vinum root problem - "missing unit number"

[Steve Shorter]

Howdy!

	I am setting up a fileserver using two completely
mirrored disks using vinum. I am using vinum on
the root partition.

	I booted from a third disk and setup the vinum volumes
and mounted them under /mnt, then just did "make installworld DESTDIR=/mnt"

	Everything was cool, could fsck -n /dev/da1a (the "fake" a partition)
no problem. Everything is happy booting from a third drive
and mounting vinum volumes.

	The loader comes up fine and shows the vinum module
loaded and the variables vinum_root and vinum_drives correctly
as specified in loader.conf.

	The system is 4.8-STABLE from about 3 weeks ago.


/boot/loader.conf (on vinum/root) contains

vinum_load="YES"			# Concatenated/mirror/raid driver
vinum_root="root"		# Concatenated/mirror/raid driver
vinum_drives="/dev/da0 /dev/da1"# Concatenated/mirror/raid driver


	Loader is finding the correct "fake" disk partition "a" and
everything but when the kernel boots mountroot fails with
"missing unit number".



	Any ideas for debugging, or what I am doing wrong welcome.


	thanx - steve


Additional info follows ...



kernel boot ...

	The Regents of the University of California. All rights reserved.
FreeBSD 4.8-STABLE #0: Fri Jul 25 10:41:22 EDT 2003
    root at mfs0:/usr/src/sys/compile/MFS
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 1130456212 Hz
CPU: Intel(R) Pentium(R) III CPU family      1133MHz (1130.46-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x6b1  Stepping = 1
  Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 2147418112 (2097088K bytes)
avail memory = 2087862272 (2038928K bytes)
Preloaded elf kernel "kernel" at 0x4038a000.
Preloaded elf module "vinum.ko" at 0x4038a09c.
Pentium Pro MTRR support enabled
Using $PIR table, 13 entries at 0x400f3b60

[snip]

vinum: loaded
Mounting root from ufs:/dev/vinum/root
missing unit number
setrootbyname failed
ffs_mountroot: can't find rootvp
Root mount failed: 6
Mounting root from ufs:da0s4a
Root mount failed: 6
Mounting root from ufs:da0a
Root mount failed: 6

mountroot> ?
Possibly valid devices for 'ufs' root:
 "console" "ctty" "mem" "pts" "ptc" "log" "fd" "da" "FD" "pass" "pci" "vinum" "xpt"



/etc/fstab in /dev/vinum/root ....

/dev/vinum/swap        none         swap    sw        0     0
/dev/vinum/root        /            ufs     rw        1     1
/dev/vinum/usr         /usr         ufs     rw        2     2
/dev/vinum/var         /var         ufs     rw        2     2
proc                   /proc        procfs  rw        0     0


disklabels for both mirrored disks ....

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  a:   253671      281    4.2BSD     2048 16384    97 	# (Cyl.    0*- 15*)
  c: 35843670        0    unused        0     0       	# (Cyl.    0 - 2231*)
  h: 35843654       16     vinum                    	# (Cyl.    0*- 2231*)



	This is vinum configuration file that was used to set up the volume
They were originally recongnized as da1 da2, but I moved them to da0 da1.
cause I need the other disk to boot and setup other volumes on other boxen.

# vinum.cfg
#
#
#
drive d0 device /dev/da1h
drive d1 device /dev/da2h

volume root setupstate
	plex org concat
		sd length 253671s driveoffset 265s drive d0
	plex org concat
		sd length 253671s driveoffset 265s drive d1
volume swap setupstate
	plex org concat
		sd length 2097152s driveoffset 253936s drive d0
	plex org concat
		sd length 2097152s driveoffset 253936s drive d1
volume usr setupstate
	plex org concat
		sd length 2097152s driveoffset 2351088s drive d0
	plex org concat
		sd length 2097152s driveoffset 2351088s drive d1
volume var setupstate
	plex org concat
		sd length 409600s driveoffset 4448240s drive d0
	plex org concat
		sd length 409600s driveoffset 4448240s drive d1
volume netb setupstate
	plex org concat
		sd length 10485760s driveoffset 4857840s drive d0
	plex org concat
		sd length 10485760s driveoffset 4857840s drive d1
volume netb_root setupstate
	plex org concat
		sd length 16777216s driveoffset 15343600s drive d0
	plex org concat
		sd length 16777216s driveoffset 15343600s drive d1
volume netb_host setupstate
	plex org concat
		sd length 3722838s driveoffset 32120816s drive d0
	plex org concat
		sd length 3722838s driveoffset 32120816s drive d1