01-16-2013
The first partition table(s) has the correct - whatever this means - standard structure as introduced, I think, by Microsoft (?) centuries ago. Which is boot sector with partition entries, one of which points to a chain of partition tables each consisting of one entry and a link entry.
I've spent ages fiddling around with non-standard structures in extended partitions without any luck, esp. when it comes to coexistence of several OSs on the same disk.
On the other hand, linux should at least recognize the partition entries in the boot sector of your experiment. Mysterious. Not sure what the zero disk identifier does.
Did you try to use another partition tool (cfdisk, parted, sfdisk)? Did you try to read the sectors binarily (od, hexdump)?
BTW - you are fdisking sdc in your first quote and sdb in the second...
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LEARN ABOUT OPENSOLARIS
addpart
ADDPART(8) System Administration ADDPART(8)
NAME
addpart - tell the kernel about the existence of a partition
SYNOPSIS
addpart device partition start length
DESCRIPTION
addpart tells the Linux kernel about the existence of the specified partition. The command is a simple wrapper around the "add partition"
ioctl.
This command doesn't manipulate partitions on a block device.
PARAMETERS
device The disk device.
partition
The partition number.
start The beginning of the partition (in 512-byte sectors).
length The length of the partition (in 512-byte sectors).
SEE ALSO
delpart(8), fdisk(8), parted(8), partprobe(8), partx(8)
AVAILABILITY
The addpart command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux January 2015 ADDPART(8)