On Fri, Oct 31, 2008 at 11:32 AM, Wolfgang Messingschlager <[EMAIL PROTECTED]> wrote: > Dan Nicholson wrote: >> On Fri, Oct 31, 2008 at 10:39 AM, Wolfgang Messingschlager >> <[EMAIL PROTECTED]> wrote: >>> meanwhile I did >>> >>> - make mrproper >>> - make menuconfig (CONFIG_EXT3_FS=y) >>> - make >>> - make modules_install >>> - cp -v arch/i386/boot/bzImage /boot/vmlinuz-2.6.26.1 >>> - cp -v .config /boot/config-2.6.26.1 >>> - cp -v System.map /boot/System.map-2.6.26.1 >>> >>> >>> I added the lines >>> >>> title LFS kernel 2.6.26.1 >>> root (hd0,22) >>> kernel /vmlinuz-2.6.26.1 root=/dev/hdb20 ro >>> savedefault >>> >>> to /boot/grub/menu.lst >>> >>> This caused the following errors during boot >>> >>> VFS: cannot open root device "hdb20" or unknown block (0,0) >>> Please append a correct "root=" boot option; here are the available >>> partitions: >>> Kernal panic - not syncing: VFS: Unable to mount rootfs on unknown - >>> block (0,0) >> >> The problem is that you need the block devices and controller built in >> as well as the file system. So, SCSI + libata (to use /dev/sd* nodes) >> or IDE (to use /dev/hd* nodes). >> >> For SCSI + libata: >> CONFIG_BLK_DEV_SD=y >> CONFIG_BLK_DEV_SG=y >> CONFIG_ATA=y >> CONFIG_[SP]ATA_$controller=y >> >> For IDE: >> CONFIG_IDE=y >> CONFIG_IDE_$controller=y >> CONFIG_BLK_DEV_IDE=y >> CONFIG_BLK_DEV_IDEDISK=y >> >> -- >> Dan > > Thanks Dan, > > for the quick reply. I have only a IDE disk. > > # egrep '(CONFIG_IDE|CONFIG_BLK_DEV_IDE)' .config > CONFIG_IDE=y > CONFIG_BLK_DEV_IDE=y > # CONFIG_BLK_DEV_IDE_SATA is not set > CONFIG_BLK_DEV_IDEDISK=y > # CONFIG_IDEDISK_MULTI_MODE is not set > CONFIG_BLK_DEV_IDECD=m > CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y > CONFIG_BLK_DEV_IDETAPE=m > CONFIG_BLK_DEV_IDEFLOPPY=m > # CONFIG_BLK_DEV_IDESCSI is not set > CONFIG_BLK_DEV_IDEACPI=y > # CONFIG_IDE_TASK_IOCTL is not set > CONFIG_IDE_PROC_FS=y > # CONFIG_IDE_GENERIC is not set > CONFIG_BLK_DEV_IDEPNP=y > CONFIG_BLK_DEV_IDEDMA_SFF=y > CONFIG_BLK_DEV_IDEPCI=y > # CONFIG_IDEPCI_PCIBUS_ORDER is not set > CONFIG_BLK_DEV_IDEDMA_PCI=y > CONFIG_BLK_DEV_IDEDMA=y
That looks reasonable, although you may want CONFIG_IDE_GENERIC=y, too. > I am not sure what you mean with > > CONFIG_IDE_$controller=y It had been a while since I looked at the IDE driver. I thought there were specific backends for each controller (like Intel PIIX), but it appears there aren't. I think you can ignore this. Have you tried booting with the above configuration? -- Dan -- http://linuxfromscratch.org/mailman/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/lfs/faq.html Unsubscribe: See the above information page
