Hello, I am using Intel SE7500CW2 motherboard with on-board Promise PDC20267 FastTrak 100 IDE Raid controller and trying to get 2.4.21-pre6 kernel up and running with it. System is RedHat 7.3. When I boot my new kernel, I get following errors after Mounting root filesystem in read-write mode [OK] and some more [OK]- s: Finding module dependencies: execvp: Input/output error EXT3-fs error (device ataraid(114,2)): read_inode_bitmap: Cannot read inode bitmap - block_group=<number> Following many more errors like that with different block_group numbers (Sorry, theese are only notes on paper) I also tried RedHat kernel 2.4.20-8 and got the same errors. Kernel configuration file is kernel-2.4.20-i686-smp.config from RedHat 2.4.20-8 source tree, only made modifications noted in Murty Rompalli-s Linux ATA RAID HOWTO. With older kernels I got lost IRQ errors, but according to /proc/pci PDC20267 is not sharing its IRQ with any other device. I found postings saying that there is a bug in kernels prior 2.4.21 causing this bahavior, so I decided to try 2.4.21 my /etc/lilo.conf: prompt timeout=500 default=2.4.18-3smp boot=/dev/sda map=/boot/map install=/boot/boot.b message=/boot/message lba32 image=/boot/vmlinuz-2.4.18-3smp label=2.4.18-3smp initrd=/boot/initrd-2.4.18-3smp.img read-only root=/dev/sda2 append="hda=ide-scsi" image=/boot/vmlinuz-2.4.21-pre6 label=2.4.21-pre6 initrd=/boot/initrd-2.4.21-pre6.img read-only root=/dev/ataraid/d0p2 append="hda=ide-scsi" image=/boot/vmlinuz-2.4.20-8custom label=2.4.20-8custom initrd=/boot/initrd-2.4.20-8custom.img read-only root=/dev/ataraid/d0p2 append="hda=ide-scsi" Do I have to use append line? ATA RAID HOWTO talks about append line only when adding new non-os disks? Any ideas? -- Tiit Kaeeli tiit_k@xxxxx