[Mageia-dev] df lying?

[Anssi Hannula]

07.01.2013 08:40, Felix Miata kirjoitti:
> What is upstream for df command? In openSUSE 12.2, Cauldron & F18 on the same 64 bit system, df on the only partition on my 1TB data HD is obviously lying as to usage and free on a nearly full EXT2 
> partition:
> 
> # df    # before copy
> Filesystem     1K-blocks      Used Available Use% Mounted on
> /dev/sdb1      968990412 942397904  26592508  98% /disks/esata
> 
> -rw-rw-r-- 1 5548561312 Jan  6 14:59 monk0714IonE-201301061400s2.ts
> -rw-rw-r-- 1 5548200540 Jan  6 15:59 monk0715IonE-201301061500s2.ts
> -rw-rw-r-- 1 5548657192 Jan  6 16:59 monk0716IonE-201301061600s2.ts
> -rw-rw-r-- 1 5547676772 Jan  6 17:59 monk0801IonE-201301061700s2.ts
> -rw-rw-r-- 1 5546660256 Jan  6 18:59 monk0802IonE-201301061800s2.ts
> -rw-rw-r-- 1 5547738436 Jan  6 19:59 monk0803IonE-201301061900s2.ts
> -rw-rw-r-- 1 5548427644 Jan  6 20:59 monk0804IonE-201301062000s2.ts
> 
> # df    # after copying above 37,925,705K bytes in 7 files to
> #       # /disks/esata from another system on the network
> Filesystem     1K-blocks      Used Available Use% Mounted on
> /dev/sdb1      968990412 942397904  26592508  98% /disks/esata
> 
> Unless this is a bug in df, how is this lack of info possible given the following filesystem info (e.g., no reserved blocks, and no journal) about the partition?
> 
> tune2fs 1.42.5 (29-Jul-2012)
> Filesystem volume name:   full1TazboxWD
> Last mounted on:          /disks/esata
[...]
> Free blocks:              6648127

This seems to be in line with the above "df" output.

What is the result of "du -sk /disks/esata"?
It should be approximately same as the number of used 1K-blocks in "df"
output (968990412).

[...]

-- 
Anssi Hannula