Sizes reported by Disk Usage Analyzer (baobab), du, df, and (c)fdisk, revisited

[Aaron]

Mario Vukelic wrote:
> On Mon, 2008-05-19 at 20:53 +0200, Mario Vukelic wrote:
>   
>> Follows Disk Usage Analyzer (baobab), which reports something
>> _completely different. I start it up and let it run a full scan.[...]
>>     
>
>   
>> Results:
>>
>> HD300:		Size 193.9 GB, Usage 76%   (-> 174.4 GB)
>> HD320-backup: 	 Size 40.4 GB,  Usage 15.9% (-> 6.4 GB)
>>
>> Now, obviously, these values make equally little sense interpreted as
>> 10^9 bytes (GB) and as 2^30 bytes (GiB). What gives?
>>     
>
> I might have another hint. 
>
> When checking the properties of my rdiff-backup folder on HD320-backup
> with Nautilus, I found that Nautilus reports it wrongly, too, close to
> baobab, and with an interesting message: "20,894 items, totalling 36.8
> GB (some contents unreadable)". So I guess, rdiff-backup's storage does
> pose problems to Gnome GUI tools.
>
> This does not explain, however, why baobab reports HD300 wrong, too.
> Nautilus gets this right when checking individual folders.
>
>
>   
Could it be that your 'lost+found' folders that are only accessible by 
root have some files in from bad shut downs?