Solved

Disk Cloning

Posted on 2001-08-08
11
831 Views
Last Modified: 2008-02-26
I have a machine running unix which the hard drive crashed.  I have the data on another hard drive, but must clone the drive.  Does anyone know of any software to clone unix drives?
0
Comment
Question by:shageman
  • 5
  • 2
  • 2
  • +1
11 Comments
 
LVL 38

Expert Comment

by:yuzh
ID: 6366997
Hi shageman,

    Which version of UNIX are you running?

    I believe that you don't need the by a software to clone the HD (most
of the HD clone software on the market is not for UNIX anyway). IF you want to clone a UNIX disk, first you need to find an identical HD (same made, same model, same size). the use the UNIX "dd" command to do it.

   If you cann't find an identical HD, you can copy the contains of the data HD to a new.  eg mount the HDs on the same machine,  or use NFS to mount the data HD on different machine to copy it.


   Cheers!

yuzh
0
 
LVL 51

Expert Comment

by:ahoffmann
ID: 6367055
dd works always, independent of made, model, size
Never use NFS (or mount) to make a "identical copy", just dd.
0
 
LVL 38

Expert Comment

by:yuzh
ID: 6367564
What I mean is that in case you cann't find an indentical HD, you can use the backup command eg: cpio to copy the file systems accross to the new HD, don't use tar if you have to copy some like device files accross, but cpio can do the job for you.
0
 
LVL 1

Author Comment

by:shageman
ID: 6370319
Forgive my ignorance here....but is there a unix command similar to DOS scandisk??
0
 
LVL 38

Expert Comment

by:yuzh
ID: 6370849
In Solaris UNIX, you can use "format" command to do it. In SCO UNIX,
"badtrk" is the one to be used. You have not give us the info about you
OS.

But if you only want to check your file system, "fsck" command will do
it for you.
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 1

Author Comment

by:shageman
ID: 6370889
I am sorry, it is SCO unix....not sure which version
0
 
LVL 38

Expert Comment

by:yuzh
ID: 6371271
With SCO UNIX, you can boot up the system from FDs, and use "badtrk"
to ckeck your HD.
0
 

Accepted Solution

by:
NGrigoriev earned 50 total points
ID: 6444099
1. Connect your new hard drive to your working system
2. Partition your new hard drive as you want
3. Mount your new empty volumes somewhere.
4. Copy files  using tar, for example.

mount new-volume /mnt/export1
cd /export1
tar cpf - * | ( cd /mnt/export1 ; tar xpf - )

5. Install system boot loader. This is most difficult task because it depends on what kind of UNIX you have. In case of Linux or BSD it is simple.
0
 
LVL 38

Expert Comment

by:yuzh
ID: 6444620
Hi NGrigoriev,

   tar can not copy spcicial files like device files. The SCO version of cpio can copy any file on the harddisk to other harddisk or tape drive, so you comment is likely not
the answer for this question.
0
 

Expert Comment

by:NGrigoriev
ID: 6450012
Hi, yuzh

     Tar does copy device files. At least if they was created by mknod. I copied several Linux filesystems using tar. Also, it is
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

A metadevice consists of one or more devices (slices). It can be expanded by adding slices. Then, it can be grown to fill a larger space while the file system is in use. However, not all UNIX file systems (UFS) can be expanded this way. The conca…
I promised to write further about my project, and here I am.  First, I needed to setup the Primary Server.  You can read how in this article: Setup FreeBSD Server with full HDD encryption (http://www.experts-exchange.com/OS/Unix/BSD/FreeBSD/A_3660-S…
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.

910 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

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now