Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Stack Overflow for Teams is now called Stack Internal. Bring the best of human thought and AI automation together at your work.
Bring the best of human thought and AI automation together at your work. Learn more
Stack Internal
Knowledge at work
Bring the best of human thought and AI automation together at your work.
instead of device (/dev/sr0) name try using mount point (in your case mount point is /mem)
/dev/sr0
/mem
So just use for mount:
mount /mem
For unmount use :
umount /mntmem
I have tested and Working in my side, OS is CentOS 5.8
umount /mnt
umount /mem