I'm going to be doing a server upgrade later today. From 2007-era to 2011-era equipment. But, hey, it's only costing me $50 (assuming no surprises that require me to need something else) to double my CPU power and RAM.

Fortunately, I found myself a new place to clone, recently, so that if if things go very wrong, I'll be able to say so.

I've been told that after I swap out the motherboard, my Linux install should still boot right up (both old and new are Intel processors). I'm hoping the fact that I'm using mdadm to mirror my boot drive doesn't complicate matters. If someone knows anything about this, specifically, speak up. I'll be checking back before I begin.
I have done many similar upgrades. My experiece is that they each come with their own particular challanges unless you are having a lucky day and everything just works right when you put it all back together and turn the power switch on....I have had it happen a few times.
When that happens it is such a nice feeling.
Welcome back ;)
mdadm says it has a raid1 with 2 working drives. I have 0 bytes of swap used (something I have never seen before!)

Happy dance!

The only downside I see, or rather hear, is that the cpu fan is louder then my previous one. Which reminds me -- now that it has been running for a while, I should check the temp...
Linux flagship Munich's U-turn: Install Windows 10 everywhere by end of 2020 | ZDNet

A meeting next week looks likely to spell the end of Munich's Linux desktop experiment and a return to Windows for the city's staff.
After a day's work yesterday (while being distracted by Trump news from across the room), I got my new email server online (the one I had already spent hours and hours preparing for this big switch-over). Another hour today got webmail and dkim working.

I am SO glad I didn't try this during the week.
As a measure of how long I've been working towards this, I decided to do this before the annual maintenance subscription on my previous server came due. Last week, I got a notice that my renewal was overdue by 165 days.
Once we migrate my wife's mail over, I'll actually be able to shut down my Windows server when I'm not using it for the first time in 15 years. I guess I can also stop calling it a "server".

And, of course, "my windows server" has been a series of different computers over the years and there have been power outages and other short-term interruptions. But, you get the idea.
At some point, I bought a copy of Server 2003 at the employee discount price from someone I knew who worked for MS. I used that until I set up RedMatrix, which had some issues with 2003. When I built a new machine, I put Win7 on it, and have been running a pair of Win7 machines until a few months ago when I moved all my Windows apps to the "server" and installed Linux Mint on the other. Since then, I've been slowly migrating the server stuff over.
Dirty COW explained: Get a moooo-ve on and patch Linux root hole


Widespread flaw can be easily exploited to hijack PCs, servers, gizmos, phones