I'm executing those commands:

mkfs.msdos -C path/to/file/some_file.img 1440

sudo mount -o loop path/to/file/some_file.img /path/to/folder/mounted_folder

After those commands, I copy files to mounted_folder and upload the some_file.img file to NFS server.

I do it all in Ansible and it happened so fast that some_file.img uploaded empty.

I gave it a 5-minute delay and the some_file.img was good (with content in it).

I don't want to do it with delay, there is any command I can use to ensure that the some_file.img file will upload with the content in it (and not be empty)?

CodePudding user response：

Unmount the directory when you're finished to ensure everything is flushed to disk.

sudo umount /path/to/folder/mounted_folder