On 13 February 2010 16:04, Chris Stratton <cs07...@gmail.com> wrote: > Would it be possible to make a running kernel for an msm7201 phone > chain load and startup a test kernel? This would be fairly useless on > a phone that can fastboot, but a number of otherwise rooted phones > cant do that, making flash & crash the only current testing option. I > started looking through the reboot code, and it seems like > coordination with the baseband might be a major challenge. > > Alternatively, what about adding a grub-like menu very early in the > kernel startup process, to permit choosing an alternate kernel? Is it > possible to display something before the system is irrevocably > started? Or even not display, but simply read keystate to see what is > held down? > > I'm not asking someone to do these, more soliciting ideas of > difficulties I might run into trying to do them. >
I suppose there's the linux "kexec" feature which claims to allow rebooting into a new kernel from an existing running kernel without needing a bootloader... I'm guessing the option's probably still in the android source, but disabled; no idea how will it'll work though. Combine that with an initramfs to do the menu maybe? -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
