制作根文件系统失败

1.使用系统自带的gen_ext4.sh，里面用的是mke2fs
2.要制作的文件系统大小超过200M
3.出现一下问题：
The file already exists. Continuing will overwrite this file.
Continue? (y/n): y
image_size:387911914
0+0 records in
0+0 records out
0 bytes copied, 0.000924193 s, 0.0 kB/s
mke2fs 1.46.5 (30-Dec-2021)
Discarding device blocks: done
Creating filesystem with 94705 4k blocks and 94752 inodes
Filesystem UUID: a4f61d38-b7eb-4fdd-8327-4e57891d3286
Superblock backups stored on blocks:
32768

Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Copying files into the device: __populate_fs: Could not allocate block in ext2 filesystem while writing file “ts_print”
mke2fs: Could not allocate block in ext2 filesystem while populating file system