@freeor 这个是日志

MBR addr = 0x8000,logic_offset = 0xa000 GPT:env : 12000 19fff
MBR addr = 0x10000,logic_offset = 0xa000 GPT:UDISK : 1a000 ffffffde
gpt_head->header_crc32 = 0x599a802b
GPT----part num 2---
gpt_entry: 128
gpt_header: 92
GPT:env : 12000 19fff
GPT:UDISK : 1a000 ffffffde
update gpt file ok
update mbr file ok
dragon: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory

apt install libstdc++6

Reading package lists... Done
Building dependency tree
Reading state information... Done
libstdc++6 is already the newest version (10.5.0-1ubuntu1~20.04).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.