disk /dev/tape

Tape device on antother machine (rsh access must be allowed):
ufsdump 0f /dev/raw-disk server:/dev/tape
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction Regular patching is part of a system administrator's tasks. However, many patches require that the system be in single-user mode before they can be installed. A cluster patch in particular can take quite a while to apply if the machine…
Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question