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安装过程正常. grub也启动了.
就是到了下面这里就不动了. 郁闷. (俺是在虚拟机下安装的)
但是在用livecd启动,能够挂载 sda1 和sda3 .俺刚学Gentoo. 
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VFS: cannot open root device "sda3" or unknow-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not Syncing : VFS unable mount root fs on unknow-block(0,0)
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设备如下:
/dev/sda1 ---->/boot EXT3
/dev/sda2 ---->SWAP SWAP
/dev/sda3 ---->/ EXT3
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fstab 文件
# /etc/fstab: static file system information.
# $Header: /var/cvsroot/gentoo-src/rc-scripts/etc/fstab,v 1.18.4.1 2005/01/31 23:05:14 vapier Exp $
#
# noatime turns off atimes for increased performance (atimes normally aren't
# needed; notail increases performance of ReiserFS (at the expense of storage
# efficiency). It's safe to drop the noatime options if you want and to
# switch between notail / tail freely.
#
# See the manpage fstab(5) for more information.
# <fs> <mountpoint> <type> <opts> <dump/pass>
# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/sda1 /boot ext3 noauto,noatime 1 2
/dev/sda3 / ext3 noatime 0 1
/dev/sda2 none swap sw 0 0
/dev/cdroms/cdrom0 /mnt/cdrom iso9660 noauto,ro 0 0
#/dev/fd0 /mnt/floppy auto noauto 0 0
# NOTE: The next line is critical for boot!
proc /proc proc defaults 0 0
# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
# use almost no memory if not populated with files)
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
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grub文件如下
default 0
timeout 9
splashimage=(hd0,0)/grub/splash.xpm.gz
title=Gentoo Linux 2.6.12-r6
root (hd0,0)
kernel /kernel-2.6.12-gentoo-r6 root=/dev/sda3
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