求救，X4170修改分辨率后无法进入系统

将分辨率修改后，输入root用户名，密码，报以下错误：
changed /boot/solaris/bootenv.rc
The recommended action ist to reboot to the failsafe archive to corecct  
the above inconsistency.to accomplish this ,on a grub,reboot and select "sloaris failsafe"option
then follow the prompts to update the boot archive
To continue booting at your own risk, clear the service:
# svcadm clear system/boot-archive
Apr 2 13:01:02 svc.start[7]: svc:/system/boot-archive:default: Method "/lib/
svc/method/boot-archive" failed with exit status 95.
[ system/boot-archive:default failed fatally (see ?svcs -x? for details) ]
Requesting System Maintenance Mode
(see /lib/svc/share/README for more information.)
Console login service(s) cannot run
Root password for system maintenance (control-d to bypass):


按照这个提示，我应该进入solaris failsafe，然后按照提示update boot archive，然后输入svcadm clear system/boot-archive命令。可是进入solaris failsafe 的时候没有提示我update boot archive啊。只有问我，do you wish to have it mounted read/write on  /a？
请教大虾如何update boot archive

进入maintenance后使用svcadm clear system/boot-archive命令，现在可以ping通主机了，但是启动的时候无法从图形界面进入，在wait for the desktop login screeen before logging in界面一直停滞