mount: /home/dd/hdc: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error.
       dmesg(1) may have more information after failed mount system call.

vi Microsoft/config-wsl

# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_MINIX_FS is not set
改成
CONFIG_MINIX_SUBPARTITION=y
CONFIG_MINIX_FS=y

make KCONFIG_CONFIG=Microsoft/config-wsl -j$(noproc)

[wsl2]
kernel=D:\\tmp\\bzImage

# 查看第一个空闲 loop 设备 
losetup -f  
# 使用上一步得到的设备名，第一次创建 loop 设备
losetup /dev/loop0 hdc-0.11.img
# 查看信息 
fdisk -lu /dev/loop0 
kpartx -av /dev/loop0
mount /dev/mapper/loop0p1 /mnt