I have 300+ remote servers running sarge / 2.4 kernel and I would like to upgrade these servers to etch / 2.6 kernel.
All servers have relatively the same hardware, older systems have 40 or 250gb IDE hard drives and older 3ware RAID card, newer systems have 250GB SATA hard drives and a more recent 3ware RAID card.
What is the recommended way to upgrade these servers. Can this be automated or would I have to upgrade each individually?
Thanks in advance