请帮助，编译内核出现问题:cannot open root device "sda1"

njubee

此帖已经改发到基础讨论版，望版主删除此贴


开机的错误信息是：
VFS: Cannot open root device "sda1" or unknown-block(0,0)
Please appen a correct "root= boot option
Time: tsc clocksource has been installed
kernel panic - not Syncing: VFS: Unable to mount root fs on unknoen-block(0,0)

我在suse10.1下编译内核2.6.20 (downloded by kernel.org)
我的硬盘是sata的，
make mrproper
make menuconfig#使用默认的，没作任何修改,直接保存退出（这样关于scsi的配置都是M）
make bzImage
make modules
make modules_install
cp /usr/src/linux-2.6.20/arch/i386/boot/bzImage /boot/vmlinuz-2.6.20-smp
cp /usr/src/linux-2.6.20/System.map /boot/System.map-2.6.20-smp

加到/boot/grub/menu.lst的内容是:

title Linux 2.6.20
    root (hd0,0)
    kernel /boot/vmlinuz-2.6.20-smp root=/dev/sda1 vga=0x31a    resume=/dev/sda7  splash=silent showopts