I have a working Linux system (Centos 6.7) which I would like to clone to a bootable hard disk. The hard disk is also internal.
The purpose of the clone is for disaster recover as well as to allow me to test changes safely.
On the Mac, for example, I can easily clone the main disk using Carbon Copy Cloner, or Super Duper, and easily boot from the cloned partition when needed.
I’m not necessarily looking for a new tool to do this, as I suspect that the tools are already available in my system. However, if they’re not, then I’m happy to get such a tool.
I have read much about Clonezilla, but, as far as I understand:
- Clonezilla requires a larger destination drive — my backup drive is the same size (and, because of differences in hardware, may be a few bytes smaller). — It does not actually make the copy bootable
- It runs from a Live CD which is OK, but not practical if I want to do this on a regular basis.
It is my intention to create the clone, and possibly use
rsync to keep it up to date.
One other detail: I am running a Raid 1 array (but my clone should be a simple hard disk), and LVM.
Is there a simple tool or procedure to do the job? I don’t know whether the answer would be general or specific to the distribution.
To qualify the question, I guess that I don’t actually need to make a literal clone, but just a copy of everything.