[OnePlus 8 Pro  Guides, News, & Discussion] osm0sis:
Works fine for me:

:/ $ cd sdcard
:/sdcard $ cd Download
:/sdcard/Download $ su
:/storage/emulated/0/Download # payload-dumper-go miui_ODIN_V12.5.4.0.RKMCNXM_eacb5c9e71_11.0.zip
Please wait while extracting payload.bin from the archive.
payload.bin: payload_844201002.bin
Payload Version: 2
Payload Manifest Length: 174938
Payload Manifest Signature Length: 267
Found partitions:
abl (209 kB), aop (246 kB), bluetooth (1.1 MB), boot (201 MB), cpucp (106 kB), devcfg (53 kB), dsp (67 MB), dtbo (17 MB), featenabler (90 kB), hyp (3.7 MB), imagefv (2.1 MB), keymaster (266 kB), modem (211 MB), odm (18 MB), product (267 MB), qupfw (57 kB), shrm (49 kB), system (2.9 GB), system_ext (329 MB), tz (3.8 MB), uefisecapp (127 kB), vbmeta (8.2 kB), vbmeta_system (4.1 kB), vendor (2.2 GB), vendor_boot (101 MB), xbl (3.7 MB), xbl_config (221 kB)
Number of workers: 4
abl (209 kB) [===============================] 100 %
bluetooth (1.1 MB) [===============================] 100 %
aop (246 kB) [===============================] 100 %
boot (201 MB) [===============================] 100 %
cpucp (106 kB) [===============================] 100 %
devcfg (53 kB) [===============================] 100 %
dsp (67 MB) [===============================] 100 %
dtbo (17 MB) [===============================] 100 %
featenabler (90 kB) [===============================] 100 %
hyp (3.7 MB) [===============================] 100 %
imagefv (2.1 MB) [===============================] 100 %
keymaster (266 kB) [===============================] 100 %
modem (211 MB) [===============================] 100 %
odm (18 MB) [===============================] 100 %
product (267 MB) [===============================] 100 %
qupfw (57 kB) [===============================] 100 %
shrm (49 kB) [===============================] 100 %
system (2.9 GB) [===============================] 100 %
system_ext (329 MB) [===============================] 100 %
tz (3.8 MB) [===============================] 100 %
uefisecapp (127 kB) [===============================] 100 %
vbmeta (8.2 kB) [===============================] 100 %
vbmeta_system (4.1 kB) [===============================] 100 %
vendor (2.2 GB) [===============================] 100 %
vendor_boot (101 MB) [===============================] 100 %
xbl (3.7 MB) [===============================] 100 %
xbl_config (221 kB) [===============================] 100 %
:/storage/emulated/0/Download #

Android Image Kitchen - UnpackImg Script
by osm0sis @ xda-developers

Supplied image: boot.img

Setting up work folders...

Image type: AOSP

Signature with "AVBv2" type detected.

Splitting image to "split_img/"...
ANDROID! magic found at: 0
BOARD_KERNEL_CMDLINE
BOARD_PAGE_SIZE 4096
BOARD_OS_VERSION 11.0.0
BOARD_OS_PATCH_LEVEL 2021-07
BOARD_HEADER_VERSION 3
BOARD_HEADER_SIZE 1580

Unpacking ramdisk to "ramdisk/"...

Compression used: gzip
75878 blocks

Done!

Android Image Kitchen - UnpackImg Script
by osm0sis @ xda-developers

Supplied image: vendor_boot.img

Setting up work folders...

Image type: AOSP_VNDR

Signature with "AVBv2" type detected.

Splitting image to "split_img/"...
VNDRBOOT magic found at: 0
BOARD_VENDOR_CMDLINE console=ttyMSM0,115200n8 androidboot.hardware=qcom androidboot.console=ttyMSM0 androidboot.memcg=1 lpm_levels.sleep_disabled=1 video=vfb:640x400,bpp=32,memsize=3072000 msm_rtb.filter=0x237 service_locator.enable=1 androidboot.usbcontroller=a600000.dwc3 swiotlb=0 loop.max_part=7 cgroup.memory=nokmem,nosocket pcie_ports=compat loop.max_part=7 iptable_raw.raw_before_defrag=1 ip6table_raw.raw_before_defrag=1 buildvariant=user
BOARD_VENDOR_BASE 0x00000000
BOARD_NAME
BOARD_PAGE_SIZE 4096
BOARD_KERNEL_OFFSET 0x00008000
BOARD_RAMDISK_OFFSET 0x01000000
BOARD_TAGS_OFFSET 0x00000100
BOARD_HEADER_VERSION 3
BOARD_HEADER_SIZE 2112
BOARD_DTB_SIZE 5150147
BOARD_DTB_OFFSET 0x01f00000

Unpacking ramdisk to "ramdisk/"...

Compression used: gzip
15427 blocks

Done!