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Filesystem usage ?

Question asked by karstenklein on Jun 7, 2013
Latest reply on Aug 24, 2013 by Eric Nelson
Branched to a new discussion

Hi,

i´m currently working with the  SABRE board SDB from Freescale.

 

1) I prepared a SD-Card with 2GB for booting the Linux which comes as image, together with the MFG - Tool (kernel image, uBoot, and rootFS)

2) I prepared the internal eMMC which has a size of 8GB, with exactly the same images as used for the SD-Card

 

From my point of few, both, the SD Card and the eMMC are fomated in the same way (ext3).

 

For the eMMC 'df' gives me the following:

root@freescale /$ df -h

Filesystem                Size      Used Available Use% Mounted on

/dev/root                 7.3G    167.8M      6.7G   2% /

tmpfs                   438.0M     68.0K    437.9M   0% /dev

shm                     438.0M         0    438.0M   0% /dev/shm

rwfs                    512.0K    512.0K         0 100% /mnt/rwfs

rwfs                    512.0K    512.0K         0 100% /tmp

rwfs                    512.0K    512.0K         0 100% /var   

 

For the SD-Card  'df' gives me the following:

Filesystem            Size  Used Available Use% Mounted on
/dev/root             1.8G 57.8M  1.7G   3% /
tmpfs               438.0M 76.0K437.9M   0% /dev
shm                 438.0M     0438.0M   0% /dev/shm
rwfs                512.0K512.0K     0 100% /mnt/rwfs
rwfs                512.0K512.0K     0 100% /tmp
rwfs                512.0K512.0K     0 100% /var  

 

So, why are the used spaces different and why so big?

I expected the size of the rootFS should be something about 20MB.


I´m sure I am missing some fundamental items.

May be someone can shed up some light on my darkness.


Best regards

Karsten.


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