Fixed rootfs size of Yocto image

[petertseng]

Hi Community,

I am developing a customer-designed iMX91/93 SoC board using NXP BSP LF6.12.3-1.0.0

I need to reduce the size of rootfs to 1GB or less

## Fixed rootfs size of 1GB
IMAGE_ROOTFS_SIZE = "1048576"
IMAGE_ROOTFS_MAXSIZE = "1048576"
IMAGE_ROOTFS_EXTRA_SPACE = "0"
IMAGE_OVERHEAD_FACTOR = "1.0"

But I always get a 1.3GB size of rootfs.

$ df -h /
Filesystem      Size  Used Avail Use% Mounted on
/dev/root       1.3G  771M  401M  66% /

Could anyone help me about this frustrating issue?

Regrads,

Peter

[joanxie · Accepted solution]

pls refer to the similar topic as below

https://community.nxp.com/t5/i-MX-Processors/Resize-rootfs-of-Yocto-image/m-p/1426528

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/Guide-to-the-sdcard-format/ta-p/1107441

https://community.nxp.com/t5/i-MX-Processors/How-to-resize-the-rootfs-sdcard-bz2-on-IMX8mm-Yoct-Linu...