On Fri, Oct 31, 2014 at 12:16 PM, Peter Humphrey <pe...@prh.myzen.co.uk> wrote: > > My grub-0.99 lets me choose from four kernels and two or three run levels at > boot time, and grub-2 can't handle this yet, or it couldn't the last time I > checked. I don't suggest that everyone has a similar need, but at least in > some cases the old grub does still have a place.
I doubt that grub2-mkconfig can auto-generate configs with permutations on runlevels, but if you build a manual config for grub2 I can't see why this would not work. You're just changing your choice of kernel and kernel parameters. It certainly does let you pick from multiple kernels. Grub2-mkconfig also supports a recovery configuration for each kernel that can have different options, which might or might not meet your need. You could also create your own module for grub2-mkconfig which does whatever you want. Or just use manual config files. I was doing this at first with grub2. I ended up ditching it for the generic mkconfig script, since it plays well with make install on kernels and dracut. Before I used to make the config static and just name my kernels k/k1/k2 or some such, rotating through names as I updated. That works, but was a pain. The biggest issue I ran into with mkconfig so far was that it doesn't always handle mainline rc kernel sorting - you'll get an rc kernel sorted above the release version and therefore made the default. I did file a bug about that, so hopefully it will get fixed some day. -- Rich
