From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steve Simon <steve@quintile.net>
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Date: Sun, 20 Nov 2016 23:07:03 +0000
To: 9fans@9fans.net
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Subject: [9fans] Partition problems
Topicbox-Message-UUID: acdec810-ead9-11e9-9d60-3106f5b1d025

Hi,

I run a modified labs kernel with a few bits of 9atom to support my atom
Motherboard.

I have added an ssd to the mirrored disks in my plan9 server.
The initialisation of devfs fails without a helpful error message (something=
 I will sort out)

However the source of the problem seems to be boot/parts.c which fails to in=
stantiate the last partition on my disks. This causes devfs to give up rathe=
r than continuing to retry other partitions. My kernel then cannot find its v=
enti partition and dies with a panic.

If I boot using a different partition structure I can bring up the machine, a=
nd see that this one partition is indeed missing.

If I run disk/prep on the disk and rewrite the partition table unchanged, th=
e missing partition appears.

Anyone seen problems with the partition table generation code in boot/part.c=
?
If not I will keep digging but I thought it was worth asking.

-Steve