nvidia jetson partition table

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[링크 : https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/bootflow_jetson_xavier.html#]

 

Jetson Nano Development Module (P3448-0000) Flashed to Micro SD Card

NameTypeAlloc PolicyFS TypeSizeFS AttributeAlloc AttributeReservedFilenameDescription

GP1	GP1	sequential	basic	2097152	0	8	0 %		Required. Contains primary GPT of the sdcard device. All partitions defined after this entry are configured in the kernel, and are accessible by standard partition tools such as gdisk and parted.
APP	data	sequential	basic	APPSIZE	0	0x8	0 %	APPFILE	Required. Contains the rootfs. This partition must be defined after primary_GPT so that it can be accessed as the fixed known special device /dev/mmcblk0p1.
TXC	TBCTYPE	sequential	basic	131072	0	8	0 %	TBCFILE	Required. Contains TegraBoot CPU-side binary.
RP1	data	sequential	basic	458752	0	0x8	0 %	DTBFILE	Required. Contains Bootloader DTB binary.
EBT	bootloader	sequential	basic	589824	0	8	0 %	EBTFILE	Required. Contains CBoot, the final boot stage CPU bootloader binary that loads the binary in the kernel partition..
WX0	WB0TYPE	sequential	basic	65536	0	8	0 %	WB0FILE	Required. Contains warm boot binary.
BXF	data	sequential	basic	196608	0	8	0 %	BPFFILE	Required. Contains SC7 entry firmware.
BXF-DTB	data	sequential	basic	393216	0	8	0 %	BPFDTB-FILE	Optional. Reserved for future use by BPMP DTB binary; can't remove.
FX	FBTYPE	sequential	basic	65536	0	0x8	0 %	FBFILE	Optional. Reserved for fuse bypass; removeable.
TXS	data	sequential	basic	458752	0	8	0 %	TOSFILE	Required. Contains TOS binary.
DXB	data	sequential	basic	458752	0	0x8	0 %	DTBFILE	Required. Contains kernel DTB binary.
LNX	data	sequential	basic	786432	0	0x8	0 %	LNXFILE	Required. Contains U-Boot, which loads and launches the kernel from the rootfs at /boot.
EXS	data	sequential	basic	65536	0	8	0 %	EKSFILE	Optional. Contains the encrypted keys.
BMP	data	sequential	basic	81920	0	0x8	0 %	bmp.blob	Optional. Contains BMP images for splash screen display during boot.
RP4	data	sequential	basic	131072	0	0x8	0 %	rp4.blob	Required. Contains XUSB module’s firmware file, making XUSB a true USB 3.0 compliant host controller.
GPT	GPT	sequential	basic	2097152	0	8	0 %		Required. Contains secondary GPT of the sdcard device.

[링크 : https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra Linux Driver Package Development Guide/part_config.html#]

 

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22.04.07

BootROM (BR)  Boot Configuration Table (BCT) bootloader (BL) [링크 : https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/bootflow_jetson_nano.html#wwpID0E02B0HA] boot-file-set (BFS) kernel-file-set (KFS)  [링크 : https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/bootloader_update_nano_tx1.html] EKB or EKS: Encrypted keyblob, an encrypted blob which holds developer-defined content [링크 : https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/trusty.html] 1.Boot partitions, which are used in the boot process, and are visible only to Bootloader. Many of the boot partitions have redundant copy partitions. The copy partitions must have the same names as their primaries with the suffix ‘‑1’. For example, the NVC partition’s copy must be named NVC‑1. The boot partitions are: •BCT, which contains redundant instances of the Boot Configuration Table. This must be the first partition on the boot device. •NVC contains TegraBoot. This must be the second boot partition. The following boot partitions, PT through SPF, are part of the BFS. •PT contains layout information for each BFS, and indicates the beginning of each one. It is the first partition in the BFS. •TBC contains the TegraBoot CPU-side binary. •RP1 contains TegraBoot DTBs. •EBT contains CBoot. •WB0 contains the warm boot binary. •BPF contains BPMP microcode. •NVC‑1 contains a copy of NVC. •PT‑1 through BPF‑1 are copy partitions for the primaries NVC through BPF, making up a copy of the BFS, denoted BFS‑1. •PAD is an empty partition which ensures the VER and VER_b are at the very end of the boot partition. •VER_b contains additional version information for redundancy and version checking. •VER contains version information. 2.GP1 contains the sdmmc_user device’s primary GPT. All partitions defined after this one are configured in the Linux kernel, and are accessible by standard partition tools such as gdisk and parted. 3.User partitions, which have a variety of uses. Some of them may be deleted, and/or may be mounted and used to store application files. The following partitions constitute the kernel-file-set (KFS), and have redundant copy partitions: •DTB contains kernel DTBs. •TOS contains the trusted OS binary. •EKS is optional, and is reserved for future use. •LNX contains either the Linux kernel or U-Boot, depending on your choice of DFLT_KERNEL_IMAGE in the configuration file. •DTB‑1 through EKS‑1 constitute a copy of the primary KFS, denoted KFS‑1. •Other partitions, such as APP and BMP, are outside the scope of this document. For information about these partitions, see the appropriate subsection for your Jetson platform in Default Partition Overview. Kernel-file-set (KFS) [링크 : https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/bootloader_update_nano_tx1.html#]