[quote][size=2][url=forum.php?mod=redirect&goto=findpost&pid=127740&ptid=26954][color=#999999]蒙牛小脆皮 发表于 2025-5-31 20:37[/color][/url][/size]
不是我随口问一句
问：换个刷飞牛系统可以提供完整固件刷回来不？
官方：不可以哈。
[/quote]
折腾前先备份是个好习惯
# 备份绿联的系统盘和引导区
sudo dd if=/dev/mmcblk0boot0 bs=4M status=progress | gzip --stdout > mmcblk0boot0.img.gz
sudo dd if=/dev/mmcblk0boot1 bs=4M status=progress | gzip --stdout > mmcblk0boot1.img.gz
sudo dd if=/dev/mmcblk0 bs=4M status=progress | gzip --stdout > mmcblk0-DXP4800.img.gz
# 恢复绿联的系统盘
sudo gzip --decompress --stdout mmcblk0-DXP4800.img.gz | sudo dd of=/dev/mmcblk0 bs=4M conv=fsync status=progress
扒一下系统盘细节
# 列出所有可用块设备的信息
lsblk
#########################################################################
#
# NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
# mmcblk0 179:0 0 29.1G 0 disk
# **─mmcblk0p1 179:1 0 256M 0 part
# **─mmcblk0p2 179:2 0 2G 0 part
# **─mmcblk0p3 179:3 0 10M 0 part
# **─mmcblk0p4 179:4 0 2G 0 part
# **─mmcblk0p5 179:5 0 2G 0 part
# **─mmcblk0p6 179:6 0 4G 0 part
# **─mmcblk0p7 179:7 0 18.9G 0 part
# **─mmcblk0p128 259:0 0 239K 0 part
# mmcblk0boot0 179:8 0 4M 1 disk
# mmcblk0boot1 179:16 0 4M 1 disk
#
#########################################################################
# 查看当前系统的分区情况
sudo fdisk -l
#########################################################################
#
# Disk /dev/mmcblk0: 29.12 GiB, 31268536320 bytes, 61071360 sectors
# Units: sectors of 1 * 512 = 512 bytes
# Sector size (logical/physical): 512 bytes / 512 bytes
# I/O size (minimum/optimal): 512 bytes / 512 bytes
# Disklabel type: gpt
# Disk identifier: 99009E79-D999-A659-32E5-993BFB698A00
#
# Device Start End Sectors Size Type
# /dev/mmcblk0p1 512 524799 524288 256M Linux filesystem
# /dev/mmcblk0p2 524800 4719103 4194304 2G Linux filesystem
# /dev/mmcblk0p3 4720640 4741119 20480 10M Linux filesystem
# /dev/mmcblk0p4 4741120 8935423 4194304 2G Linux filesystem
# /dev/mmcblk0p5 8935424 13129727 4194304 2G Linux filesystem
# /dev/mmcblk0p6 13129728 21518335 8388608 4G Linux filesystem
# /dev/mmcblk0p7 21518336 61071326 39552991 18.9G Linux filesystem
# /dev/mmcblk0p128 34 511 478 239K BIOS boot
#
# Partition table entries are not in disk order.
#
#
# Disk /dev/mmcblk0boot0: 4 MiB, 4194304 bytes, 8192 sectors
# Units: sectors of 1 * 512 = 512 bytes
# Sector size (logical/physical): 512 bytes / 512 bytes
# I/O size (minimum/optimal): 512 bytes / 512 bytes
#
#
# Disk /dev/mmcblk0boot1: 4 MiB, 4194304 bytes, 8192 sectors
# Units: sectors of 1 * 512 = 512 bytes
# Sector size (logical/physical): 512 bytes / 512 bytes
# I/O size (minimum/optimal): 512 bytes / 512 bytes
#
#########################################################################
2025-5-27 23:27:06
2025-5-30 10:41:37 楼主
。