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Re: SCSI

Thanks Nathan!

You hit the nail on the head.  I was using the NCR7,8xx driver.  Once I
changed it to the NCR8xxx, the card was detected and the drives spun up.
Now, I am having problems with RAID5.  I can get RAID0 to work fine, but I
cannot figure out to get past a certain error message.

I get the following error when I try to #mdrun -p5 /dev/md0
                                                                  md:08:01:
invalid raid superblock magic (6c6c6c6c) on block 8886144
                                                                   /dev/md0:
invalid argument

Any clues on what I am doing wrong?

Let me know, and thanks for the help.

Greg Green
AdvantageCom



Nathan E Norman wrote:

> On Mon, 9 Feb 1998, Greg Green wrote:
>
> : Hello all:
> :
> : I am having problems detecting my scsi drives.  I have three drives all
> : jumpered correctly and I recompiled the kernel for raid5, and also for
> : my correct scsi controller.  I installed the correct raid145 patch, and
> : raidtools, and the latest linuxthreads. The problem is that I cannot
> : mkfs or mdcreate on these drives. I cannot even fdisk them, I keep
> : getting "unable to open /dev/sda."  The PC Bios detects the SCSI card on
> : boot up, but then Linux detects 0 scsi.  I have a NCR53875J SCSI
> : controller.
> : Below is my dmesg, I would appreciate any suggestions.
> : Thanks,
> : Greg Green
>
> You need to compile the correct driver into the kernel.  It is ncr8xx,
> not ncr7,8xx ... this drove me crazy for a day or two.  We're running an
> NCR53875 here, though I don't know if I like it yet.
>
> HTH
>
> : Below is my dmesg, I would appreciate any suggestions.
> :
> : Console: 16 point font, 400 scans
> : Console: colour VGA+ 80x25, 1 virtual console (max 63)
> : pcibios_init : BIOS32 Service Directory structure at 0x000fae70
> : pcibios_init : BIOS32 Service Directory entry at 0xfb310
> : pcibios_init : PCI BIOS revision 2.10 entry at 0xfb340
> : Probing PCI hardware.
> : Calibrating delay loop.. ok - 59.80 BogoMIPS
> : Memory: 63160k/65536k available (772k kernel code, 384k reserved, 1220k
> : data)
> : Swansea University Computer Society NET3.035 for Linux 2.0
> : NET3: Unix domain sockets 0.13 for Linux NET3.035.
> : Swansea University Computer Society TCP/IP for NET3.034
> : IP Protocols: ICMP, UDP, TCP
> : VFS: Diskquotas version dquot_5.6.0 initialized
> :
> : Checking 386/387 coupling... Ok, fpu using exception 16 error reporting.
> :
> : Checking 'hlt' instruction... Ok.
> : Intel Pentium with F0 0F bug - workaround enabled.
> : moving IDT ...  ... done
> : Linux version 2.0.32 (root@ADCOMLX01) (gcc version 2.7.2.1) #1 Mon Feb 9
> : 07:11:26 MST 1998
> : Starting kswapd v 1.4.2.2
> : Serial driver version 4.13 with no serial options enabled
> : tty00 at 0x03f8 (irq = 4) is a 16550A
> : tty01 at 0x02f8 (irq = 3) is a 16550A
> : PS/2 auxiliary pointing device detected -- driver installed.
> : Real Time Clock Driver v1.07
> : ide: i82371 PIIX (Triton) on PCI bus 0 function 57
> :     ide0: BM-DMA at 0xf000-0xf007
> :     ide1: BM-DMA at 0xf008-0xf00f
> : hda: ST32140A, 2015MB w/128kB Cache, CHS=1023/64/63
> : hdc: 655A, ATAPI CDROM drive
> : ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> : ide1 at 0x170-0x177,0x376 on irq 15
> : Floppy drive(s): fd0 is 1.44M
> : FDC 0 is a post-1991 82077
> : md driver 0.36.3 MAX_MD_DEV=4, MAX_REAL=8
> : linear personality registered
> : raid0 personality registered
> : raid1 personality registered
> : raid5 personality registered
> : scsi : 0 hosts.
> : scsi : detected total.
> : PPP: version 2.2.0 (dynamic channel allocation)
> : TCP compression code copyright 1989 Regents of the University of
> : California
> : PPP Dynamic channel allocation code copyright 1995 Caldera, Inc.
> : PPP line discipline registered.
> : eth0: 3Com 3c905 Boomerang 100baseTx at 0x6100, 00:60:08:04:3c:f8, IRQ
> : 11
> :   8K word-wide RAM 3:5 Rx:Tx split, autoselect/MII interface.
> : eth0: MII transceiver found at address 24.
> :   Enabling bus-master transmits and whole-frame receives.
> : eth0: Overriding PCI latency timer (CFLT) setting of 32, new value is
> : 248.
> : 3c59x.c:v0.46C 10/14/97 Donald Becker
> : http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
> : Partition check:
> :  hda: hda1 hda2 < hda5 hda6 hda7 hda8 >
> : VFS: Mounted root (ext2 filesystem) readonly.
> : Adding Swap: 130748k swap-space (priority -1)
> : Module inserted $Id: cdrom.c,v 0.8 1996/08/10 10:52:11 david Exp $
> : eexpress.c: Module autoprobe not recommended, give io=xx.
> : loading device 'eth1'...
> : eexpress.c: Failed to register card at 0x0.
> :
> :
> :
> :
> :
> : --
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> :
> :
>
> --
> Nathan Norman
> MidcoNet - 410 South Phillips Avenue - Sioux Falls, SD  57104
> phone: (605) 334-4454 fax: (605) 335-1173
> mailto://finn@midco.net   http://www.midco.net
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>
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