Hi Krishna, Please keep ML Cc'd On Fri, Apr 20, 2012 at 1:57 PM, er krishna <erkrishna@xxxxxxxxx> wrote: > Graeme, > > Thanks for the reply. > > On Fri, Apr 20, 2012 at 11:49 AM, Graeme Russ <graeme.russ@xxxxxxxxx> wrote: >> >> Hi Krishna, >> >> On Fri, Apr 20, 2012 at 1:45 PM, er krishna <erkrishna@xxxxxxxxx> wrote: >> > Hi All, >> > >> > Is it possible to boot the 64 bit machine through 32 bit compiled kernel >> > ? I >> >> Yes > > > How ? What are the exact steps ? I mean how I will compile the kernel (flags > and all) that will boot on 64 bit processor ? My problem is I have 64 bit > fc16 and Sandybridge 64 bit machine. I need to compile the kernel for 32 bit > with these setup and boot it. The steps you performed I believe will have built a 32-bit kernel >> > tried its compilation on fedora 16 64 bit and intel sandybridge 64 bit >> > with >> > following option: >> > >> > >> > $ make ARCH=i386 menuconfig >> > >> > $ make ARCH=i386 –j4 >> > >> > >> > but it failed to boot. Any suggestion if it can be done by any way. >> >> You cannot use a 32-bit kernel with 64-bit user-space >> > > Sorry, I didn't get you here. Do you mean to say that 64 bit application > won't work on 32 bit kernel. if its then its fine. Yes, that is what I mean't - If all you userspace (libraries, applications etc) are 64-bit then a 32-bit kernel cannot run them. You should have at least got a kernel panic that init could not be run By 'fine' you mean that your setup is fine and you tried to run the 32-bit kernel using 32-bit userspace? If so, there is obviously another problem. Regards, Graeme _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
