L4t添加新的分区后编译失败

[qiaowei]

我修改了tools/kernel_flash/flash_l4t_external.xml，添加了一个userdata分区：

<partition_layout version="01.00.0000">
    <device type="external" instance="0" sector_size="512" num_sectors="EXT_NUM_SECTORS" >
        <partition name="master_boot_record" type="protective_master_boot_record">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 512 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
        </partition>
        <partition name="primary_gpt" type="primary_gpt">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 19968 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
        </partition>
        <partition name="A_kernel" id="3" type="kernel">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 134217728 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <filename> LNXFILE </filename>
        </partition>
        <partition name="A_kernel-dtb" type="kernel_dtb">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 786432 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <filename> DTB_FILE </filename>
        </partition>
        <partition name="A_reserved_on_user" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 33161216 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
        </partition>
        <partition name="B_kernel" type="kernel">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 134217728 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <filename> LNXFILE </filename>
        </partition>
        <partition name="B_kernel-dtb" type="kernel_dtb">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 786432 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <filename> DTB_FILE </filename>
        </partition>
        <partition name="B_reserved_on_user" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 33161216 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
        </partition>
        <partition name="RECNAME" type="kernel">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> RECSIZE </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <filename> RECFILE </filename>
        </partition>
        <partition name="RECDTB-NAME" type="kernel_dtb">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 524288 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <filename> RECDTB-FILE </filename>
        </partition>
        <partition name="esp" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 67108864 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 0x8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <filename> ESP_FILE </filename>
            <partition_type_guid> C12A7328-F81F-11D2-BA4B-00A0C93EC93B </partition_type_guid>
            <description> **Required.** EFI system partition with L4T Launcher. </description>
        </partition>
        <partition name="RECNAME_alt" type="kernel">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> RECSIZE </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
        </partition>
        <partition name="RECDTB-NAME_alt" type="kernel_dtb">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 524288 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
        </partition>
        <partition name="esp_alt" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 67108864 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 0x8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <description> **Required.** EFI system partition for fail-safe ESP update. </description>
        </partition>
        <partition name="UDA" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 419430400 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <align_boundary> 16384 </align_boundary>
            <description> **Required.** This partition may be mounted and used to store user
              data. </description>
        </partition>
        <partition name="reserved" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 502792192 </size> <!-- Recalculate the size if RECSIZE changed -->
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
            <description> **Required.** Reserve space in case there is any partition change
              required in the future, for example, adding new partitions or increasing size
              of some partitions. </description>
        </partition>
        <partition name="APP" id="1" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> APPSIZE </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 0x808 </allocation_attribute>
            <align_boundary> 16384 </align_boundary>
            <percent_reserved> 0 </percent_reserved>
            <unique_guid> APPUUID </unique_guid>
            <filename> APPFILE </filename>
            <description> **Required.** Contains the rootfs. This partition must be assigned
              the "1" for id as it is physically put to the end of the device, so that it
              can be accessed as the fixed known special device `/dev/nvme0n1p1`. </description>
        </partition>
        <partition name="userdata" id="2" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 115964116992 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 0x808 </allocation_attribute>
            <align_boundary> 16384 </align_boundary>
            <percent_reserved> 0 </percent_reserved>
            <description> **Required.**  overlayfs </description>
        </partition>
        <partition name="secondary_gpt" type="secondary_gpt">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 0xFFFFFFFFFFFFFFFF </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 8 </allocation_attribute>
            <percent_reserved> 0 </percent_reserved>
        </partition>
    </device>
</partition_layout>

并且修改了p3767.conf.common文件中ROOTFSSIZE=8GiB;
然后执行下面命令报错：
BOARDID=3701 BOARDSKU=0000 FAB=TS4 ./tools/kernel_flash/l4t_initrd_flash.sh -c tools/kernel_flash/flash_l4t_external.xml --external-device nvme0n1p1 --direct sdd jetson-orin-nano-devkit external

[   7.0648 ] Disabled BPMP dtb trim, using default dtb
[   7.0648 ] 
[   7.0655 ] tegrahost_v2 --chip 0x23 0 --align mem_rcm_aligned.bct
[   7.0668 ] tegrahost_v2 --chip 0x23 0 --magicid MEM0 --ratchet_blob ratchet_blob.bin --appendsigheader mem_rcm_aligned.bct zerosbk
[   7.0671 ] adding BCH for mem_rcm_aligned.bct
[   7.0712 ] tegrasign_v3.py --key None --list mem_rcm_aligned_sigheader.bct_list.xml --pubkeyhash pub_key.key --sha sha512
[   7.0713 ] Assuming zero filled SBK key
[   7.0730 ] Warning: pub_key.key is not found
[   7.0723 ] tegrahost_v2 --chip 0x23 0 --updatesigheader mem_rcm_aligned_sigheader.bct.encrypt mem_rcm_aligned_sigheader.bct.hash zerosbk
[   7.0735 ] Copying signatures
[   7.0740 ] tegrahost_v2 --chip 0x23 0 --partitionlayout flash.xml.bin --updatesig images_list_signed.xml
[   7.0751 ] tegraparser_v2 --generategpt --pt flash.xml.bin
[   7.0755 ] End sector for userdata, expected at: 119537630, actual: 0
Error: Return value 4
Command tegraparser_v2 --generategpt --pt flash.xml.bin
Error: /home/user/EC5000/Linux_for_Tegra/bootloader/signed/flash.idx is not found
Error: failed to relocate images to /home/user/EC5000/Linux_for_Tegra/tools/kernel_flash/images
Cleaning up...

请问是什么原因？

[DaveYYY]

@qiaowei

        <partition name="userdata" id="2" type="data">
            <allocation_policy> sequential </allocation_policy>
            <filesystem_type> basic </filesystem_type>
            <size> 115964116992 </size>
            <file_system_attribute> 0 </file_system_attribute>
            <allocation_attribute> 0x808 </allocation_attribute>
            <align_boundary> 16384 </align_boundary>
            <percent_reserved> 0 </percent_reserved>
            <description> **Required.**  overlayfs </description>
        </partition>

你想要108GB？
tools/kernel_flash/flash_l4t_external.xml燒的時候假設整個disk只有64GB，你寫超過邊界當然失敗
麻煩參考這一篇手動指定sector size

How do I downgrade from Jetpack 6DP to JetPack 5 on Jetson Orin Nano Dev Kit (SD Card)

Hi, As you can see in the help message of flash.sh: -T <ext num sectors> ---The number of the sectors of the external storage device. The default value is 122159104 if this option is not set. , both of your two cards are actually smaller than the required size. You have to manually run scripts instead of SDK Manager to avoid this, and the regular flashing command looks like: sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device mmcblk1p1 \ …

[qiaowei]

我在jetson-orin-nano-devkit.conf文件中添加了一行：EXT_NUM_SECTORS=250069680
执行之前的命令还是一样的错误信息，好像是APP分区用了全部剩余的磁盘？

[DaveYYY]

你只能有一個partition是0x808
把APP改成0x8再試試看

[qiaowei]

现在添加的分区有了，还有另一个问题请教下：
我需要在initrd里面把userdata分区作为overlayfs的upper，在/dev/目录没有找到任何nvme设备，请问如何显示nvme设备？

[DaveYYY]

麻煩開新的topic問