Marc Chamberlin composed on 2023-01-10 13:12 (UTC-0800):
Hi - I am about to embark on a new adventure and am going to install/upgrade a new motherboard, with new processor, on-board graphics, and memory. (The old one is about 15 years old, dating back to the Pentium 2 core processor days.) I want to keep my OpenSuSE 15.4 x64 system and all the custom application configurations as is.
The general rule is no problems if the new motherboard is old enough. That translates roughly into 6-12 months newer OS release than hardware introduction date. That translates on 15.4 roughly into no problems for sockets LGA1200 & LGA4189 (Comet Lake, Cooper Lake, Ice Lake & Rocket Lake 4XX/5XX chipset) motherboards, possible problems for sockets LGA1700 & LGA4677 (Alder Lake 6XX chipset) motherboards, and probable problems for Raptor Lake (1700/4677 with 2022 CPUs/7XX chipsets). For Alder Lake you may need a BP kernel (from build service same kernel version TW and/or 15.5 is using) for everything to work. Without one, you may need to use nomodeset to enable booting at all, and Intel X graphics may have limitations or totally fail, especially if you have done any manual X configuration. Intel CPUs with on-chip GPU support 3 displays on motherboards providing that many outputs. My Rocket Lake has one DP and two HDMI. If currently XF86-video-intel is installed, removing it first could be a good idea, as it's generally disfavored for recent Intel graphics. You also may need newer firmware for networking, more likely for wireless than for wired. Basically, try booting your old HDD or SSD on the new motherboard, and see what happens. If you don't reach the login screen you should try again by striking the E key at the Grub menu to append plymouth=no and remove splash=silent and quiet on the end of the linu line to enable boot messages to look for clues what is happening or not. Otherwise successfully booted you'll need to modify network settings for the changed MAC addresses, and audio may need reconfiguration, but otherwise you might have a well working installation. Linux is really good with hardware switches when limited to hardware it knows about. Once you know what's needed, you'll want a fresh installation to the NVME you'll want to be using to enjoy maximum available storage performance. You could clone from the old HDD or SSD to the NVME, but I suggest you don't, to facilitate automatic use of optimal settings for the faster new environment. Logged in as root you can copy your homedir on the old disk to the new NVME location to preserve personal settings. -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata