Hi All
i m trying to sync 2 servers using rsync to replicate them.
i m following the steps as
1) attaching the hdd to the server(sdb) from where i to replicate
2) sync the /boot and / partition
opted for rsync as well as dd command

but the problem here i am getting is i am not able to boot the second server with the hdd ie sdb.

what could be the best way to do it.
i hve tried with the hd of same size it work fine.
but when i m trying to do for partition of smaller size it it failing
then current server is having 5 partition, but i only want to sync the 1 and 2 partition.
how it can be achieved

Hi jindalarpan,

It seems to me that you want to make two identical machines.
I think the first thing you should take a look at is the active partition and/or the boot loader (assuming that the entire installation consists of /boot and /).

Using dd should wor if the target drive has the same- or bigger size:
If the original disk is /dev/sdb than you need to reverse the input and output parameters.

There is however a great interactive backup-tool called mondoarchive. This tool makes system backups even while the systems is still running. Take a look at http://www.mondorescue.org/. If you're using the same hardware on both servers than this might be an easy way ;-).

This sadly won't help you with your partitioning problem.

Hope this helps.

Timvandijk

here the issue i m facing is the target is of smaller size and i want to reduce the size of system.

what is your distro?
what is the error?

basically i want to sync 2 hard disc of different size.
as the fist disk is have 5 partitions and second one is have only 3 partition.
but i only want to only sync first 3 partition of the first hard disk. out of which first is boot

hello anyone ?

with regards to not being able to boot the second server, try reinstalling grub.

you will need to boot from the rescue disk first tho.