Date: Tue, 22 Apr 1997 18:44:23 -0700 From: Julian Elischer <julian@whistle.com> To: Jaye Mathisen <mrcpu@cdsnet.net> Cc: hackers@freebsd.org Subject: Re: additional boot stage? Message-ID: <335D6977.41C67EA6@whistle.com> References: <Pine.NEB.3.95.970422162149.28321Y-100000@mail.cdsnet.net>
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Jaye Mathisen wrote: > > Occasionally, it seems I'm having to work on machines that aren't close, > and need a bit of kernel tweaking now and then... > > Something I was was thinking would be useful is to have a kernel boot > path, or list of bootable kernels, or some mechanism such that if /kernel > doesn't boot, /kernel.bak boots or some fallback mechanism. > > I was thinking it could be handled if /kernel loaded and tracked the > bootedness or non-bootedness of the next kernel, it would be handy, w/o > having to write/rewrite the bootblocks, which makes me nervous. > > Or something. It would be nice. check out nextboot(8) it puts a list of bootable kernels in block 1 after the fdisk, and zero's out each one as it uses it.. needs the appropriate compile option in the bootblocks (mentionned in the man page)
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