after read url and your parm suggest that you explicit more parameters like xon/xoff , 7 or 8 bits for serial console, see detailed about speed because in some cases equipment defaults are not the same kexec defaults. I am not sure about if is possible capture or redirect stderr to other place or to file. good tests, because i have make more than one hundred with on opticon arm920 and only when i used gammu for virtual simulation i gathered the error message and soon solved parameters problem in load / boot.!!!
2011/1/30 Eric Cooper <[email protected]> > I've been experimenting with using a stripped-down Linux kernel > instead of u-boot. I'm working with a Seagate DockStar, but the same > approach should work with the Sheevaplug or other variants. The idea > (which is not original -- you can find several other similar projects > via Google) is to use the power of the Linux networking, filesystem, > and USB stacks to load whatever kernel you want, and then the kexec > system call to warm-boot into it. > > Unfortunately, I've hit a brick wall: after loading a kernel (via > "kexec -l ...") and executing it ("kexec -e"), the new kernel hangs > during initialization when it tries to access various hardware > registers. These same hardware registers are accessed when the kernel > is booted via u-boot, so there's some bug here I haven't been able to > track down. See this thread for more details: > > > http://lists.infradead.org/pipermail/linux-arm-kernel/2011-January/039949.html > > If anyone can help me solve this, I'd be very grateful, and could move > on to the final step of flashing the minimal kernel and booting it > directly from the hardware. My early tests are promising: the minimal > kernel and initramfs are only 1.5MB, and it boots to a shell in about > 5 seconds. > > -- > Eric Cooper e c c @ c m u . e d u > > > -- > To UNSUBSCRIBE, email to [email protected] > with a subject of "unsubscribe". Trouble? Contact > [email protected] > Archive: http://lists.debian.org/20110130163917.GA2920@localhost > > -- gilberto dos santos alves (11) 8646-5049 são paulo - SP - Brasil
