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 SUSE
pvresize
PVRESIZE(8) System Manager's Manual PVRESIZE(8)
NAME
pvresize - resize a disk or partition in use by LVM2
SYNOPSIS
pvresize [-d|--debug] [-h|--help] [-t|--test] [-v|--verbose] [--setphysicalvolumesizesize] PhysicalVolume [PhysicalVolume...]
DESCRIPTION
pvresize resizes PhysicalVolume which may already be in a volume group and have active logical volumes allocated on it.
OPTIONS
See lvm(8) for common options.
--setphysicalvolumesize size
Overrides the automatically-detected size of the PV. Use with care, or prior to reducing the physical size of the device.
EXAMPLES
Expand the PV on /dev/sda1 after enlarging the partition with fdisk:
pvresize /dev/sda1
Shrink the PV on /dev/sda1 prior to shrinking the partition with fdisk (ensure that the PV size is appropriate for your intended new parti-
tion size):
pvresize --setphysicalvolumesize 40G /dev/sda1
RESTRICTIONS
pvresize will refuse to shrink PhysicalVolume if it has allocated extents after where its new end would be. In the future, it should relo-
cate these elsewhere in the volume group if there is sufficient free space, like pvmove does.
pvresize won't currently work correctly on LVM1 volumes or PVs with extra metadata areas.
SEE ALSO
lvm(8), pvmove(8), lvresize(8), fdisk(8)
Sistina Software UK LVM TOOLS 2.02.67(2) (2010-06-04) PVRESIZE(8)