Under Solaris, umount come does not allow a file system to be unmounted if a file on the file system is busy i.e. open by other programs/process or by user. You will get device busy error. To get rid of this message you can pass -f option to umount command. Suppose you would like to forcefully unmount a /cdrom/cdrom0 then you can type following command (login as a root user):
# umount -f /cdrom/cdrom0

Please note that using this option can cause data loss for open files; program(s) which access files after the file system has been unmounted will get an error.


🐧 Get the latest tutorials on Linux, Open Source & DevOps via RSS feed or Weekly email newsletter.

🐧 1 comment so far... add one

CategoryList of Unix and Linux commands
Disk space analyzersncdu pydf
File Managementcat
FirewallAlpine Awall CentOS 8 OpenSUSE RHEL 8 Ubuntu 16.04 Ubuntu 18.04 Ubuntu 20.04
Network UtilitiesNetHogs dig host ip nmap
OpenVPNCentOS 7 CentOS 8 Debian 10 Debian 8/9 Ubuntu 18.04 Ubuntu 20.04
Package Managerapk apt
Processes Managementbg chroot cron disown fg jobs killall kill pidof pstree pwdx time
Searchinggrep whereis which
User Informationgroups id lastcomm last lid/libuser-lid logname members users whoami who w
WireGuard VPNAlpine CentOS 8 Debian 10 Firewall Ubuntu 20.04
1 comment… add one
  • Kevin Jun 27, 2007 @ 22:54

    The force option is only available on Solaris 8 and above.

Leave a Reply

Your email address will not be published.

Use HTML <pre>...</pre> for code samples. Still have questions? Post it on our forum