如何格式化刻录的dvd (r+w)

Question

我想在ubuntu....Thus中格式化一个刻录的dvd，我尝试了很多使用各种选项，例如

cdrecord dev=/dev/sr0 blank=fast

但它的工作错误是(我使用的是ubuntu 20.04)

wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.
Error trying to open /dev/sr0 exclusively (Device or resource busy)... retrying in 1 second.
Error trying to open /dev/sr0 exclusively (Device or resource busy)... retrying in 1 second.
Error trying to open /dev/sr0 exclusively (Device or resource busy)... retrying in 1 second.
Error trying to open /dev/sr0 exclusively (Device or resource busy)... retrying in 1 second.
Error trying to open /dev/sr0 exclusively (Device or resource busy)... giving up.
WARNING: /dev/sr0 seems to be mounted!
wodim: Device or resource busy. 
Cannot open SCSI driver!
For possible targets try 'wodim --devices' or 'wodim -scanbus'.
For possible transport specifiers try 'wodim dev=help'.
For IDE/ATAPI devices configuration, see the file README.ATAPI.setup from
the wodim documentation.

有人能提出最好的解决方案来格式化已经烧坏的dvd(r+w)吗？

Answer 1

“设备或资源繁忙”听起来像是安装了DVD上的文件系统，警告中也提到了这一点。以前做过umount /dev/sr0。