First of all I would like te say that I am very happy to have the following configuration working: RedHat 7.2 installed on an RAID - 0 array of 2 IBM 40 GB drives connected to a HPT370 onboard raidcontroler. My motherboard is an ABIT K7G-RAID. I used the recently released drivers (v1.3) from http://www.highpoint-tech.com/ to get RedHat 7.2 installed at first from CD-ROM. The manual that is included with the driver explains how to do this very good. As bootloader I used GRUB !!! The next thing I did was to start up my installed RedHat 7.2 with the kernel of "Highpoint (vmlinuz.hpt37x2)" Then I downloaded the newest kernel (v2.4.17) from http://www.kernel.org After extracting this kernel in /usr/src/linux I modified the source like this: In /usr/src/linux/init/main.c I inserted the following lines just above { "nftla", 0x5d00 }, { "nftlb", 0x5d10 }, { "nftlc", 0x5d20 }, { "nftld", 0x5d30 },: ***************** #if defined(CONFIG_BLK_DEV_ATARAID) { "ataraid/d0p",0x7200 }, { "ataraid/d1p",0x7210 }, { "ataraid/d2p",0x7220 }, { "ataraid/d3p",0x7230 }, { "ataraid/d4p",0x7240 }, { "ataraid/d5p",0x7250 }, { "ataraid/d6p",0x7260 }, { "ataraid/d7p",0x7270 }, { "ataraid/d8p",0x7280 }, { "ataraid/d9p",0x7290 }, { "ataraid/d10p",0x72A0 }, { "ataraid/d11p",0x72B0 }, { "ataraid/d12p",0x72C0 }, { "ataraid/d13p",0x72D0 }, { "ataraid/d14p",0x72E0 }, { "ataraid/d15p",0x72F0 }, #endif ******************* MAKE ROOTDEVICE AVAILEBLE Afterwards there are 2 possibilities I guess: 1) Edit /usr/src/linux/Makefile --------> change the line: export ROOT_DEV = CURRENT ------------> export ROOT_DEV = /dev/ataraid/d0pX where X = your rootpartition number 2) Go first to the next step (compiling the kernel) and after compiling the new kernel give the following command: /usr/sbin/rdev /boot/kernel-new /dev/ataraid/d0pX COMPILE NEW KERNEL Configure at least the following when doing "make menuconfig" # Block devices # CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_RAM=m CONFIG_BLK_DEV_INITRD=m # IDE, ATA and ATAPI Block devices # CONFIG_BLK_DEV_ATARAID=m CONFIG_BLK_DEV_ATARAID_HPT=m # SCSI support # CONFIG_SCSI=m CONFIG_BLK_DEV_SD=m # File systems # CONFIG_EXT3_FS=m CONFIG_JBD=m CONFIG_JBD_DEBUG=m After this you can compile the new kernel with "make dep clean modules modules_install bzImage" When this is ready you must copy the new kernel to /boot: "cp /usr/src/linux/arch/i386/boot/bzImage /boot/kernel-new You must also copy the System.map to /boot: "cp /usr/src/linux/System.map /boot/System.map-new Then you must edit the symlink /boot/System.map to point to /boot/System.map-new MODIFY FSTAB Now comes the tricky part: First we create a duplicate of /etc/fstab ------> /etc/fstab.new Herein we modify the entries from /dev/sda to /dev/ataraid/d0p Example: /dev/ataraid/d0p3 / ext3 defaults 1 1 To get the swap-device enabled when rebooting with the new kernel you must also edit /etc/fstab and add an entry like this: /dev/ataraid/d0p5 swap swap defaults 0 0 Offcourse you may have another partition that you want to use for swap ........ /dev/ataraid/d0p8 or /dev/ataraid/d0p4 MODIFY MODULES.CONF Comment the scsi_hostadapter alias to hpt37x2 with an "#" CREATE INITIAL RAMDISK Now we must make an initial ramdisk with the "/sbin/mkinitrd" command like this: /sbin/mkinitrd -f --preload scsi_mod --preload sd_mod --preload ext3 --preload ataraid --with=hptraid --fstab=/etc/fstab.new /boot/initrd-new.img 2.4.17 CONFIGURE GRUB Make a new entry in /etc/grub/grub.conf like this: Title Linux RAID root (hd0,X) kernel /kernel-new initrd /initrd-new.img NB. In root (hd0,X) the X must be replaced by the correct partition number where /boot is mounted on! Example root (hd0,3) <------ if /boot is mounted on /dev/ataraid/d0p4 Good luck to all of you with this hack! Questions please to raid@xxxxxxxxxxxxxxxxxxxx Michael http://bovendelft.xs4all.nl
