Bad magic number in disk label.


 
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Operating Systems Solaris Bad magic number in disk label.
# 29  
Old 06-18-2015
Are you saying that there is data on this disk that you would like to save and that you have no backup?

If so, you may need to take some kind of image of the drive first (do you have any software which can do that?) so that you can recover to this position should anything we try fail.
# 30  
Old 06-18-2015
As I said, "ATA transport failed" and "I/O error" mean that your disk is broken.
You can as well verify with format -> select the disk -> analyze -> read
And then see the Error count in iostat -E for "dad1" (the kernel driver name for the "c0t0d0" disk, you can do iostat -nE to see the other name).
BTW the geometry matches a 20 GB disk; it is normal that the last sectors.of a disk or partition are unused.
Get a new disk! Restore your data or start an installation from scratch.
This User Gave Thanks to MadeInGermany For This Post:
# 31  
Old 06-26-2015
Losing hope already that we can retrieve the data...So I think need your help to provide me steps to format and make it running again...thanks hicksd8...have a nice day!
# 32  
Old 06-26-2015
It depends if you desperately need the data from the disk or not. There are things that could be tried but perhaps you should save an image of the disk first if the data is high value.

To enter the Solaris install routine you simply boot from CD as you have been doing but leave off the -s for single user.

Code:
ok> boot cdrom

but once you reinstall your data is gone.
# 33  
Old 06-26-2015
Hello hicksd8...really need the data, but from all the forums I've joined. You're the only one response. Then I saw we're running out of options already. But you mentioned "there are things that could be tried" so maybe we can try it first? thanks
# 34  
Old 06-27-2015
First thing to try is as suggested by MadeInGermany post#30.

Boot from CD into single user:

Code:
 
 ok> boot cdrom -s

Run the 'format' command, select the disk, 'analyze', 'read'.

If you are trying to recover data ensure you select the non-destructive read test. It will take a long time to run.

This should tell us how damaged (hardware wise) the disk is.

The next thing to try will be to rewrite the disk label by using 'format' in expert mode and selecting option to label the disk.
Code:
# format -e

Let's 'analyze' the disk first.
# 35  
Old 06-30-2015
Quote:
Originally Posted by hicksd8
First thing to try is as suggested by MadeInGermany post#30.

Boot from CD into single user:

Code:
 
 ok> boot cdrom -s

Run the 'format' command, select the disk, 'analyze', 'read'.

If you are trying to recover data ensure you select the non-destructive read test. It will take a long time to run.

This should tell us how damaged (hardware wise) the disk is.

The next thing to try will be to rewrite the disk label by using 'format' in expert mode and selecting option to label the disk.
Code:
# format -e

Let's 'analyze' the disk first.

Hello hicksd8...the attached file is the results...thanks....
Bad magic number in disk label.-capture_4jpg
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