[PC-BSD Testing] ad0sx vs ad0px ???

Walt Pawley walt at wump.org
Mon Mar 22 12:06:26 PDT 2010

At 11:04 AM -0400 3/22/10, Kris Moore wrote:
>On 03/21/2010 13:38, Walt Pawley wrote:
>>>> (much replicated verbiage removed)
>> I have a suspicion that it's related to recent fdisk behavior.
>> During the drive setup, the installer dd's a bunch of zeros
>> over the partition map area - but only the primary partition
>> map. If the drive had a GPT partition map already, the
>> secondary partition map would still be there. It's presence
>> might be bollixing process.
>> FWIW: I've switched gears, reinstalled PC-BSD 7 and am on my
>> way to getting back to work I need to get done. But I did set
>> up a USB drive to work on this on the side if anyone cares to
>> kibitz.
>This does indeed sound like some weird GPT partition is failing to get
>removed properly. Can you get the output of "gpart show" on that system?

That specific data is:

=>      34  60036413  da0  GPT  (29G)
        34       128    1  freebsd-boot  (64K)
       162   8388608    2  freebsd-ufs  (4.0G)
   8388770   4164304    3  freebsd-swap  (2.0G)
  12553074   8388608    4  freebsd-ufs  (4.0G)
  20941682  39094765    5  freebsd-ufs  (19G)

which looks pretty much like I'd expect it to look. I booted
the PC-BSD 8 x86 DVD into its "live" mode and used the install
desktop icon at the upper left of the screen to run the
installer. I chose to let virtually everything default. The
resultant /dev contents for the layout listed above were:

crw-r-----  1 root  operator    0, 108 Mar 22 11:20 /dev/da0
crw-r-----  1 root  operator    0, 123 Mar 22 11:20 /dev/da0p1
crw-r-----  1 root  operator    0, 127 Mar 22 11:20 /dev/da0p2
crw-r-----  1 root  operator    0, 128 Mar 22 11:20 /dev/da0p3
crw-r-----  1 root  operator    0, 129 Mar 22 11:20 /dev/da0p4
crw-r-----  1 root  operator    0, 130 Mar 22 11:20 /dev/da0p5

After the failure, the contents of
/tmp/.pc-sysinstall.log/pc-sysinstall.log were:

Running: find-update-parts
kern.geom.debugflags: 0 -> 16
Cleaning up da0
Running: dd if=/dev/zero of=/dev/da0 count=2048
2048+0 records in
2048+0 records out
1048576 bytes transferred in 1.031584 secs (1016472 bytes/sec)
Running fdisk on da0
Running: fdisk -I /dev/da0
fdisk: invalid fdisk partition table found
fdisk: Class not found
******* Working on device /dev/da0 *******
Stamping boot sector on da0
Running: gpart bootcode -b /boot/boot0 da0
da0 has bootcode
ERROR: The slice da0s1 doesn't exist! FDISK Failure
Running: umount /cdmnt-install
umount: /cdmnt-install: statfs: No such file or directory
umount: /cdmnt-install: unknown file system

It looks as though it partitions the drive reasonably and then
expects to find things like "da0sx" instead of "da0px."

NOTE: this is not using the drive I started with, which still
mounted internally and now running PC-BSD 7. It failed the same
way when trying to install 8.

Walter M. Pawley <walt at wump.org>
Wump Research & Company
676 River Bend Road, Roseburg, OR 97471

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