LinuxQuestions.org - motherboard change to intel 915GV-now Debian is not booting

Hello,
I was using Debian Sid on a VIA chipset asus motherboard.now i got a replacement motherboard(better) Gigabyte 915GV.after that when i tried booting inn,Debian halts? at a message searching for root "/" file.yes.the grub is showing the correct partn.every entry is correct.now the error shows something related to scsi as i got a seagate sata hdd.i want to know how can i set SCSI subsystem to be corrected to get my Debian to boot into.the errors shown are some pci bus no.s etc
the last log found on the system is:

Code:

jaguar kernel: SCSI device sda: 156299375 512-byte hdwr sectors 

(80025 MB)

 jaguar kernel: sda: Write Protect is off

jaguar kernel: SCSI device sda: write cache: enabled, read cache

: enabled, doesn't support DPO or FUA

jaguar kernel: SCSI device sda: 156299375 512-byte hdwr sectors 

(80025 MB)

jaguar kernel: sda: Write Protect is off

jaguar kernel: SCSI device sda: write cache: enabled, read cache

: enabled, doesn't support DPO or FUA

 kernel:  sda: sda1 sda2 < sda5 sda6 sda7 sda8 sda9 sda10 

sda11 sda12 sda13 sda14 >

jaguar kernel: sd 0:0:0:0: Attached scsi disk sda