Duncan posted on Thu, 27 Jun 2013 18:53:08 +0000 as excerpted: > But unfortunately, I've not actually tried the noinitrd kernel > commandline option, so I can't VERIFY that it works here, with my now > builtin initramfs. I'll have to reboot to try that, and will try to get > back to you on that. (Note to self. Test the root=LABEL with > initramfs-less boot too, while I'm at it.)
I couldn't get the noinitrd option to work here either, on builtin initramfs. Not too big a deal tho because as I think you (Mark, grandparent poster) suggested, it's always possible to rebuild a new kernel without the initramfs built-in. And if a kernel fails with its builtin for some reason, there's still the previous kernels with their known working builtins. So just as I can always boot a backup kernel when a new kernel fails, I can always boot a backup kernel when the builtin initramfs fails. Which of course means I didn't try the root=LABEL without an initramfs. But one other option I DID try... rdinit= . This parameter is similar to the init= parameter, but for the initr*. It is thus possible to, for instance, do something like rdinit=/bin/bash (assuming that's the shell available in your initr*), and get a direct initrd shell, instead of the script that /bin/init usually is in the initr*. Then in that shell you can do whatever manual thing you want, and possibly finish up with an exec /bin/init or whatever, to run the normal rdinit script. Of course another option would be to setup multiple scripts in the initr*, each of which could be run as the rdinit replacement, but doing different things. It would then obviously be possible to have one of those scripts do something else entirely, whether that be mounting a different root, or running a memory checker, or starting a game (either in the initr* itself or mounting a different root to do it), or... You could then set rdinit= in the kernel commandline to select the replacement rdinit script you wanted. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman
