rsync to clone server A to server B concerns?

[Paul Ward]

That's what I was hoping for, I was going to ensure kudzu service is
running before hand.

As for the kernel I will have to check the version on server A against
the install discs to ensure they are the same.

Cheers for your reply


2009/6/4 Sam Varshavchik <mrsam at courier-mta.com>:
> Paul Ward writes:
>
>> Hi,
>>
>> I want to clone server A to server B using rsync.
>>
>> If server A is RHEL3 on a hardware mirror and I have a newer server B
>> that has new hardware and needs to be the same can I use rsync to copy
>> the OS and installed oracle installation?
>
> Yes, as long as the partition layout is more or less the same.
>
> rsync won't copy over the bootloader. After the rsync completes, use the
> installation CD to boot into rescue mode, chroot to /mnt/sysimage, then run
> /sbin/grub-install.
>
>> I am concerned if the server will work afterwards due to different
>> hardware although both servers are IBM, and other issues like grub,
>> should I avoid updating grub.
>
> As long as the hard drives have the same physical arrangement and
> partitioning, this'll work. Kudzu may go bonkers on the first boot, but it
> should figure things out. Note that if your newer hardware is not supported
> by RHEL3's older kernel, no rsync will help you. That's always a
> possibility.
>
>
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