Backup restore ,mount: wrong fs type, bad superblock on /dev/nvme0n1p15 on jetpack 5.1.4/5/6

sudo ./tools/backup_restore/l4t_backup_restore.sh -e nvme0n1 -b jetson-orin-nano-devkit

mount: /mnt/images/tmp/tmp: wrong fs type, bad option, bad superblock on /dev/nvme0n1p15, missing codepage or helper program, or other error.

check:

jetpack 5.1.2 The largest is nvme0n1p14

jetpack 5.1.4/5/6 The largest is nvme0n1p15

Hard Disk Partition Type

nvme0n1p1 nvme0n1p15 ext4

nvme0n1p2……nvme0n1p14 none

Hi,

Do you mean that you’ve created multiple ext4 partitions and want to back them up or restore them?

Thanks

It’s not the nvme0n1p15 I created. It’s our newly released version. Compared to previous versions, the Jetson product has an additional partition. This causes an error when generating the image. You can use this command to generate the image yourselves.

Hi,

We dont observe 2 ext4 partitions in our developer kit.

  • Are you using the custom carrier boards?

Please provide the flashing commands for us to review.

这是系统信息,有2个ext4。

Hi,

Could you run below commands under the /dev/disk/by-partlabel
Do you fuse your device?

ls -alh

Thanks

发件人:"DavidDDD "notifications@nvidia.discoursemail.com;
发送时间:2026年4月10日(星期五) 下午3:48
收件人:“dufutian” dufutian@zhiyongxingkong.com;
主题:[NVIDIA Developer Forums] [Jetson Systems/Jetson Orin NX] Backup restore ,mount: wrong fs type, bad superblock on /dev/nvme0n1p15 on jetpack 5.1.4/5/6

(attachments)

Hi,

Do you have disk encryption enabled?
Please provide the commands used to flash the device

Thanks

nvidia@nvidia-ThinkPad-X250:~/Downloads/35.6.4/Linux_for_Tegra$ sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 -c tools/kernel_flash/flash_l4t_external.xml -p “-c bootloader/t186ref/cfg/flash_t234_qspi.xml” --showlogs --network usb0 jetson-orin-nano-devkit internal

Hi,

We cannot reproduce two ext4 issue to flash our developer kit on version r35.6.4.
Do you have disk encryption enabled?

$ lsblk -f
NAME         FSTYPE LABEL      UUID                                 FSAVAIL FSUSE% MOUNTPOINT
loop0        vfat   L4T-README 1234-ABCD                                           
zram0                                                                              [SWAP]
zram1                                                                              [SWAP]
zram2                                                                              [SWAP]
zram3                                                                              [SWAP]
zram4                                                                              [SWAP]
zram5                                                                              [SWAP]
nvme0n1                                                                            
├─nvme0n1p1  ext4              52219493-35cc-4546-aa6f-cd14885e1687  442.4G     1% /
├─nvme0n1p2                                                                        
├─nvme0n1p3                                                                        
├─nvme0n1p4                                                                        
├─nvme0n1p5                                                                        
├─nvme0n1p6                                                                        
├─nvme0n1p7                                                                        
├─nvme0n1p8                                                                        
├─nvme0n1p9                                                                        
├─nvme0n1p10                                                                       
├─nvme0n1p11 vfat              CE42-CDB5                                           
├─nvme0n1p12                                                                       
├─nvme0n1p13                                                                       
├─nvme0n1p14                                                                       
└─nvme0n1p15                                                                       

$ ls -lah /dev/disk/by-partlabel
total 0
drwxr-xr-x 2 root root 340 Jun 17  2024 .
drwxr-xr-x 8 root root 160 Jun 17  2024 ..
lrwxrwxrwx 1 root root  15 Jan  1  1970 APP -> ../../nvme0n1p1
lrwxrwxrwx 1 root root  15 Jan  1  1970 A_kernel -> ../../nvme0n1p2
lrwxrwxrwx 1 root root  15 Jan  1  1970 A_kernel-dtb -> ../../nvme0n1p3
lrwxrwxrwx 1 root root  15 Jan  1  1970 B_kernel -> ../../nvme0n1p5
lrwxrwxrwx 1 root root  15 Jan  1  1970 B_kernel-dtb -> ../../nvme0n1p6
lrwxrwxrwx 1 root root  16 Jan  1  1970 RECROOTFS -> ../../nvme0n1p10
lrwxrwxrwx 1 root root  16 Jan  1  1970 UDA -> ../../nvme0n1p15
lrwxrwxrwx 1 root root  16 Jan  1  1970 esp -> ../../nvme0n1p11
lrwxrwxrwx 1 root root  16 Jan  1  1970 esp_alt -> ../../nvme0n1p14
lrwxrwxrwx 1 root root  15 Jan  1  1970 recovery -> ../../nvme0n1p8
lrwxrwxrwx 1 root root  15 Jan  1  1970 recovery-dtb -> ../../nvme0n1p9
lrwxrwxrwx 1 root root  16 Jan  1  1970 recovery-dtb_alt -> ../../nvme0n1p13
lrwxrwxrwx 1 root root  16 Jan  1  1970 recovery_alt -> ../../nvme0n1p12
lrwxrwxrwx 1 root root  15 Jan  1  1970 reserved_for_chain_A_user -> ../../nvme0n1p4
lrwxrwxrwx 1 root root  15 Jan  1  1970 reserved_for_chain_B_user -> ../../nvme0n1p7

Thanks