dd if=/dev/sda of=/dev/sdb
if=input (source)
of=output (destination)
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Image copy linux.
Dear, i want to take back image Linux HDD to other disk which i can use. my opreating system with that HDD is not working. i need to create disaster recovery disk. and boot from that and take image. please guide i can do using Norton Ghost or Acronics. please guide which software will be the best. and please step to backup thanks. its very very urgent. our service is down.
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Answers
I did find more info on http://www.backuphowto.inf
Minimal linux knowledge is required really.. log into the system you wish to close and do 'fdisk -l' and take note of the hard drive detected. Then download a any sort of 'live cd' (such as Ubuntu, Gentoo, etc), open a terminal session and run 'fdisk -l' and take note of the new hard drive detected.
You should see a line similar to:
Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes
showing the device path and the size.
If the original drive was /dev/sda and the new drive was /dev/sdb, you would use:
dd if=/dev/sda of=/dev/sdb
as shown above.
If the drives shown are different, replace /dev/sda with the drive shown when you first did the 'fdisk -l' and the /dev/sdb with the drive shown when you did 'fdisk -l' the second time after connecting the new hard drive.
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by: SysExpertPosted on 2009-11-03 at 08:47:12ID: 25730856
depends on the Ghost version and the Linux partitions,especially if they are using Logical volumes ( LVM )
Ghost does not support this. You may be able to do a byte by byte image if the hard drives are the same size.
Not sure about Acronis, but you should read the documents.
In general a Linux dd could also be used
for Linux
the free
http://www.clonezilla.org/
is a good solution
I hope this helps !