Problem with writing an UFS2 to iStore Storage System / can't find block in cyl 0 / bad magic number

[Erik Scholtz, ArgonSoft GmbH]

Miroslav,

works perfectly! Many thanks. One last question. After creating the 
filesystem successfully, I tried to run a fsck on the new partition. 
unfortunatly, this does not seem to be possible:

**********************************************************************************
|# fsck /dev/da0p1
|fsck: Could not determine filesystem type
**********************************************************************************

Do you have a hint for me, how to repair the filesystem if it gets 
broken? fsck_ufs and fsck_ffs repair the filesystem to dead.

Cheers,
Erik

---
My blog: http://blog.elitecoderz.net


Miroslav Lachman wrote:
> Erik Scholtz, ArgonSoft GmbH wrote:
>> Miroslav,
>>
>> thanks for your reply. No - I haven't tried this yet and so did this a
>> minute ago, but got stucked on the second command:
>>
>> ********************************************************************************** 
>>
>>
>> |# gpart create -s GPT da0
> 
> [...]
> 
>> |# gpart add -b 1 -s 20971519 -t freebsd-ufs -l MyLabel da0
>> |gpart: start '1': Invalid argument
>> |
>> |# gpart add -b 34 -s 20971519 -t freebsd-ufs -l MyLabel da0
>> |gpart: size '20971519': Invalid argument
>> |
>> |# gpart add -b 34 -s 20971485 -t freebsd-ufs -l MyLabel da0
>> |gpart: size '20971485': Invalid argument
>> ********************************************************************************** 
>>
>>
>>
>> Since gpart set the begin (start) on 1 and not on 34, I changed the -b
>> option too. After failing this, I set the begin to 34 as in your
>> example, which did not work either. Then I reduced the size (since when
>> the start is later, it reduces the size too), which also did not work.
> 
> You can try 'gpart show da0' right after gpart create, it will show you 
> available space.
> 
> for example:
> # gpart show da2
> =>       34  209715133  da2  GPT  (100G)
>          34  209715133       - free -  (100G)
> 
> The first line tells you about your hard drive. You can start 
> partitioning from sector 34 and the last available sector is 209715133.
> The second line gives information that there is free space beginning at 
> sector 34 and spreading to sector 209715133.
> It means that the drive is empty.
> 
> I am not sure if -s must be given in 512 bytes sectors, I saw some 
> HowTos with "-s 100G", but it didn't work in my setup with FreeBSD 7.2 
> (it may work on 8.0?) You can try both versions and you can try little 
> smaller partition if it gives you an error.
> (I am not too experienced with gpart)
> 
> Miroslav Lachman