Hi, Using qemu I have been able to satisfy myself that Francesco Chiechi's patch to add mipsel to kexec-tools works. I have upported this patch and made various cosmetic changes too it, as per this series of patches. I intend to merge these patches. One thing that clearly needs further work is the handling of the command line passed to the second kernel. In preamble to his patch Francesco makes mention that his patch uses elf boot nodes to pass the command line. Inspection of the code reflects this. However in my limited understanding this only supports a subset of mipsel hardware. In particular, I notice that it does not use qemu. I wonder if ultimately kexec-tools will need a --machine or --boot-protocol parameter or something of that nature. -- Horms