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没有Firmware Password,怎么才能进入OK状态? [复制链接]

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发表于 2004-12-28 01:51 |显示全部楼层
共有以下几个问题:
问题1:有台SUN U5的机子,当开机自检完内存后,当我STOP+A的时候,却出现Type boot, go(continue),or login(command mode)
>;

这时,我输入login回车后,却要输入firmware password。现在这个密码不知道是什么,能不能消除这个password,可以直接stop+a进入OK状态?是不是要用到串口线?具体如何操作呢?

问题2:如果有了串口线后,我连接好后,在PC端按下什么键能查看到串口输出的信息。在PC端是不是运行超级终端后,再按下特定的键就可以了?还有怎么样输出重定向到显示器上来?

问题3:本来这台机子是配256M内存的(两根128M)。可是不是SUN原装的那种。可能是小日本生产的内存条吧。内存条上的标签是
HB56UW1673E-6
9817 XD0605 /C

内存上的颗粒是
Japan C007
9811 GNN
5165405TT6

单条128M的内存怎么在U5上却变成了64M?

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发表于 2004-12-28 01:57 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

Yeah, PROM passwords can really be a pain in the neck, particularly if everyone's forgotten them or they were placed by someone who left the company but never said what the password is before (s)he left. I've purchased some systems from eBay where the PROM password was not taken off. Nimrods. I've also run into this same situation as yours numerous times at previous employers who were reconsituting old equipment that was shut off for a long time ... and of course with long-forgotten PROM passwords. Been there, dealt with that.

Can you at least get to the operating system and log in as root? If so, then I've had 100% success with:

eeprom "set-security-mode=none"

Now, granted that this is not with a Netra T1, but it's worked on every SPARC-based system that I've worked with and encountered this. But if you can't even get in as root, you're stuck on that one.

If you can't get to root but you have another Netra T1, another way is to take the operating system boot disk from the other T1 (or a really, really, REALLY similar architecture), boot from it, get to root, and do the above. The architectures have to be nearly exact, though. For example, taking a SparcStation 5 boot disk and booting it in a SparcStation 20 will not work, even though they're both sun4m.

Another option (again assuming that you have another T1) if you can't get to root on this particularl T1 is to take the PROM chip, put it in another T1 where you *can* get to root, boot, run the command above, and put the PROM chip back in the original T1.

And if that fails, I'm sure that Sun can provide you with a brand new PROM chip. I can't imagine that they'd be outrageously expensive.

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发表于 2004-12-28 02:26 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

楼上的英文我看得一知半解的。请问如果我能找到一块能正常启动,并能以root进入后,具体怎么操作呢?

还有问题2,问题3也请解答一下行吗

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发表于 2004-12-28 09:25 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

他告诉你用/usr/platform/`uname -i`(这个是你机器的平台)/sbin/eeprom这个command来运行那条命令。100%成功!!

climbmount好强的英语阿,佩服,羡慕ing....

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发表于 2004-12-28 12:45 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

http://forum.sun.com/thread.jspa?threadID=21177&messageID=59518

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发表于 2004-12-28 13:48 |显示全部楼层
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发表于 2004-12-28 18:44 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

[quote]原帖由 "fishsample2"]开机的时候按STOP+N也可以恢复NVRAM参数来去掉密码[/quote 发表:


这个方法我先试一下吧。不过我记得好像也试过了,行不通啊。等会再试一次

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发表于 2004-12-28 18:48 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

[quote]原帖由 "infinite"]http://forum.sun.com/thread.jspa?threadID=21177&messageID=59518[/quote 发表:


在这里我看到了比较详细的解决方法,谢谢啦!
不过在SUN的贴子里有个朋友的回答是这样的:
That is not true unless you can boot system.

You can boot system through CDrom and fromm eeprom

cahnge it.

他的意思是否是说如果我没有一块能正常启动,并能以root进入系统硬盘的话。用安装光盘的第一张启动,然后用eeprom "set-security-mode=none"
来解决该问题,或是启动后可以进入OK状态?然后setenv security-mode none?

这方面有点欠缺,请各位耐心指点,谢谢了

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发表于 2004-12-28 18:52 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

另外还想请指问题2,问题3
问题2主要是想知道如何用串口线来取得PC和U5的通讯?我在PC键盘上按什么键?还有之前运行超级终端就可以了是吗?因为目前手头上没有串口线,所以想先问一下,到时有了线实际操作一下

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发表于 2004-12-28 19:43 |显示全部楼层

没有Firmware Password,怎么才能进入OK状态?

问题二回复:

串口线设置挻简单的,采用超级终端连上SUN的串口,串口参数设置采用缺省 (9600-1-N-1), 连上后,接ENTER就可以看到了。
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