If that’s too much physical labor, you can also re-mount the DVD from the command line, and then eject it as described in the previous paragraph, but I haven’t looked into the mount command (or commands) yet. After you plug it back in, MacOS will mount it for you, and then you can press the Eject button on your keyboard, the Eject button on the DVD drive itself, or the Eject icon in the Finder. Give that a try first.Īssuming that doesn’t work, and you’re using an external drive, another simple process is to briefly unplug the DVD drive from your system, and then plug it back in. This step depends on the DVD player you’re using, but if you’re lucky you may just be able to press the Eject button on your keyboard. Because you unmounted the DVD, you have to do something to eject the DVD from the DVD drive. You can also try other options with the dd command, such as trying to control the block size, but I’ve found that the default command runs faster than any block size command arguments I’ve tried. If the size is identical, it's easy: sha1sum orig.iso copy.iso. Then you check if copy.iso and orig.iso have the same size, for example with: stat -c 's n' orig.iso copy.iso. I’ve been backing up a few DVDs today using an external USB 2.0 DVD drive, and I’ve found that the process takes 30-60 minutes, depending on the size/contents of the DVD. First, you rip your CD to a temporary file: dd if/dev/sr0 ofcopy.iso. But sometimes it is much more economic to give this job to somebody which is fluent in Linux and Postgres administration - it would cost you for example 60 but it will be done in an hour. Once you hit, the backup process will start. You could copy data directory from backup CD (in my RPM based distributions it is in /var/lib/pgsql) to virtual machine and then use pgdumpall. Because my identifier is disk2, I use this command to unmount my drive:
Linux copy cd to iso iso#
The next thing you need to do is to unmount the CD/DVD drive. IsoCreator (could also be called Folder-to-ISO or Directory-to-ISO) C.NET 2.0 application which creates ISO 9660 Joliet CD images from a given folder or volume. That’s all you need to know for this step. This means that the device that the Mac/Unix system uses to communicate with the DVD drive is /dev/disk2.
![linux copy cd to iso linux copy cd to iso](https://linoxide.com/wp-content/uploads/2020/11/create-bootable-usb-iso-linux-terminal.png)
In my case, the last entry is the entry for my DVD drive - which you can tell in a variety of ways, including the words external and DVD, as well as the size - and the identifier is disk2.
![linux copy cd to iso linux copy cd to iso](https://www.ubackup.com/screenshot/en/std/tools/create-bootable-media/export-iso-file.png)
2: Apple_CoreStorage MacOS 499.4 GB disk0s2ģ: Apple_Boot Recovery HD 650.0 MB disk0s3