Date: Thu, 23 Apr 2009 23:38:40 +0200 From: Rick van der Zwet <info@rickvanderzwet.nl> To: freebsd-embedded@freebsd.org Subject: nanobsd image boot issues Message-ID: <5aaae08a0904231438v5b655056g8852dc11f1e83987@mail.gmail.com>
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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
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
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?
/Rick
--
http://rickvanderzwet.nl
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