[wellylug] Blocks count discrepancy fdisk & df

Kingsley G. Morse Jr. change at nas.com
Sat Sep 8 14:51:24 NZST 2007


I wonder if the "fsck" command would shed any
light on the matter...

Thanks,
Kingsley

On 09/08/07 11:33, Carl Turney wrote:
> Hi,
> 
> I have a weird symptom on my system.  Here are the fdisk and df reports. 
> Take particular note of the massive difference between hda3 total blocks
> counts between the two, unlike for hda1 or hda2.
> 
> fdisk says ...
> 
> Disk /dev/hda: 80.0 GB, 80026361856 bytes
> 255 heads, 63 sectors/track, 9729 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/hda1   *           1          13      104391   83  Linux
> /dev/hda2              14         138     1004062+  82  Linux swap / Solaris
> /dev/hda3             139        9729    77039707+  83  Linux
> 
> df says ...
> 
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/hda3             37334192  20044920  15392800  57% /
> /dev/hda1               101086     13044     82823  14% /boot
> tmpfs                   257980         0    257980   0% /dev/shm
> 
> How did I get this?  Well, I had an 80gb ide hard disk with a ~40GB LINUX
> root in partition #3 and an unused ~40GB Windows in partition #4.  I
> mirrored the #3 LINUX partition onto a normal backup hard disk (using
> rsync - with success, as usual).  Then I deleted partition #3 and #4 and
> created one big LINUX partition #3.  I "restored" from the backup using
> the following tar command:
> tar lcpf - . | ( cd /mnt/newroot; tar xpf - )
> /mnt/newroot being the mount point for my newly created/expanded partition
> 
> Naturally, I rebooted immediately after repartitioning, relocated physical
> original/backup disks as necessary, etc.
> 
> Everything works fine.  All apps and data accessible etc.  BUT I AM VERY
> CONCERNED ABOUT THE CAUSE, POSSIBLE IMPLICATIONS, AND SOLUTION FOR THE
> BLOCKS COUNTS DISCREPANCY.
> 
> Thanks VERY much, anyone who can help.
> 
> Carl Turney
> Mobile 027 6913 080
> 
> 
> 
> 
> -- 
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