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Operating Systems Linux Moving Whole OS Centos Server Post 302586307 by admin_xor on Saturday 31st of December 2011 12:15:01 PM
Old 12-31-2011
Well you need to have physical access to the hard drive if you follow the steps I am going to advice you. Is it possible for you? If yes, then add the hard drive (of course you have to shutdown the running CentOS server) to another Linux box and issue the following command:

Code:
dd if=/dev/sdb of=/dev/sdc

Here /dev/sdb is the hard drive to be cloned and /dev/sdc id the new hard drive. The drive name may change depending on the availability of hard drives. Be sure to check if the OS is working well with the new hard disc.

NOTE: I have not tested anything like this with dd command. But as per the logic, it will copy the partition table too. So you will have lots of unused space on the new disk and this free space might be detected. I would not go for a hard disk cloning by any chance.

But if you really want to have a flaw less migration of whole OS while it's running, you would need to use a measure like P2V and V2P (physical to virtual and virtual to physical) migration solutions from the virtualization software vendors like VMware.
 

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monthly(8)						      System Manager's Manual							monthly(8)

NAME
monthly - httpd log rotation for wwwstat SYNOPSIS
monthly DESCRIPTION
THIS PROGRAM MUST ONLY BE RUN ONCE PER MONTH! DURING THE FIRST WEEK It assumes a lot, like that you use wwwstat and archive your logfiles once per month. You will need to configure it for your server before it can be used. Reads the logfile (assumed to contain more than one month's worth of WWW common logfile entries) and moves the prior month's entries into a separate file. The new file is created on TMPDIR (to avoid filling up the disk), compressed using gzip, and then moved to the archive directory. The program also restarts the httpd server. SEE ALSO
crontab(1), httpd(1m), perl(1), wwwstat(1), splitlog(1), wwwerrs(8), oldlog2new(8) More info and the latest version of monthly can be obtained from http://www.ics.uci.edu/pub/websoft/wwwstat/ ftp://www.ics.uci.edu/pub/websoft/wwwstat/ If you have any suggestions, bug reports, fixes, or enhancements, please join the <wwwstat-users@ics.uci.edu> mailing list by sending e- mail with "subscribe" in the subject of the message to the request address <wwwstat-users-request@ics.uci.edu>. The list is archived at the above address. 18 November 2004 monthly(8)
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