Hardware Reference
In-Depth Information
GPU Memory (512)
The
gpu_mem_512
option configures the GPU memory allocated for the 512 MB Raspberry
Pi boards. When specified, it overrides the
gpu_mem
option setting.
gpu_mem_512
Description
unspecified
Defined by gpu_mem option
gpu_mem_512=128
128 MB (example)
Boot Options
Several options in this section affect the boot process. Many options pertain to the kernel
being started, while others affect file systems and devices.
Disable Command-Line Tags
The
disable_commandline_tags
option permits the user to prevent
start.elf
from
filling in ATAGS memory before launching the kernel. This prevents the
cmdline.txt
file
from being supplied to the kernel at boot time.
disable_commandline_tags
Description
0
Enable ATAGS (default)
1
Disable command line in ATAGS
Command Line
The
cmdline
option allows you to configure the kernel command-line parameters within
the
config.txt
file, instead of the
cmdline.txt
file.
cmdline
Description
Command line is taken from
cmdline.txt
unspecified
cmdline=“command”
Command line is taken from parameter
