Problem booting 2.6.13 on RHEL 4

Rajat Jain
2005-09-14T04:08:05Z

Hi list,

I am using RHEL4 distribution, and am trying to boot with vanilla
2.6.13 stock kernel. My system has two onboard Adaptec SCSI
controllers. I am booting using initrd, and passing the correct
"root=" option. The following message pops up while trying to boot
with 2.6.13:

Loading scsi_mod.ko module
Loading sd_mod.ko module
Loading scsi_transport_spi.ko module
SCSI subsystem initialized
Loading aic7xxx.ko module
Creating root device
umount /sys failed: 16
Mounting root filesystem
Mount: error 6 mounting ext3
Mount: error 2 mounting none
Switching to new root
switchroot: mount failed: 22
umount /initrd/dev failed: 2
Kernel panic - not syncing: Attempted to kill init!

When I boot the default kernel supplied with RHEL 4, it boots successfully:

Loading scsi_mod.ko module
SCSI subsystem initialized
Loading sd_mod.ko module
Loading scsi_transport_spi.ko module
Loading aic7xxx.ko module
ACPI: PCI interrupt 0000:05:09.0[A] -> GSI 18 (level, low) -> IRQ 201
ACPI: PCI interrupt 0000:05:09.1[B] -> GSI 19 (level, low) -> IRQ 169
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
<Adaptec aic7899 Ultra160 SCSI adapter>
aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs

(scsi0:A:0): 160.000MB/s transfers (80.000MHz DT, offset 126, 16bit)
Vendor: HITACHI Model: DK32CJ-18MW Rev: JTN1
Type: Direct-Access ANSI SCSI revision: 03
scsi0:A:0:0: Tagged Queuing enabled. Depth 4
SCSI device sda: 35520512 512-byte hdwr sectors (18187 MB)
SCSI device sda: drive cache: write back
sda: sda1 sda2 sda3 sda4 < sda5 >
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
<Adaptec aic7899 Ultra160 SCSI adapter>
aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs

Can some one please suggest me what could be the problem? I doubt if
there is any option I need to enable in the kernel configuration?

Any pointers are welcome,

TIA,

Rajat Jain