Adaptec 200S on kernel > 2.4.21 won't boot

Hi:

I have a dual Xeon with an Adaptec 200S zero-channel raid controller running the 2.4.21 kernel. I want to try a patch that requires 2.4.23-rc-1. However, when I build the kernel, it won't boot. I simply took the .config from the 2.4.21 kernel and ran make oldconfig. I have tried this with 2.4.22 unpatched and patched to 2.4.23-rc1. When the 2.4.21 machine boots, I get these messages:

SvrWks CSB5: IDE controller at PCI slot 00:0f.1 SvrWks CSB5: chipset revision 147
SvrWks CSB5: not 100% native mode: will probe irqs later

    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:pio, hdd:pio

hda: CDU5211, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: attached ide-cdrom driver.
hda: ATAPI 52X CD-ROM drive, 120kB Cache, UDMA(33) Uniform CD-ROM driver Revision: 3.12
SCSI subsystem driver Revision: 1.00 Loading Adaptec I2O RAID: Version 2.4 Build 5 Detecting Adaptec I2O RAID controllers... Adaptec I2O RAID controller 0 irq=18

     BAR0 f881b000 - size= 100000
     BAR1 f891c000 - size= 1000000

dpti: If you have a lot of devices this could take a few minutes.
dpti0: Reading the hardware resource table.
TID 008 Vendor: ADAPTEC Device: AIC-7899 Rev: 00000001
TID 009 Vendor: ADAPTEC Device: AIC-7899 Rev: 00000001
TID 517 Vendor: ADAPTEC R Device: RAID-1 Rev: 380ED
scsi0 : Vendor: Adaptec Model: 2000S FW:380E
Vendor: ADAPTEC Model: RAID-1 Rev: 380E
Type: Direct-Access ANSI SCSI revision: 02
Red Hat/Adaptec aacraid driver, Jul 15 2003
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 SCSI device sda: 71686144 512-byte hdwr sectors (36703 MB) Partition check:
sda: sda1 sda2 sda3
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
host/uhci.c: USB Universal Host Controller Interface driver v1.1 Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
USB Mass Storage support registered.
I2O Core - (C) Copyright 1999 Red Hat Software
I2O: Event thread created as pid 13
Linux I2O PCI support (c) 1999 Red Hat Software.
i2o: Checking for PCI I2O controllers...
I2O configuration manager v 0.04.
(C) Copyright 1999 Red Hat Software
I2O Block Storage OSM v0.9
(c) Copyright 1999-2001 Red Hat Software.
i2o_block: Checking for Boot device...
i2o_block: Checking for I2O Block devices...
I2O LAN OSM (C) 1999 University of Helsinki. i2o_scsi.c: Version 0.0.1
chain_pool: 0 bytes @ f7c46f40
(512 byte buffers X 4 can_queue X 0 i2o controllers)

However, when the non-working kernels boot, this happens before the loading Adaptec I2O Raid message (this message never appears).

kmod: failed to exec /sbin/modprobe -s -k block-major-8 errno=2
VFS: Cannot open root device "sda2" or 08:02
Please append a correct "root=" boot option
kernel panic: VFS: Unable to mount root fs on 08:02

The following options are enabled:

Adaptec AACRAID support
Adaptec AIC79xx support
Adaptec I2O Raid support
I2O support
I2O PCI support
I2O Block support
I2O LAN support
I2O SCSI support
I2O /proc support

I have tried this with the support in the kernel and as modules. The same thing happens each time. Is there something I have done wrong or is this broken?

    Lawrence MacIntyre     865.574.8696     [email protected]
               Oak Ridge National Laboratory
High Performance Information Infrastructure Technology Group