Please note that using these commands or options can cause data loss for open files programs which access files after the file system has been unmounted will get an error. -f: Force unmount in case of an unreachable NFS system.If you would like to unmount a NFS mount point then try following command: This option works with kernel version 2.4.11+ and above only. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. You can also try the umount command with –l option on a Linux based system: Linux umount command to unmount a disk partition. -m : Name specifies a file on a mounted file system or a block device that is mounted.-k : Kill processes accessing the file.Type the command to unmount /mnt forcefully: WARNING! These examples may result into data loss if not executed properly (see “ Understanding device error busy error” for more information). Suppose you have /dev/sda1 mounted on /mnt directory then you can use fuser command as follows: Linux fuser command to forcefully unmount a disk partition The following discussion allows you to unmout device and partition forcefully using mount or fuser Linux commands. # umount /dev/sda1 How do I list the users on the file-system /nas01/? As soon as that program terminates its task, the device will no longer be busy and you can unmount it with the following command: All you have to do is stop vi process and run umount again. This is the first time Ive encountered an. I know these devices are prone to harddrive problems, especially late in their life. iPod Classic restore, Cannot unmount disk. Output: vi 4453 vivek 3u BLK 8,1 8167 /dev/sda1Ībove output tells that user vivek has a vi process running that is using /dev/sda1. iPod Classic restore, Cannot unmount disk. If your device name is /dev/sdb1, enter the following command as root user: Try the following command to find out what processes have activities on the device/partition.
There are many reasons for this (such as program accessing partition or open file), but the most important one is to prevent the data loss. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.Linux / UNIX will not allow you to unmount a device that is busy. If you have any idea to get the HDD working or even safe the files, I would be really grateful.Īlmost forgot about this from Disk Utility:ĭisk Utility can’t repair this disk. This was the try: $ sudo diskutil eraseDisk JHFS+ DISK_VOLUME disk1īut it didn't work as well. Than for each disk: $sudo diskutil unmount force disk1snīecause I wasn't able to do anything with my external HDD I made a desperate attempt to erase everything on it, including unbackuped files, cause this used to be the backup plan. Gave this: Forced unmount of disk1 failed: at least one volume could not be unmounted
If I open it in disk util I sometimes see an actual name of a partition, but most likely it's not the real name.Ģ: Apple_HFS Macintosh HD 140.0 GB disk0s2ģ: Apple_Boot Recovery HD 650.0 MB disk0s3Ĥ: Microsoft Basic Data BOOTCAMP 110.1 GB disk0s4Īnd then to unmount this: $sudo diskutil unmountDisk force disk1 My 1TB LaCie Rugged THB decided it was a good idea to stop working all of a sudden.
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