Date: Thu, 23 Apr 2009 16:24:27 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: info@rickvanderzwet.nl Cc: freebsd-embedded@freebsd.org Subject: Re: nanobsd image boot issues Message-ID: <20090423.162427.-1543901316.imp@bsdimp.com> In-Reply-To: <5aaae08a0904231438v5b655056g8852dc11f1e83987@mail.gmail.com> References: <5aaae08a0904231438v5b655056g8852dc11f1e83987@mail.gmail.com>
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In message: <5aaae08a0904231438v5b655056g8852dc11f1e83987@mail.gmail.com>
Rick van der Zwet <info@rickvanderzwet.nl> writes:
: Boot delay and fail issues on various hardware using nanobsd generated
: RELENG_7_1 images on a sandisk 2gb CF (SDCFH2-002G). For example while
: trying to run a image on a soekris net4521 (bios 1.33) it seems to
: take ages (up to a minute) to start booting. Same image supplied to a
: PC (intel Pentium 1 & award bios) using a CF->IDE converter does not
: seems to boot at all, neither does a net4801 (bios 1.33). Just seems
: trying to find a boot loader. The net4801 even bails out after a
: while. Output of fdisk of image list as follows:
:
: Disk: /dev/disk3 geometry: 992/64/63 [4001760 sectors]
: Signature: 0xAA55
: Starting Ending
: #: id cyl hd sec - cyl hd sec [ start - size]
: ------------------------------------------------------------------------
: *1: A5 0 1 1 - 491 15 63 [ 63 - 495873] FreeBSD
: 2: A5 492 1 1 - 983 15 63 [ 495999 - 495873] FreeBSD
: 3: A5 984 0 1 - 992 15 63 [ 991872 - 9072] FreeBSD
: 4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
:
This looks right...
: A reference pfSense image put on the same CF card is boot perfectly
: fine under the net4521 & PC (untested net4801):
:
: Disk: /dev/rdisk3 geometry: 992/64/63 [4001760 sectors]
: Signature: 0xAA55
: Starting Ending
: #: id cyl hd sec - cyl hd sec [ start - size]
: ------------------------------------------------------------------------
: 1: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
: 2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
: 3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
: *4: A5 0 0 1 - 1023 254 63 [ 0 - 50000] FreeBSD
This looks like the 'faked' DD geometry.
: Which makes me wonder about the sector start, why does nanobsd not
: start at sector 0, but uses sector 63 as a start instead. Could that
: be the explanation or is something else going on?
Because the first cylinder is reserved for the boot blocks.
Have you enabled packet mode for boot in boot0 with boot0cfg?
Warner
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