Login or Register to Ask a Question and Join Our Community


Solaris

Need help with nvram

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Operating Systems Solaris Need help with nvram
# 1  
Old 10-06-2011
Need help with nvram
Hi Gurus,

Can somebody explain me actually how a NVRAM works on a sparc server. I am really confused and the same level of confusion with eeprom .
# 2  
Old 10-07-2011
Think of PROM like the BIOS on x86 hardware. On SPARC hardware you manipulate those settings such as auto-boot and other options from PROM. You access it before the OS boots or by sending a break to the system. It's 100% command line driven unlike a BIOS. The eeprom tool inside Solaris allows you to view an manipulate NVRAM from the OS. Anything you change using the eeprom command won't take affect until the next reboot.

Do a man on eeprom and you'll see more detail.

Here is Wikipedia's arcticle on NVRAM:
Non-volatile random-access memory - Wikipedia, the free encyclopedia
Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. Solaris

Can Missing mpk Code be added via NVRAM

Guys, I'm fighting a real bitch of a problem. I've got 2 Tadpole Bullfrog sun4u laptops. One just lost is NVRAM battery - invalid IDPROM. The idprom is virtually all zeros. Clock ticks, NVRAM appears good...testing with and with battery out. Our damn Tadpole boys removed virtually every method of... (6 Replies)
Discussion started by: forjack842
6 Replies

2. AIX

Resetting the NVRAM

Does anybody know how to reset the NVRAM on a System p 520 (power 5)? (7 Replies)
Discussion started by: livehho
7 Replies

3. Solaris

new NVRAM

what is the requirements to install a new nvram for sun fire v890 server. should I keep the same host id and mac address, or it doesn't matter the server will boot with the new nvram regardless to the host id and mac address. (4 Replies)
Discussion started by: gad314
4 Replies

4. Solaris

NVRAM change

I have replaced the nvram on my Sun V480 and now the system stops at the "ctrl-d for normal startup, or root password for maintenance" part. The nvram auto-boot=true, but it still stops here. Any help would be appreciated. Thanks. (4 Replies)
Discussion started by: kjbaumann
4 Replies

5. UNIX for Advanced & Expert Users

Hostid "nvram"

Hi; what are the steps to modify the hostid and ethernet address "nvram content" of Sun ultra 5 and Sun ultra 10 machines, simple steps if available would be appreciated Ultra 5 P/N 380-0176-01 ultra 10 P/N 600-3796-02 (2 Replies)
Discussion started by: adol3
2 Replies

6. Solaris

Nvram

I have Ultra1 SUN machine, its NVRAM got damaged. I purchased new NVRAM. now the host id of the new nvram is by default different than the old one.Any way to program it to change the new host id to be the same like the host id of the damaged one? (3 Replies)
Discussion started by: adol3
3 Replies

7. UNIX for Dummies Questions & Answers

Nvram?

what is its signifance and how do you flush it. i was reading this book that said something about flushing the nvram before un-installing it. how do you do that and also whats the purpose of this nvram when the regular RAM is available (2 Replies)
Discussion started by: TRUEST
2 Replies

8. UNIX for Dummies Questions & Answers

nvram reset or crack password

Hello guys ,and girls. Im having a very interesting problem. I have a Netra SUN machine and i had it here for quite a while now...i wanted to install it as a new server and todo so i needed to mount a cd rom and to change the boot at the prom level to cdrom. this could work but i forgot the... (5 Replies)
Discussion started by: talroze
5 Replies
Login or Register to Ask a Question