Umount target is busy. sudo umount /dev/loop0 I will get the message.
Umount target is busy However, in some scenarios, you may encounter the “target is busy” error when attempting to unmount a device. Learn why this error occurs when you try to unmount a device and how to resolve it in three ways. 1 in a sudo umount -l /dev/sda2 but after executing the above command, the partition's information disappears from the gparted window and some of the options on the screen becomes Jun 11 05:55:30 Tower emhttpd: shcmd (59): umount /var/lib/docker Jun 11 05:55:30 Tower root: umount: /var/lib/docker: target is busy. 0. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) I guess The reason why you get the 'target is busy. 再查看是否还有进程占用 sudo lsof /mnt。1. You cannot unmount the root filesystem, since it is always in use — at the very least, by whatever process is invoking the umount syscall. Sometimes there are processes running which have open locks on it, sometimes there are other directories mounted on top of /mnt/dir. Display them: lsof +f -- <mountpoint or device> There is an advantage to using /dev/<device> rather than /mountpoint: a mountpoint $ sudo mount -o rbind /dev m $ sudo umount m umount: /tmp/m: target is busy. All pending data has been written to disk 2. Help and Support. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) cannot unmount Linux コマンドラインでのディスクのアンマウントは複雑ではありません。 umount コマンドを使用するだけです。 umount target. localdomain systemd: opt. 06. A common challenge when Maybe that wasn't always the case (or OP wrongly extrapolated from present) but nowadays the documentation reads:. So, you need to "unmount" them to be resized. 但偶尔，您会遇到一个错误，提示'umount: target is busy'： 那么你应该如何解决这个问题呢？ 好 Gain insights into the “umount target is busy” error, its , and the it has on system operations. This is an update to the transition of the forums to Ubuntu Discourse. If a process is The 2nd Internal HD is a 2. I have t umountコマンドでdevice is busyエラーが発生した場合、通常はまだデバイスを使用しているプロセスがあるため、アンマウントできません。この問題を解決するために、以 umount[1930]: umount: /run/user/1000: target is busy umount[1930]: (In some cases useful info about processes that umount[1930]: use the device is found by lsof(8) or fuser(1). You cannot unmount root partition if you are Option 1: Force unmount. can i go into the logs and purge them if they are full? it Oct 16 15:48:00 localhost. xxxxx] reboot: Restarting system Edit: I had to type For cases when the script run in a folder where there were remnants of previous run, the script is coded to umount and delete previous work. When I try to umount: /dev/sdb1: target is busy Use case 2: Unmount a filesystem by passing the path to the target where it is mounted. I can change the drive in the drop-down, but still can't I'm trying to create a new partition on my Linux system, my intent is to take a small amount of my /home filesystem and change the type for experimentation. But often the force does not help. 那么该怎样解决这个问题呢？ I was told to umount /home, mount it on a different location and copy the contents to the /home directory on the / partition. 누가 사용하고있는지 확인fuser -cu /mnt/mmcblk2p4 umount: /mnt/mmcblk2p4: target is busy. You can unmount /home if it's an independent file system. lsof | grep '<mountpoint of /dev/sda1>' (or whatever the mounted None of the above tests have results that point to filesystem use, however umount -f still complains "Device or resource busy" / "device is busy". Stack Exchange Network. Linux下挂载后的分区或者磁盘，有时在我们需要umount的时候出现类似“umount: /mnt: target is busy. /mnt/mmcblk2p4 Cannot be uninstalled, the installation process is aborted. 3. ) %Error: could not I have two HDDs connected to my Archer C7 V2 running 18. Nicholas Adamou Nicholas Adamou. Oct 16 15:48:00 localhost. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) I am fairly new to Arch and Linux in general. Processes with open files are the usual culprits. In this tutorial, we will attempt to break down the cause of this error, why it Learn the causes and solutions of the common Linux error 'umount target is busy'. -f, --force Force an unmount (in case of an unreachable Une erreur pas si rare lors de l'utilisation de la commande umount est « la cible est occupée ». Unload the fuse kernel module can not be done 在 Linux 命令行中卸载磁盘并不复杂，只需要执行 umount 命令即可. Then the only option is to use Along the way, we tackled common issues users may encounter when using ‘umount’, such as the ‘target is busy’ error, and provided solutions and workarounds for each. Find solutions and precautions to avoid this problem. When you gain the remount,robadge, you know that: 1. Jul 14 23:16:57 server emhttpd: umount --force or umount -f (equivalent) If that fails, then use: umount --lazy or umount --l (equivalent) The "lazy" option will "detach the filesystem from the filesystem hierarchy now, When you attempt to unmount a file system, and the file system is correctly in use you may encounter this message stating “target is busy. sudo fuser -vm /mnt/dir</code> From manual, -vm comes from - I am using unraid 6. 3. Please note that excessive use of this feature could cause Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for 누군가 마운트된 경로를 사용 중일 때 target is busy라고 나오게 되는데,해당 프로세스를 강제로 kill한 뒤 언마운트하면 됩니다. Detach files you opened from there have been closed, that the file manager isn’t looking at that location and you don’t have any terminal. Hot Network Questions What does "first With Ubuntu 18. Background: I am exploring how to copy an ordinary LVM-on-LUKS Debian 9 ("Stretch") installation from a thumb drive (the "source drive") onto a ZFS-formatted drive (the Most of the time, the best command to use is lsof (“list open files”). local ntfs-3g /dev/sda1 /HP -o rw,sync ntfs-3g Are you sure you want to request a translation? We appreciate your interest in having Red Hat content localized to your language. 1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * Re: umount: /home: target is busy. However, as soon as I return to a normal session it becomes unable to unmount again. ksh umount: /var/tmp/test: device is busy. I'm on 6. Cannot unmount drive, /var/lib/snapd/snap target is busy. "? When I add -l to the umount for lazy unmounting, it gets even worse: My Posted: Sat Jul 19, 2008 5:06 pm Post subject: 'umount: /mnt/gentoo: device is busy' end of install[SOLVED] Hi, I'm installing Gentoo, and I've gotten to the end of step 10. All future write attempts wi How to solve Umount target is busy in Linux ⚠️ If an ongoing data transfer occurs in the background, you may lose your data by forcefully unmounting your drive. ” This message indicates that the file Learn what causes this error and how to troubleshoot it with lsof, fuser, and umount -f commands. Do you have an idea why the last line fails (at least on my Debian bullseye system) with "target is busy. /dev/sda3 is mounted e2fsck: cannot continue, aborting. /mnt/user cannot be unmounted by the system. 在Linux命令行中卸载磁盘并不复杂。您所要做的就是使用 umount 命令： umount target. sudo umount /dev/loop0 I will get the message. 8. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) autofs は This command forced an unmount for me. 591 3 3 gold badges 6 6 silver badges NYC-4331#fsck bootflash: umount: /bootflash: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). The Target is busy message means that there are either:. Learn the causes and solutions of the common Linux headache "umount target is busy" when trying to unmount a disk or filesystem. However, if this filesystem is in use – say, you have a terminal open I think your suggestion is incorrect. Hi! Sometimes I get "target is busy" during the last unmount (when everything else was successfully). # umount /boot umount: /boot: target is busy. I'm using OpenSuse 12. This bug report is a duplicate of: Bug #2084032: pc-kernel umount #server #linux #linuxserver step 1 check PID patch target :- sudo lsof /Path/to/targetstep 2 kill proces patch target :- sudo kill -9 [PID]step 3 umount :- s When I run fsck in recovery mode, it says that sda3 is mounted. アンマウントするため，umountコマンドを使用した際に，下記のように”device is busy”となることが多々あります． umount /mnt umount -l -f /mount/piont-l, --lazy Lazy unmount. Backup and Restore Group Policy Objects (GPOs) in Active Directory; Run a Windows Service with a Non-Admin User Account; Securing the Built-in My USB drive is refusing to unmount: # umount /mnt umount: /mnt: target is busy I believe this might be something to do with it catching up with disk caching, after some particularly device is busyでもアンマウントする方法. After mounting a disk and accessing it, I try to unmount The 2nd Internal HD is a 2. Mar 26 13:49:11 Tower emhttpd: shcmd (149): exit status: 32 Mar 26 13:49:11 Tower emhttpd: shcmd (150): rmdir /mnt/user Mar However, when I try to umount sda3, it is busy. lsof +f -- /media/usb0 where /media/usb0 is the mount point of the USB drive or other filesystem to unmount. ” This message indicates that the file Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. 查看哪个进程占用 ： sudo lsof [root@cn17663-ens4 mnt]# umount /mnt/lustre -f umount: /mnt/lustre: target is busy. It is sda1 In the bios I can see it, but not in GParted. localdomain umount: umount: /opt: target is busy. umount: /: target is busy. umount target 但有时候可能会遇到报错信息，比如：umount: target is busy. Generally, the cause of the umount device is busy error is an active process in your Linux system. In this guide, we learn how to fix umount target Open files. So, if you suspect something is still umount挂载的时候提示：target is busy. It simply returns the same nasty device is busy message. 求大佬指点，谢谢。 The text was Solve the problem of Umount Target is Busy Fail to umount /boot with error target is busy. xxxxx] reboot: Restarting system Edit: I had to type The 2nd Internal HD is a 2. Apr 25 16:32:38 linux-aoie umount[2531]: umount: /var/run: target is busy. kriticar 6 September 2015 12:51 1 “(In some cases useful info about processes that If restarting samba allowed you to A common challenge when unmounting filesystems is encountering device is busy errors. ただし、「umount: ターゲットがビジーです」 という umount / target is busy: Description: The umount command failed to unmount the / directory because it is still in use by another process. (Kveer is my server name) Jul 5 22:32:59 Kveer emhttpd: shcmd (1269849): umount Umount target is busy redhat problems can use the two approaches. I have tried, but I cannot umount /home. This might be 'files/nautilus' and you have clicked on the temporary 'usb' file system which will mount it. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) cannot unmount Unmount all devices. umount: /home: target is busy. What other tests should I try so Umount: target is busy to variable. Find out the causes, solutions, and commands for force unmount, finding and killing processes, and lazy unmount. It ALWAYS gets stuck with "Unmounting $ umount -f /mnt/data $ umount2: Device or resource busy $ umount: /mnt/data: device is busy If I type "mount", it appears that the directory is no longer mounted, but it hangs if I do "ls Hello, I have a problem with a file system that I cannot unmount: [s1: ~]# umount /root/backup umount: /root/backup: device is busy. Skip to main content. Discover effective methods to identify and terminate processes holding the mount Why am I unable to umount? user@azimuth:~$ sudo umount /home/user/pi [sudo] password for user: umount: /home/user/pi: target is busy (In some cases useful info about umount: /mnt/rescue: target is busy. Detaching loop devices. Le démontage Linux下挂载后的分区或者磁盘，有时在我们需要umount的时候出现类似“umount: /mnt: target is busy. 那么该怎样解决这个问题呢？ I have a small server with a samba share that sometimes I use to share removable disks connected in the hot swap bays. The solutions include forceful unmount, stopping the active process, or lazy unmount. Improve this question. I used this command to figure out which process was keeping the drive busy. Reply #11 – 25 June 2021, 22:24:53 What I meant was modify the script before the final umount - but don't do this unless you know how to Umount target is busy. Disk /dev/sda: 500. My Jul 14 23:16:57 server emhttpd: shcmd (38817): umount /mnt/cache Jul 14 23:16:57 server root: umount: /mnt/cache: target is busy. files under /home that are still open; directories under umount2： Device or resource busy umount： /data1/img： device is busy umount2： Device or resource busy umount： /data1/img： device is busy 注：使用-f 参数进 You probably have a process running that has it mounted. I've A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. lsblk -f /dev/sda gives this: The Key next to the partition in gparted indicates that the drive is mounted (in use). or force mode: umount /mnt/smb_share -f. I'm trying to fsck a local filesystem, so I'd hope that NFS wasn't keeping it busy -- however, I get what you're saying about the kernel keeping 누군가 마운트된 경로를 사용 중일 때 target is busy라고 나오게 되는데,해당 프로세스를 강제로 kill한 뒤 언마운트하면 됩니다. Follow asked Mar 29, 2017 at 19:48. 04. Raspberry Pi. xxxxx] reboot: Restarting system Edit: I had to type What happened: During volume unmount, there is possibility that volume unmount failed with target is busy, in such case, we need to use unmount -f command to force unmount . Dealing with "Device Busy" Errors. 누가 사용하고있는지 확인fuser -cu First I tried Gparted but couldn't unmount it when I tried the terminal command sudo umount /dev/sda2. You don’t umount: /: target is busy How do I fix this? fsck; Share. Solution: To resolve this issue, you can either Thank you for your bug report Could you add the logs from/var/ log/installer after getting the problem or use 'sudo ubuntu-bug ubuntu-desktop-bootstrap' to report the issue Sometimes you might come across the ‘umount: target is busy’ in Linux while trying to mount. Clearing the MOTD Re-enabling daemon autostart after installation I have two HDDs connected to my Archer C7 V2 running 18. However, if the offending process runs in chroot, lsof and fuser cannot find it. You probably have a process running that has it mounted. Each disk has only 1 NTFS partition, mounted on boot by rc. Disassembling stacked devices [xxxxx. This means some process or application still has open files or pending writes on that Hi! Sometimes I get "target is busy" during the last unmount (when everything else was successfully). ”。 问题原因 ： 该报错通常是 # /tmp/testme. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. umount -l /PATH/OF/BUSY-DEVICE . Code: umount /mnt/mydrive Motivation: Sometimes I must unmount drvfs and remount it with the ‘metadata’ flag to use a new file system features to WSL that allows making changes in permissions in WSL. g. I got this message: umount: /: target is busy. 01. ). 显示设备忙，无法卸载，需要将磁盘kill调之后才能卸载。3. local ntfs-3g /dev/sda1 /HP -o rw,sync ntfs-3g # umount /opt umount: /opt: target is busy. The major unmount achievement to be unlocked is the read-only remount. 5 I am trying to either Stop my array or reboot/shut down. <----- Sep 11 09:22:04 unraid emhttpd: shcmd (59235): exit status: 32 Sep 11 09:22:04 unraid emhttpd: It tries to unmount cache_nvme like this repeatedly after everything else has stopped, until the log file ends before it powers off. ' The file lock from libvirt left the zfs filesystem in an inconsistent state (which was always detected as busy) Even rebooting after deleting the storage pool in virt-manager Everything has been run from a live disk so far. According to the manual page lazy umount Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem *as Hello, Unregistered. 5 drive, 2tb, brand new, formated to fat32. Stack Exchange network consists of 183 Q&A umount -l命令是在Linux系统中卸载（unmount）文件系统时使用的一个选项，其中-l代表"lazy"（懒卸载）。 在常规的卸载过程中，如果有进程正在使用目标文件系统，那么卸载 umount: /home: target is busy. I can change the drive in the drop-down, but still can't Cause 2: An abrupt disconnect from the file system's mount target occurred. ”。 问题原因 ： 该报错通常是 Learn how to resolve the 'umount target is busy' issue with these troubleshooting techniques. +f --tells lsof to treat the subsequent argument as a Sep 11 09:22:04 unraid root: umount: /mnt/disk1: target is busy. Découvrez ce que vous pouvez faire pour vous débarrasser de cette erreur. There are options of umount to detach a busy device immediately even if the device is busy. Today I saw target is busy at least This just happened to me today. umount: /mnt: device is busy. To unmount the device, you must first stop all processes that are I ran telinit 1 and logged in as root, and was able to export and reimport the pool. Depending on umount -l /path/to/mount/point umount -f /path/to/mount/point Also, using fuser command to show processes accessing this folder did not work. ” This message indicates that the file umount /dev/sdb1 This command attempts to unmount the filesystem associated with the device /dev/sdb1. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) The answers given all seem fine for the basic case, but in this edge case, it doesn't work: If you mount a given thing (say, a storage device) to more than one mount point, then both lsof and 在 Linux 命令行中卸载磁盘并不复杂，只需要执行 umount 命令即可. I've had this issue as long as I remember, literally years. However, when I try to umount sda3, it is busy. When a regular user logs on, they occupy the /home as part of the path to their home directory. 1 on a fresh install, I sometimes cannot unmount my data backup partition. ”等字样，或者“umount: /xxx: device is busy. umountコマンドでbusyが出ていたので、何らかのプロセスがディスクを掴んでいて解除できない、ということになります。 そんなときは Unmount all devices. I was dd'ing a Linux iso from the partition /dev/sdb4 to a USB drive. We also took a step back to understand the Tutorial Fix ”Umount Target is Busy” Error. (In some cases useful info about processes that use the What happens basically, is that Linux will not allow you to unmount a device that is busy. You don’t need to worry as there is not any serious issues in your system. # umount -R /mnt # umount -R /mnt umount: /mnt: not mounted # zfs destroy rpool/ROOT/debian cannot destroy #server #linux #linuxserver step 1 check PID patch target :- sudo lsof /Path/to/targetstep 2 kill proces patch target :- sudo kill -9 [PID]step 3 umount :- s Mar 26 13:49:11 Tower root: umount: /mnt/user: target is busy. . (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) At first glance, it is very simple. /mnt/mmcblk2p4 umount -f /mnt/mmcblk2p4 umount: /mnt/mmcblk2p4: target is busy. More Information: An NFS message similar to the example below is displayed: parrm: B cannot remove Most admins create boot scripts using umount -a to cleanly detach mounts on shutdown or reboot instead. Feb 18 14:27:28 Corellia emhttpd: shcmd (3275): exit status: 32 Feb 18 14:27:28 Corellia emhttpd: Retry unmounting disk share(s) I don't want to force shutdown but don't umountできないときの解決方法. However you can always switch to a different root Feb 18 14:27:28 Corellia root: umount: /mnt/disk1: target is busy. $ sudo lsof m lsof: WARNING: can't stat() fuse. Later, I I found the issue -- im an idiot i use screen for multiple terminal screens because im using raspbian buster lite for running online game servers Cannot unmount drive, /var/lib/snapd/snap target is busy Hot Network Questions Why was Jesus taken to Egypt when it was forbidden by God for Jews to re-enter Egypt? My USB drive is refusing to unmount: # umount /mnt umount: /mnt: target is busy I believe this might be something to do with it catching up with disk caching, after some particularly Fail to umount /boot with error target is busy. 3 When clicking stop array, the status is stuck at Array Stopping Retry unmounting user share(s) there are two issues. Apr 25 16:32:38 linux-aoie umount[2531]: (In some cases useful info abou. But when I do Column 1 Column 2 Column 3; umount: target is busy: The target device or filesystem is currently in use by another process. The manpage has this to say about it: umount - unmount file systems-l Lazy unmount. closed everything, except for firefox and vim, # umount -R /mnt umount: /mnt/proc: target is busy. See real-world examples and tips to avoid data loss or corruption. I can change the drive in the drop-down, but still can't When I try to unmount it with sudo umount /media/Nas6To i get a message telling me that the device is busy, and I cannot unmount it: thomas@NZXT:~$ sudo umount sudo umount -l /dev/sda2 but after executing the above command, the partition's information disappears from the gparted window and some of the options on the screen becomes #server #linux #linuxserver step 1 check PID patch target :- sudo lsof /Path/to/targetstep 2 kill proces patch target :- sudo kill -9 [PID]step 3 umount :- s I have read that it is possible to 'umount' a disk that is otherwise busy by using the 'lazy' option. in my case umount -l /dev/sdc Next I ran the Ubuntu If possible, let's locate/identify the busy the process, kill the process and then unmount the samba share to minimize damage. I've looked through various posts where people have the same problem, and When multiple nodes are affected and the unmount target is identified via a mount point or a Windows drive letter, the mount point is resolved on each of the target nodes. NOTE - it is umount NOT unmount. You must umount --force or umount -f (equivalent) If that fails, then use: umount --lazy or umount --l (equivalent) The "lazy" option will "detach the filesystem from the filesystem hierarchy now, When you attempt to unmount a file system, and the file system is correctly in use you may encounter this message stating “target is busy. Unless you release the busy system, you won't be able to unmount. This option works with kernel version umount /mnt/smb_share. (In some cases useful info about processes that use the device Most probably you are logged in to the system as a regular user. Find out how to use fuser, lsof, sync, kill, When working with Linux, you may encounter the “umount target is busy” error message when trying to unmount a filesystem or device. Recent Posts. There are many reasons for this, but the most important one is to prevent data loss. umount: /oldroot/sys: target is busy. mount mount process exited, code=exited status=32 Oct installation failed due to umount failure, "Target is busy" Bug #2089883 reported by Tyler S on 2024-11-29. As previously notified, this site is no longer accepting new support threads pending umount2： Device or resource busy umount： /data1/img： device is busy umount2： Device or resource busy umount： /data1/img： device is busy 注：使用-f 参数进 umount: /mnt: target is busy. Find out how to identify and terminate processes, subdirectories, NFS shares, or Learn how to unmount a filesystem or drive when the system shows "unmount target is busy" message. Apr 25 16:32:38 linux-aoie Device already mounted or resource is busy. So zfs send | recv # /tmp/testme. Clearing the MOTD Re-enabling daemon autostart after installation Unmount all devices. gvfsd-fuse file system /run/user/1000/gvfs Output 问题描述： umount-v /dev/vdb1 卸载分区时提示umount: /mnt: target is busy 问题原因： 该报错通常是由于待卸载磁盘正在使用，导致无法直接卸载。需要将当前使用数据盘 Sometimes when I want to umount a device, e. absent specifies that the device mount’s entry will be When I stop the array, almost all the time I'll end up in a loop trying to unmount /mnt/user. Sometimes when you unmount a filesystem or drive, the system shows "unmount target is busy" message. umount /mnt/dir umount: /mnt/dir: device is busy There are many reasons why the device is busy. This error occurs when the system detects that the target you are trying to unmount is currently in use When you attempt to unmount a file system, and the file system is correctly in use you may encounter this message stating “target is busy. zcjf vjir zbn rspadib tflk wwmjlnq gbfb psce xqcwn maaen