based on having made pretty much every possible mistake there was to make in experimenting with the 2.5 kernel, some random thoughts for anyone else who wants to do the same, above and beyond the actual steps posted earlier: 1) start with a fairly minimal feature set, and just get it to boot. then start adding features little by little until you have everything you want, if you want to be cautious. keep a working 2.4 kernel around, just in case. 2) stay on top of the bk patches as they come out. even if you have no intention of actually rebooting with a new bk-patched kernel, it's worth grabbing each bk patch, patching and rebuilding to make sure there's no build problem, and running "make oldconfig" will let you see if new features have been added. 3) if you're seriously bored, play with make targets like # make allyesconfig # make allnoconfig # make allmodconfig type # make help to see the sorts of things you can do. 4) check out the linux-kernel archives at marc.10east.com. don't subscribe to the actual linux-kernel mailing list unless you're prepared for some serious traffic. 5) check out www.osdl.org/archive/cherry/stability for the stability tests on each new version that comes out. now that linus torvalds and andrew morton have joined OSDL, new versions of the 2.5 kernel are supposed to come out more frequently. what have i forgotten? rday -- Robert P. J. Day Eno River Technologies Unix, Linux and Open Source training Waterloo, Ontario www.enoriver.com