solaris下failsafe 是做什么用的？

Question

新手，X86机器进系统在grub界面，可以选择solaris failsafe，这个是用来做什么用的？出什么故障的时候可以用得到？与单用户模式有什么区别呢？谢谢~~

Answer 1

给你说的白点，你可以当这个为单用户用哦。

Answer 2

{:2_174:} 学习了

Answer 3

就是solaris10中一个可起动的小镜像，

相当于boot cdrom -s，

优点是速度快，不用光盘

Answer 4

是不是可以理解为： 单用户是solaris自己的；Failsafe是grub提供给solaris的。

Answer 5

越来越不明白了

Answer 6

The Failsafe Menu Entry

New to the Solaris 10 1/06 OS is a file, /boot/x86.miniroot-safe, containing a bootable, standalone Solaris image. This file can be loaded by choosing the Solaris failsafe entry from the GRUB menu. This is for the convenience of system administrators when the normal entry fails to boot.

Suppose you add a new package containing a faulty driver, and the system panics at boot time. Upon reboot, you can pick the Solaris failsafe menu entry. While in the failsafe session, mount the root file system on /a and run pkgrm -R to remove the faulty package. Once this is complete, you can reboot to the normal Solaris entry to resume system operation.

The file /boot/x86.miniroot-safe can also be copied to portable media, such as a USB stick, as a recovery tool.

Reference: http://www.sun.com/bigadmin/feat ... ub_boot_solaris.jsp

Answer 7

failsafe
{:3_182:} 有些E文，要用中文来解释 真的。。。 很费劲

Answer 8

我一直以为是一回事 ，，坐等有人来普及知识

Answer 9

再问下，我在x86系统下使用reboot -- -s命令是进入单用户模式么？
reboot -- -s
重启后有如下提示
booting to milestone "milestone/single-user:default"
requesting  system maintenance mode
single usermode
root password for system maintenance (control-d to bypass)****
single-user privilege assigned to /dev/console.
entering system maintenance mode
#

而如果在grub界面选择solaris failsafe
booting to milestone "milestone/single-user:default"
configuring devices
searching for installer OS instances...
solaris 10 10/09 s10x_u8wos_08a x86 was found on /dev/dsk/c0d0s0.
do you wish to have it mounted read-write on /a?{y,n} y
mounting /dev/dsk/c0d0s0 on /a
starting shell
#
这两种方式有啥区别