cbootimage(1) tegra BCT compiler


cbootimage [ options ] configfile [ inputimage ] outputimage


This program is used to create images suitable to place into the boot flash of a device using a Tegra SoC. There are two primary modes of operation of cbootimage:

Compile a textual representation of a BCT into a binary image.
Generate an entire boot image from a previously compiled BCT and a bootloader binary.

Platforms supported

  • Tegra20
  • Tegra30
  • Tegra114
  • Tegra124
  • Tegra132
  • Tegra210


Generate the new bct file from the given config file.
-h, --help, -?
Print help text and exit.


-d, --debug
Output debugging information.
Specify the odm_data value (in hex).
-t, --tegra NN
Select target device. Must be one of: 20, 30, 114, 124, 132, 210.
-s, --ssoc tegraNN
Select target device. Must be one of: tegra20, tegra30, tegra114, tegra124, tegra32, tegra210.
-u --update
Copy input image data and update bct configs into new image file


To generate a bct file from a text description obtained either through bct_dump(1) or cbootimage-configs:

$ cbootimage -gbct -t124 PM375_Hynix_2GB_H5TC4G63AFR_RDA_924MHz.bct.cfg PM375_Hynix_2GB_H5TC4G63AFR_RDA_924MHz.bct
New BCT file PM375_Hynix_2GB_H5TC4G63AFR_RDA_924MHz.bct has been successfully generated!

To generate a boot image file including the newly generated bct:

cbootimage -t124 jetson-tk1-emmc.img.cfg jetson-tk1-emmc.img
Image file jetson-tk1-emmc.img has been successfully generated!


If any error occurs a non zero exit status is returned.