VMWare安装Gentoo错误"cannot open root device sda3...&am
参考：http://www.linuxso.com/linuxrumen/14856.html问题的原因是由于缺少SCSI驱动引起的
解决方法如下：
Step 1: 修改SCSI驱动类型
VM->Edit Settings->SCSI controller 0->change type，设为BusLogic
建议直接编辑虚拟主机目录下的gentoo.vmx文件scsi0.virtualDev = "buslogic" （原先为lsilogic）
此项设置据说是因为2.6+的内核不再支持LSI Logic
Step 2: 用LiveCD启动，并进入编译环境
参考http://www.gentoo.org/doc/en/gentoo-x86-quickinstall.xml
livecd/ # mount /dev/sda3 /mnt/gentoolivecd / # mount /dev/sda1 /mnt/gentoo/bootlivecd / # mount -t proc proc /mnt/gentoo/proclivecd / # mount --rbind /dev /mnt/gentoo/devlivecd / # chroot /mnt/gentoo /bin/bashlivecd / # env-update&& source /etc/profile
Step 3:设置内核参数
参考：http://www.gentoo-wiki.info/HOWTO_Install_Gentoo_on_VMware_ESX_server
Linux Kernel Configuration: VMware SCSI adapter
Device Drivers--->SCSI devicesupport---> ** Turn off EVERYTHING under here besides what is shown below ** SCSI disk support SCSI low-level drivers---> BusLogic SCSI support
livecd linux # make menuconfiglivecd linux #timemake -j2livecd linux # make modules_installlivecd linux #cparch/i386/boot/bzImage /boot/kernel
Step 4: 重启确认问题解决
livecd conf.d #exit
livecd / #umount /mnt/gentoo/dev /mnt/gentoo/proc /mnt/gentoo/boot /mnt/gentoo
livecd / #reboot
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