Re: [pups] Progress on 2.11BSD kernel - TUHS

22 Mar 2003

Hi -

...
  From: "Ian King"
&lt;iking(a)killthewabbit.org&gt;
 I tried changing the partition type with disklabel -e -r but, when I exited
 vi, I got an error message saying that the type I'd provided was not valid.
 Viewing the label (with disklabel -r) showed the fstype set to 'unknown'.

	"unknown" or "unused"

	On my virtual 11 I see disklabel report:

8 partitions:
#        size   offset    fstype   [fsize bsize]
  a:    16720        0   2.11BSD     1024  1024         # (Cyl.    0 - 39)
  b:     8360    16720      swap                        # (Cyl.   40 - 59)
  c:   340670        0    unused     1024  1024         # (Cyl.    0 - 814)
  h:   315590    25080   2.11BSD     1024  1024         # (Cyl.   60 - 814)

...
  Just for grins, I tried modifying the drive type, too
- no success there,
 either.  The disklabel utility isn't having any of that; again it claims
 'unknown'. 
	Ah, that says something is corrupt somewhere.

	If you look at /usr/include/sys/disklabel.h you'll see the
	table of filesystem types:

static char *fstypenames[] = {
        "unused",
	"swap",
	"Version 6",
	"Version 7",
	"System V",
	"2.11BSD",
	"Eighth Edition",
	"4.2BSD",
	"MSDOS",
	"4.4LFS",
	"unknown",
	"HPFS",
	"ISO9660",
	0
};

	So for 'unknown' to appear there would need to be a 10 in the type
	field instead of a 5 (for "2.11BSD").   'unused' is a 0 obviously.

	Try booting up a standalone disklabel and see what it says without
	a kernel getting involved.

	Steve