partitioning program does not see scsi disk

HI

I'm trying to install
FreeBSD 6.2-RELEASE #0: Sat Jan 13 02:32:39 UTC 2007
on
AlphaServer DS10L 466 MHz Console V7.3-1, Feb 27 2007 13:17:58

I cannot see the SCSI disk in the partitioning program.

The disk worked fine under VMS 8.3.

I can see the disk in SRM:

>>>show dev
dka0.0.0.17.0              DKA0       QUANTUM ATLAS10K3_18_WLS  020K
dqb0.0.1.13.0              DQB0                        CD-224E  9.5B    
dva0.0.0.0.0               DVA0                               
ewa0.0.0.9.0               EWA0              08-00-2B-87-42-31
ewb0.0.0.11.0              EWB0              08-00-2B-87-42-4E
pka0.7.0.17.0              PKA0                  SCSI Bus ID 7
>>>


and the SCSI controller is the standard NCR 53C895:


>>>init
Initializing...
*** keyboard not plugged in...
1024 Meg of system memory
probing hose 0, PCI
probing PCI-to-ISA bridge, bus 1
bus 0, slot 9 -- ewa -- DE500-BA Network Controller
bus 0, slot 11 -- ewb -- DE500-BA Network Controller
bus 0, slot 13 -- dqa -- Acer Labs M1543C IDE
bus 0, slot 13 -- dqb -- Acer Labs M1543C IDE
bus 0, slot 17 -- pka -- NCR 53C895
initializing GCT/FRU at 3ff40000
Testing the System
Testing the Disks (read only)
Testing ew* devices.
System Temperature is 43 degrees C

AlphaServer DS10L 466 MHz Console V7.3-1, Feb 27 2007 13:17:58
>>>


so it should be supported by the ncr(4) driver. I could not see this
driver in modules or in kernel (why? should it appear somewhere?)
so I further loaded sym(4) module before booting:


Loading /boot/defaults/loader.conf 
/boot/kernel/kernel data=0x6fed50+0x39a70 syms=[0x8+0x76578+0x8+0x61c05]
-
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel] in 9 seconds... 

Type '?' for a list of commands, 'help' for more detailed help.
OK load sym
/boot/kernel/sym.ko text=0x10048 data=0x32ae+0xa syms=[0x8+0x12f0+0x8+0xb40]
OK lsmod
 0xfffffc0000300000: /boot/kernel/kernel (elf kernel, 0x810950)
  modules: splash.1 ufs.1 nfsserver.1 nfslock.1 nfs.1 nfs4.1 wlan.1 wlan_wep.1 wlan_tkip.1 wlan_ccmp.1 if_gif.1 if_faith.1 ether.1 sysvshm.1 sysvsem.1 sysvmsg.1 cd9660.1 isa.1 pseudofs.1 procfs.1 msdosfs.1 usb.1 cdce.0 random.1 ppbus.1 pci.1 null.1 mpt_raid.1 mpt.1 mpt_cam.1 mpt_core.1 miibus.1 mem.1 ispfw.0 isp.1 sbp.1 fwe.1 firewire.1 if_ath.1 ath_rate.1 ath_hal.1 ast.1 afd.1 acd.1 atapci.1 ad.1 ata.1 ahc.1 ahc_pci.1 ahc_isa.1 ahc_eisa.1 cam.1 
 0xfffffc0000b10950: /boot/mfsroot (mfs_root, 0x438000)
 0xfffffc0000f4a000: /boot/kernel/sym.ko (elf module, 0x25140)
  modules: sym.1 
OK 


and I can see the disk detected correctly by sym during boot:

[...]
da0 at sym0 bus 0 target 0 lun 0
da0: <QUANTUM ATLAS10K3_18_WLS 020K> Fixed Direct Access SCSI-3 device 
da0: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing Enabled
da0: 17537MB (35916548 512 byte sectors: 255H 63S/T 2235C)
[...]


but after that I cannot see the disk (this is a screen copy):

                         FreeBSD Disklabel Editor


Part      Mount          Size Newfs   Part      Mount          Size Newfs
----      -----          ---- -----   ----      -----          ---- -----








                                                                           



The following commands are valid here (upper or lower case):
C = Create        D = Delete   M = Mount pt.
N = Newfs Opts    Q = Finish   S = Toggle SoftUpdates   Z = Custom Newfs
T = Toggle Newfs  U = Undo     A = Auto Defaults        R = Delete+Merge

Use F1 or ? to get more help, arrow keys to select.


furthermore if I press some keys, like Z, or R, I get signal 11:

 
	+--------------------------- Message ---------------------------+
	|A signal 11 was caught - I'm saving what I can and shutting    |  
	|down.  If you can reproduce the problem, please turn Debug on  |  
	|in the Options menu for the extra information it provides      |  
	|in debugging problems like this.                               |  
	+-------------------------------------------------------(100%)--+  
	|                         [  OK  ]                              |  
	+-------------------[ Press enter or space ]--------------------


I've only found one related thread on the net:
http://lists.freebsd.org/pipermail/freebsd-alpha/2003-April/000162.html

in which the author had what seems like a similar problem and he
resolved it by:

	Fixed my own problem really.  Turns out that neither disk had an 
	acceptable first block for FreeBSD.  Running a "dd if=/dev/null 
	of=/dev/da1 bk=0 s=1" (or whatever the correct syntax is, I forget) to 
	zero out the first block made the disk appear in the 5.0 disklabel 
	program.

Now, how do I do that? Do I actually need to remove the disk from alpha
and put in some other unix box?

I tried to write NIL to the first block using SRM exer as follows:

>>>init
>>>chmod +w dka*
>>>exer -d1 0 -sb 0 -eb 1 -a 'w-Rc' dka0

but nothing changed.

There is nothing on this problem in the release notes:
http://www.freebsd.org/releases/6.2R/hardware-alpha.html

except:

	The kernel config file must contain:

	options    DEC_ST6600    
	cpu EV5

I'm not sure how to do this before boot.

Any ideas?

thanks a lot
anton


-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 928 8233 
Fax: +44 (0)117 929 4423
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