Date: Wed, 25 May 2011 09:00:24 GMT From: Pan Tsu <inyaoo@gmail.com> To: freebsd-fs@FreeBSD.org Subject: Re: kern/153804: boot from zfs kernel.old recovery undocumented/impossible Message-ID: <201105250900.p4P90OJO041088@freefall.freebsd.org>
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The following reply was made to PR kern/153804; it has been noted by GNATS. From: Pan Tsu <inyaoo@gmail.com> To: Andriy Gapon <avg@FreeBSD.org> Cc: bug-followup@FreeBSD.org, Nick Sayer <nsayer@kfu.com> Subject: Re: kern/153804: boot from zfs kernel.old recovery undocumented/impossible Date: Wed, 25 May 2011 12:52:38 +0400 Andriy Gapon <avg@FreeBSD.org> writes: > Try the following options: > > 1) > unload > set kernel=kernel.old > boot > > 2) > unload > load /boot/kernel.old/kernel > load -t /boot/zfs/zpool.cache /boot/zfs/zpool.cache zpool_cache_type can be anything. loader(8) unlike grub2 doesn't enforce type to be "/boot/zfs/zpool.cache". > boot Whatever happened to just typing following? boot kernel.old It assumes zpool.cache was already preloaded by failed attempt to boot default kernel. No need to `unload' the kernel, `boot' replaces it. > My expectation is that both should do what you want.
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