[ale] Clone live system?

[Lnx Gnome]

I've used mondorescue years ago (many many years ago) and found it very
useful.  Don't recall any issues with multiple mount points.

On Sat, Jul 17, 2021 at 9:53 AM Raj Wurttemberg via Ale <ale at ale.org> wrote:

>
> Now that COVID is slowly going away, some of our customers are now looking
> to do some OS upgrades, mostly RHEL 6 to RHEL 8 and SuSE 12 to SuSE 15.  We
> have been using Relax and Recover (ReaR) (
> https://access.redhat.com/solutions/2115051) which dumps the live system
> to a bootable ISO. No outage is required.
>
> We take the ISO, boot it on a temp server, upgrade the OS there and on
> upgrade day, reverse the process on the day that we get an outage from the
> customer. The ReaR process works ok, but if any of the file systems are
> separated like /usr, or, /var, etc...  like you would normally find on a
> system, ReaR runs into difficulties.
>
> I did some Google-ing for other tools that can create a live clone of a
> server. I did find two tools that look promising...
>
> - doClone : http://doclone.nongnu.org/
> - MondoRescue : http://www.mondorescue.org/
>
> Besides 'dd' I was curious what live cloning software you all have tried.
>
> /Raj W.
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