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Solaris Shutdowned Unproperly No OS instance

Posted on 2006-11-07
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Last Modified: 2013-12-27
Hello!

My damned Solaris 10 restarted unproperly because of electricty and power problem.
When I re-started it, it said enter password for maintenance.

Then I decided to go failsafe...
When I got to failsafe mode, I saw:
No OS Instance Detected!

WHAT CAN I DO? How can I recover my OS?!!!!

Please advice.
Thanks from now!
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Question by:CSecurity
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7 Comments
 
LVL 38

Accepted Solution

by:
yuzh earned 500 total points
ID: 17895807
Try to use a Solaris software CD to boot up to single user mode, run format command
-> seletect the disk -> verify
to see if you can see the Harddisk and partion infor, then quit.
if format can see the HD, you might have hardware problem (eg HD failed, or  main
baord problem etc)

if you can see all the partintion, try to run fsck on all filesystem (use raw device)
see the answer in http:Q_21463230.html

after fsck, shultdown the system and try to boot up from the HD. if you can boot up
from the HD, use the Solaris CD to boot up to single user mode, and run installboot to
make the disk bootable (see http:Q_21463230.html) , and try again.

If it can fix it, you have to recover from the Full system backup (tape etc), or perform
a fresh install.
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LVL 17

Author Comment

by:CSecurity
ID: 17896478
This happens always to Solaris when shutdown it unproperly???? It happened alot for me!!!! and i installed OS again!

Solaris is this?
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LVL 38

Expert Comment

by:yuzh
ID: 17897083
>This happens always to Solaris when shutdown it unproperly???? It happened alot for me!!!! and i installed OS again!

It doesn't happen to me that often, I can only remember I have it twice since the late 90s. I 'm mainly
running Solaris on SPARC platform, and all my servers,
workstations has UPS.

Are you runing Solaris x86 (Intel)?

If you have important server, you should have full system backup for the server, to tape or other HD.
If you have backup HD (the HD are very cheap this days), you can get your system up and running in a few minutes. restore from tape can take hours.

Good night!


0
 
LVL 17

Author Comment

by:CSecurity
ID: 17905168
Tapes...Hard drives... Restore... OWFUL!!! IT's pain OS...
I'm using Solaris on Intel (x86)

But why solaris is like this?

Nothing happens to windows or Linux on this kind of problems...

Are you sure there is no solution for Solaris?
0
 
LVL 38

Expert Comment

by:yuzh
ID: 17905670
Have you try all the step in http:#17895807  ?
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