hd probleme on fedora

[Kevin J. Cummings]

priou wrote:
> fdisk return : 
> Disque /dev/hdb: 81.9 Go, 81964302336 octets
> 16 têtes, 63 secteurs/piste, 158816 cylindres
> Unités = cylindres de 1008 * 512 = 516096 octets
> 
> Périphérique Boot      Start         End      Blocks   Id  System

This is good.  This is the empty partition table.  You have no 
partitions defined.

> i ve rebooted my system after
> i run another time fdisk, like those :
> 
> Commande (m pour l'aide): n   
> Action de commande
>    e   étendue
>    p   partition primaire (1-4)
> p
> Numéro de partition (1-4): 1
> Premier cylindre (1-158816, default 1): 
> Using default value 1
> Dernier cylindre ou +taille or +tailleM ou +tailleK (1-158816, default 
> 158816): 
> Using default value 158816
> 
> Commande (m pour l'aide): p
> 
> Disque /dev/hdb: 81.9 Go, 81964302336 octets
> 16 têtes, 63 secteurs/piste, 158816 cylindres
> Unités = cylindres de 1008 * 512 = 516096 octets
> 
> Périphérique Boot      Start         End      Blocks   Id  System
> /dev/hdb1               1      158816    80043232+  83  Linux
> 
> Commande (m pour l'aide): w
> La table de partitions a été altérée!
> 
> Appel de ioctl() pour relire la table de partitions.
> Synchronisation des disques.

OK, you've created 1 new partition, 80GB in size.
Now you have to run mkfs on this partition.  You've created it, but it 
contains no data yet, worse, you're probably reading the *old* 20GB data 
left over from the previous partitioning that you destroy.

You need to understand that partitioning only draws the lines on the 
disk where the files system will live.  It does not re-write the 
superblocks, directories, or data between those lines.  That is the job 
of mkfs.  (Or in your case, mkfs.ext3 if you want an ext3 file system.)

> After i mount this partition and i've that : 
> mount /dev/hdb1 /mnt/tmp

Yeah, you mounted without making the new file system.  Oops!

I hope this is clear now!   B^)

-- 
Kevin J. Cummings
kjchome at rcn.com
cummings at kjchome.homeip.net
cummings at kjc386.framingham.ma.us