Re: Kernel format issues?

[Vivek Goyal <vgoyal@xxxxxxxxxx>]

On Fri, Mar 02, 2007 at 02:29:42PM -0800, Greg Kurtzer wrote:
> On testing of RHEL5 beta with Perceus (uses kexec), people are having  
> problems with the kexec. I can't replicate locally but here is the  
> info that I got:
> 
> # kexec --initrd=/vnfs.img --force --append="masterip=192.168.1.254  
> console=ttyS0,115200 noht nousb ramdisk_blocksize=1024 noapic" /vmlinuz
> Ramdisks not supported with generic elf arguments
> # file /vmlinuz
> vmlinuz: ELF 64-bit LSB shared object, AMD x86-64, version 1, stripped
> 
> Red Hat says this:
> 
> The reason that the file shows up this way is because the RHEL5  
> kernel is now relocatable.  Relocatable kernels are required for use  
> with the kdump / kexec facility.  Kdump, of course, will be replacing  
> diskdump and netdump for capturing vmcore files after a crash.
> 
> Has anyone come across this yet or have ideas for a solution?

Also pass --args-linux option on kexec command line. In RHEL5 kernels,
an ELF header has been appened to relocatable bzImage and kexec as a
boot-loader treats it as an ELF file.

Thanks
Vivek
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