From mboxrd@z Thu Jan  1 00:00:00 1970
From: arisawa <arisawa@ar.aichi-u.ac.jp>
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Message-Id: <CE25F865-3A10-4B55-919C-36C79258C37C@ar.aichi-u.ac.jp>
Date: Thu, 17 Apr 2014 16:30:06 +0900
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: [9fans] 9fat format
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Hello,

It is curious for me that if 9fat is formatted by disk/format of 9front,
then 9atom fails in boot with the error message
MBR...PBS2...Bad format or I/O errors
(or PBS1)
In making 9fat, I applied 9atom=E2=80=99s pbslba, 9load, etc except =
disk/format:
disk/format -b pbslba -d -r 2 /dev/sdC0/9fat 9load 9pc*f  plan9.ini

I guess PBS2 claims that format of the allocation table is wrong
because if the 9fat is formatted by disk/format of 9atom
then 9atom can boot up.

term% xd -c /dev/sdC0/9fat # formatted using 9front
...
0000400  f8 ff ff ff 03 00 04 00 05 00 06 00 07 00 \b 00
0000410  \t 00 \n 00 0b 00 0c 00 \r 00 0e 00 0f 00 10 00
0000420  11 00 12 00 13 00 14 00 15 00 16 00 17 00 18 00
0000430  19 00 1a 00 1b 00 1c 00 1d 00 1e 00 1f 00    00
0000440   ! 00  " 00  # 00  $ 00  % 00  & 00  ' 00  ( 00
0000450   ) 00  * 00  + 00  , 00  - 00  . 00  / 00  0 00

Kenji Arisawa