[Buildroot] Need help with genimage

Baruch Siach baruch at tkos.co.il
Sun Jan 8 17:45:38 UTC 2017


Hi Jörg,

On Sun, Jan 08, 2017 at 12:58:51PM +0100, Jörg Krause wrote:
> I am able to generate the sd card image and copy it to the sd card
> using Suses imagewriter. The board boots fine. However, the rootfs size
> is not 512MB as expected:
> 
> # df -hT
> Filesystem           Type            Size      Used Available Use%
> Mounted on
> /dev/root            ext4           38.7M     37.9M         0 100% /
> devtmpfs             devtmpfs      501.9M         0    501.9M   0% /dev
> tmpfs                tmpfs         502.4M         0    502.4M   0%
> /dev/shm
> tmpfs                tmpfs         502.4M      3.9M    498.4M   1% /tmp
> tmpfs                tmpfs         502.4M     24.0K    502.4M   0% /run
> 
> I am not able to create any file larger file on the filesystem nor
> start some programs.
> 
> What am I missing here? Can somebody enlighten me please :-)

Unless you set BR2_TARGET_ROOTFS_EXT2_BLOCKS and BR2_TARGET_ROOTFS_EXT2_INODES 
you'll get a minimal ext2/3/4 filesystem with no free space. Alternatively, 
you may run on target the resize2fs tool from the e2fsprogs package on the 
root filesystem to expand the filesystem to the size of the partition.

Hope this helps,
baruch

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
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