Re: BAD SUPER BLOCK: MAGIC NUMBER WRONG

From: Mr Ping (_NO_SPAM__at_telia.com)
Date: 02/23/04 

Date: Mon, 23 Feb 2004 13:15:00 +0100

Tony Walton wrote:
> Mr Ping wrote:
>> Hi !
>>
>> I have add a new disk to my sparc 10, with Solaris 8.
>>
>> I have mounted this:
>
> No you haven't. /dev/rdsk/c0t1d0s0 doesn't feature in the output
> below.
>
>>
>> / (/dev/dsk/c0t0d0s0 ): 31064 blocks 20857
>> files /usr (/dev/dsk/c0t0d0s6 ): 172902 blocks
>> 192672 files /proc (/proc ): 0 blocks
>> 932 files /dev/fd (fd ): 0 blocks
>> 0 files /etc/mnttab (mnttab ): 0 blocks
>> 0 files /var (/dev/dsk/c0t1d0s6 ): 554710 blocks
>> 161273 files /var/run (swap ): 310560 blocks
>> 9609 files /tmp (swap ): 310560 blocks
>> 9609 files /opt (/dev/dsk/c0t0d0s5 ): 47564 blocks
>> 13368 files /export/home (/dev/dsk/c0t0d0s7 ): 1302516 blocks
>> 253743 files /usr/openwin (/dev/dsk/c0t0d0s1 ): 167084 blocks
>> 116062 files
>>
>> But i get error when i reboot.
>>
>> ** /dev/rdsk/c0t1d0s0
>> BAD SUPER BLOCK: MAGIC NUMBER WRONG
>> USE AN ALTERNATE SUPER-BLOCK TO SUPPLY NEEDED INFORMATION;
>> eg. fsck [-F ufs] -o b=# [special ...]
>> where # is the alternate super block. SEE fsck_ufs(1M).
>>
>> If try to run fsck -F ufs /dev/rdsk/c0t1d0s0 i still get magic
>> number wrong.
>>
>> Any sugestion, for my problem "please" ?
>
>
> Did you actually *create* a filesystem on that partition after you
> added the disk? Before doing so, make sure that partition 0 doesn't
> overlap anything else, though!

I did a format on the new disk.
This disk have been in a other sun, before.
And i did a newfs also.

If i do a verify from the the format is show this:

format> ver

Primary label contents:

Volume name = < >
ascii name = <SUN0424 cyl 1151 alt 2 hd 9 sec 80>
pcyl = 2500
ncyl = 1151
acyl = 2
nhead = 9
nsect = 80
Part Tag Flag Cylinders Size Blocks
  0 root wm 0 - 91 32.34MB (92/0/0) 66240
  1 swap wu 92 - 183 32.34MB (92/0/0) 66240
  2 backup wu 0 - 1150 404.65MB (1151/0/0) 828720
  3 unassigned wm 0 0 (0/0/0) 0
  4 unassigned wm 0 0 (0/0/0) 0
  5 unassigned wm 0 0 (0/0/0) 0
  6 var wm 184 - 1150 339.96MB (967/0/0) 696240
  7 unassigned wm 0 0 (0/0/0) 0

//Jan

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