Sshfs umount target is busy sudo umount /dev/loop0 I will get the message. The “umount target is busy” issue occurs due to the Hello, Unregistered. Commented Jun 3, 2019 at 17:39. To identify the process that locks the filesystem and prevents it from being unmounted you can use the lsof command: You cannot unmount the root filesystem, since it is always in use — at the very least, by whatever process is invoking the umount syscall. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) I usually solve this issue by closing a console window (in my case xfce4-terminal) and then umount. This is an update to the transition of the forums to Ubuntu Discourse. com/roelvandepaarWith thanks & praise t Hi! Sometimes I get "target is busy" during the last unmount (when everything else was successfully). The right state for what OP was trying to achieve is absent_from_fstab. ) How to unmount the sshfs share? UPDATES: What happens basically, is that Linux will not allow you to unmount a device that is busy. It should be run with sudo (superuser permissions). The third and safer alternative to the force unmount is a lazy unmount. $ sudo lsof m lsof: WARNING: can't stat() fuse. If you want to wait until the filesystem is unused because it's on a removable device (for example), you probably want a busy loop to wait for all open file descriptors on the filesystem to go away. Modified 4 years, 1 month ago. Also inxi gets rejected because I am not allowed to post links I guess. Anyone know how I can find what is keeping bootflash busy? This has worked on identical 4331's in our environment. Why? (13 Solutions!)Helpful? Please support me on Patreon: https://www. You should find out which process is keeping the mountpoint busy. absent_from_fstab specifies that the I think the following script will do the job. I often see "device busy" with sshfs when I have a terminal window open to a directory on the sshfs share. Later, I exited the terminal, and If the answer is "nothing" then you could use umount -l /dir1 quite safely. Could someone help me? It tries to unmount cache_nvme like this repeatedly after everything else has stopped, until the log file ends before it powers off. gvfsd-fuse file system /run/user/1000/gvfs Output information may be incomplete. This article introduces how to ssh-jump on a remote intermediate server(s) to ssh-connect into a target server with a single command. I get a message saying that the device is not currently mounted: Here's a list of all of the disks connected to Due to the complex and interwoven nature of Mac OS X, umount may fail often. Le démontage des disques dans la ligne de commande Linux n'est pas compliqué. Ask Question Asked 4 years, 1 month ago. This bot triages un-triaged issues according to the following rules: 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 fuser report all the processes using the device regardless of the mountpoint. (Requires kernel 2. This approach (e. Error: Target device is currently busy, unmount all mounted partitions in target device then try again. CSV The question is: How can I "un-busy" my USB? Dear all, I have a problem with my USB. But often the force does not help. 04 Jammy Jellyfish Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Ubuntu: umount: /: target is busyHelpful? Please support me on Patreon: https://www. 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 参数进行强制卸载时一般建议等一会儿再进行下面的操作，一些情况下处理需要1－2分钟的时间。 $ umount <path> - sample output - umount: <path>: target is busy. ). This might be 'files/nautilus' and you have clicked on the temporary 'usb' file system which will mount it. Target device is busy, please make sure you unmount all filesystems on target device or shutdown the computer before detaching it. I've had this issue as long as I remember, literally years. 5 I am trying to either Stop my array or reboot/shut down. $ umount -l /device-path. 5 Using ‘sudoedit’ The ‘sudoedit’ method is similar to the ‘sudo’ method. exe or less brutal: 当然大家可以根据各自实际情况选择合适的方法。在 Linux 命令行中卸载磁盘并不复杂，只需要执行 umount 命令即可：复制但有时候可能会遇到报错信息，比如：umount: target is busy那么该怎样解决这个问题呢？ The Kubernetes project currently lacks enough contributors to adequately respond to all issues. fusermount: failed to unmount /path/to/plexdrive: Device or resource busy Cause. Solution: To resolve this issue, you can either close the process that is using the / directory or use the force option to unmount the directory. 213 1 1 gold badge 2 Column 1 Column 2 Column 3; umount: target is busy: The target device or filesystem is currently in use by another process. umount: /mnt/c: target is busy. However, it is a different implementation: it does not keep an open session running in the background. What you have to do is just execute $ sudo umount -l /path/to/plexdrive. SSHFS (SSH Filesystem) I've also tried unmounting the device by running sudo umount /dev/disk1 as well as sudo umount /dev/rdisk1. Create pre-unmount scripts using umount hooks to close accessing programs gracefully. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) cannot unmount '/var/tmp/test': umount failed zfs umount test/test: You might want to try the sudoedit method that tramp implements, instead of using the sudo method in er-sudo-edit (btw, where did that function come from?). Your second suggestion won't really work because the pool cannot stay as read-only since it is written to each night. ) %Error: could not unmount bootflash /bin/ln: failed to create symbolic link '. To unmount the device, you must first stop all processes that are using it. The solution is pretty easy. So, you need to "unmount" them to be resized. fuse. On nfsv4 client was connected in the past. Since it still happens in a live disk environment, though, do you know a way to stop the kernel from accessing it long enough for me to run fsck? fusermount: failed to unmount /home/tmp/tmp. The root user account has a home directory of /root therefore is not affected by /home. 4° E Beans 6,853 Distro Xubuntu 22. It means that the target namespace does not have to contain any libraries or another requirements necessary to execute umount(2) command Once I exit chroot and run 'umount /mnt' as per the beginner's guide, I get the message: umount: /mnt: target is busy. lsof | grep '<mountpoint of /dev/sda1>' (or whatever the mounted device is) pkill target_process (kills Before using the force unmount option, ensure that there are no ongoing critical data transfers or active connections to the target directory. The only thing that worked was deleting every partition with fdisk (which removed the zfs metadata signature from the disks) & rebooting. You cannot unmount root partition if you are booting from it. 5. 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 processes that use the device is found by lsof(8) or fuser(1). We cannot use windows "native" unmount (net use X: /delete) because for windows the sshfs-win mount is not a network drive but a physical drive (net use returns empty set) I managed to disconnect this mount by killing sshfs, as it is recommended to do. For example, if you have /boot and /boot/efi mounted, running umount /boot will fail because the device is busy. 11 or later. Disassembling stacked devices [xxxxx. The Key next to the partition in gparted indicates that the drive is mounted (in use). umount: /oldroot/sys: target is busy. In my case, I forcefully killing the Plexdrive process. You can't pinpoint which processes are only using the particular mount point you're trying to umount. Detaching loop devices. General. There are many reasons for this, but the most important one is to prevent data loss. Does anyone have any idea how to resolve this issue? lvm; ubuntu-gnome; umount Fix 3: Lazy Unmount. I killed a zombie container process accessing /dev/loop2, but still cannot detach /dev/loop2 and still stuck trying to unmount. Clearing the MOTD Re-enabling daemon autostart after installation Removing mtab Unmounting the bootstrap volume Executing: umount /targ 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 /media/Nas6To umount: /media/Nas6To: the target is active. ) I tried some different options with the command lsof and fuser, but it didn't work so far. . 1804. Join Date Aug 2011 Location 52. The only way to approach this is to shut down, boot to an installer disk, and then adjust the LVs (so that the tmp LV isn't actually being used, since it's not Une erreur pas si rare lors de l'utilisation de la commande umount est « la cible est occupée ». Remounting a stale sshfs mount is unfortunately a little cumbersome (close/kill any processes using that node, sudo umount manually, then remount with sshfs). The manual says: 3. (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. When the logical variable busy is false, the while loop is finished and the script can start 'doing some things'. In this tutorial, we will attempt to break down the cause of this error, why it Learn how to fix umount target is busy in Linux. It is usually better to do Maybe this is obvious, but if the resource is being used by some process (that is, the resource is actually busy), then that could prevent the unmount. umount. lsblk -f /dev/sda gives this: NAME FSTYPE LABEL UUID FSAVAIL FSUSE% MOUNTPOINT sda ├─sda1 │ vfat 5AF1-7D88 If a subdirectory of the target directory is mounted, you may not be able to umount the target directory. As previously notified, this site is no longer accepting new support threads pending its closure . BUT: This does not unmount anything. (Kveer is my server name) Jul 5 22:32:59 Kveer emhttpd: shcmd (1269849): umount Maybe that wasn't always the case (or OP wrongly extrapolated from present) but nowadays the documentation reads:. I got this message: umount: /: target is busy. 4. I was dd'ing a Linux iso from the partition /dev/sdb4 to a USB drive. I cannot seem to eject it because the target is busy. Check this using lsblk 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 showed zfs in a still busy state. Unfortunately those commands Dear all, I have a problem with my USB. You then end them (normal close, If a subdirectory of the target directory is mounted, you may not be able to umount the target directory. Hi all, Wonder if anyone has come across this. Tout ce que vous avez à faire est d'utiliser la commande umount : umount target Hello, I have a problem with a file system that I cannot unmount: [s1: ~]# umount /root/backup umount: /root/backup: device is busy. But when I do this: sudo umount /mnt/c. Here are a few commands you can use to find the busy process: fuser. However, as soon as I return to a normal session it becomes unable to unmount again. A lazy unmount allows the system to detach the specified mount point in a hierarchical manner. COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME kdevtmpfs 55 root cwd DIR 0,6 4420 2 m kdevtmpfs 55 root rtd DIR 0,6 4420 2 m # /tmp/testme. 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的进程杀掉，才能卸载。解决办法： 通过lsof命令处理 yum install lsof [root@s~]# lsof /mnt/ COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME bash 154 Column 1 Column 2 Column 3; Title: Description: Link: How to unmount a busy filesystem in Linux: This article explains how to unmount a busy filesystem in Linux. This usually happens when the resource is used by another process. Thanks in advance, fstab; sshfs; Share. See discussion here: page 1, page 2. sshfs as #!/bin/sh /bin/fusermount -u "$1" then stopping the mount unit works well - systemd will call the umount helper and will correctly unmount the filesystem (don't call umount from the umount helper because umount also calls helpers and you'd get into an I ran telinit 1 and logged in as root, and was able to export and reimport the pool. This is what systemd does if the initramfs provides a shutdown binary, for instance: it switches back to the initramfs to let it complete the shutdown I don't think umount is the right thing to use on an SSHFS mount: see for example unmount sshfs from mount point – steeldriver. WBr 25 March 2022 14:47 1. Mihai G. With Ubuntu 18. Recovery mode still mounts /tmp/. You must login as root in order to unmount /home. There is a function doer with a while loop, that checks with mountpoint if a device is mounted at the specified mount point, and if it is, tries to unmount it with umount. Immediately after close() returns, umount() may return EBUSY while it performs asynchronous release. When a regular user logs on, they occupy the /home as part of the path to their home directory. To resolve this, follow The “umount target is busy” is fixed by forcefully unmounting, eliminating each process individually, or doing a lazy unmount to auto-remove processes. com/roelvandepaarWith thanks & praise to God, and with thanks to $ ps -ef | grep sshfs | grep -v grep root 10906 5170 0 07:14 pts/0 00:00:00 sudo sshfs root 10907 10906 0 07:14 pts/0 00:00:00 sshfs Now kill them both or selectively by identifying them by their PID: sudo kill -9 10906 10907 2. You may cleanup all later: umount -l /PATH/OF/BUSY-DEVICE umount -f /PATH/OF/BUSY-NFS(NETWORK-FILE-SYSTEM) NOTE: These commands can disrupt a running process, cause data loss OR corrupt open files. But, if you run umount /boot/efi first, now umount /boot will succeed. sudo pkill -9 Sometimes when you unmount a filesystem or drive, the system shows "unmount target is busy" message. g. Everything has been run from a live disk so far. I removed all references from /etc/exports. nfs: <path>: device is busy. When you do an NFS mount, it sometimes shows 'device is busy” status, in such case we need to perform force unmount in a graceful way. You probably have a process running that has it mounted. 1 on a fresh install, I sometimes cannot unmount my data backup partition. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) and if I add the force option -f it gives the same result: [root@cn17663 How can I unmount sshfs without sudo? Any enlightenment will be appreciated. Unless you release the busy system, you won't be able to unmount. Exiting the terminal or changing directories to a local share then running 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 One of the primary reasons for the "Umount Target is Busy" error is the presence of active processes that are using resources within the target directory. The windows equivalent to the linked answer is : taskkill /f /im sshfs. 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). Umounting filesystem. Unmount your mount point sudo umount Solve the problem of Umount Target is Busy Can not unmount a drive it says target is busy? double check that all programs running are not accessing the drive make sure any shells are 'cd' out of the mountpoint. Regarding umount -l, that in my opinion is a very dangeros option when somabody has a cluster or a shared storage. Thanks in advanced! NYC-4331#fsc 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. /sda1': File exists mount: /dev/sda1 is already mounted or /bootflash busy /dev/sda1 is already mounted on 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 volume directly. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) [s1: ~]# I have tried to find who is using it, but neither lsof nor fuser does not show any process using the file system: [s1: ~]# fuser /root/backup 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 参数进行强制卸载时一般建议等一会儿再进行下面的操作，一些情况下处理需要1－2 分钟的时间。 [root@cn17663-ens4 mnt]# umount /mnt/lustre umount: /mnt/lustre: target is busy. I have found on different post using fuser and lsof to identify the process keeping it busy. 04. exportfs and /proc/fs/nfsd/exports shows umount / target is busy: Description: The umount command failed to unmount the / directory because it is still in use by another process. Découvrez ce que vous pouvez faire pour vous débarrasser de cette erreur. Unmount early, unmount often! Don‘t leave external drives mounted when not actively needed. Interestingly, rmdir then gives this message: $ 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 /mnt/data", and if I try to remove the mountpoint, I get: $ rmdir /mnt/data rmdir: /mnt/data: Device or For NFS/network shares, use soft mount options to time out busy errors after retry attempts. I'm on 6. Conclusion. umount /mnt/smb_share. It simply returns the same nasty device is busy message. USB unmount: target is busy. It is recommended that diskutil(1) (as in, "diskutil unmount /mnt") be used instead. How can I force the process to stop without lose data? Which process could be running that should not? Learn how to resolve the 'umount target is busy' issue with these troubleshooting techniques. However, in some scenarios, you may encounter the “target is busy” error when attempting to unmount a device. In this guide, we learn how to fix umount Sometimes when I want to umount a device, e. However you can always switch to a different root filesystem, then unmount the original one. Using any of these methods, the problem “umount target is busy” can be fixed easily. Also make sure that no other regular user is logged before you attempt I want to unmount my main drive so I can run fsck on it because dmesg says that I should. , "diskutil umount path/to/mount/point") allows me to First I tried Gparted but couldn't unmount it when I tried the terminal command sudo umount /dev/sda2. Follow edited Oct 3, 2012 at 8:18. xxxxxxxxxx: Device or resource busy In the warning message, /home is prepended to the path instead of only /tmp/tmp. 3. and you are good In order to resolve the “umount target is busy” error, you need to identify the process or program that is currently using the target. For example this: lsof /mnt/remote will list those processes (there could be many). ksh umount: /var/tmp/test: device is busy. Dear all,. I cannot unount filesystem, that was exported via nfs. or force mode: umount /mnt/smb_share -f. So zfs send | recv will still fail. Then the only option is to use the lazy mode: umount /mnt/smb_share -l. Explained solutions using force unmount, detaching busy device by finding and kill the processes, and lazy mount. Find solutions and precautions to avoid this problem. I use it to store sensor data from my flow as . getting fusermount: failed to unmount /home/username: Based on an answer on Super User to this question: sshfs device is busy, the only thing that worked for me is. 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 unresponsive. However, when I try to unmount the drive I get the following error: Cannot unmount drive, /var/lib/snapd/snap target is busy How do I resolve this? In my experience, the following operations are asynchronous on Linux: Closing file. It only "moves" the mount to the root of the system, which can be seen as follows: To get fuse. Note that a file system cannot be unmounted when it is 'busy' - for example, when there are open files on it, or when some process has its working directory there, or when a swap file on it is in use. It returns . ) Everything has been run from a live disk so far. Most probably you are logged in to the system as a regular user. I think the docker image on /mnt/cache that's mounted on /dev/loop2 is preventing the unmount. The “l” represents the lazy unmount in the device. It uses libguestfs for access to the guest filesystem, and FUSE (the "filesystem in userspace") to make it appear as a mountable device. $ sudo mount -o rbind /dev m $ sudo umount m umount: /tmp/m: target is busy. I'm installing it from Arch running off a stick (full install on the stick, not the install media). Jump multiple remote hosts using ProxyCommand (SSH Tunneling) June 12, 2022 2 minute read . I've installed Arch in 2 other machines with no such problem. xxxxx] reboot: Restarting system Edit: I had to type what I see on the monitor when shutting down, since I can’t attach any pictures it seems. Introduction. I noticed sda1 drive errors in my log and am trying to run FSCK but I get the following errors. The fuser command displays the umount -l remote-l Lazy unmount. There are different ways and options we can try out if normal nfs unmount fails. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. umount: /mnt: device is busy. Since it still happens in a live disk environment, though, do you know a way to stop the kernel from accessing it long enough for me to run fsck? 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的进程杀掉，才能卸载。解决办法： 通过lsof命令处理 yum install lsof [root@s~]# lsof /mnt/ COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME bash 154 Unix & Linux: umount: device is busy. Before we start talking about how to umount non-sudo SSHFS created directory, let's briefly understand-What is SSHFS?. The fix would be in Unmount all devices. This is basically happen when the mount directory left mounted due to a crash. Or use unmount -l anyway and wait for the unmount to action – umount filesystem exported via nfs: target is busy. absent specifies that the device mount’s entry will be removed from fstab and will also unmount the device and remove the mount point. user61928 asked Sep 27, 2012 at 13:48. pacstrap fails: umount: /mnt/dev: target is busy I'm having some strange issues with pacstrap. xxxxxxxxxx . Solution. It ALWAYS gets stuck with "Unmounting disksRetry unmounting disk share(s)" and I am forced to use IPMI to umount: /: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). Next time you are stuck with this message, try the following command to find out what processes have activities on the device/partition. I have mounted /dev and immediately tried to unmount: $ sudo mount -o rbind /dev m $ sudo umount m umount: /tmp/m: target is busy. 5° N 6. patreon. 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 it busy in ways that won't necessarily show up. Viewed 405 times 1 CentOS 7. This guide offers insights and solutions to tackle this issue, explaining how to identify processes using If possible, let's locate/identify the busy the process, kill the process and then unmount the samba share to minimize damage. For example, if you have /boot and /boot/efi mounted, running umount /boot will fail Encountering the 'umount: target is busy' error in Linux can be frustrating. sshfs user mount units to stop (unmount), I created an umount helper in /sbin/umount. I don't know an fuser or lsof that'll list, because there's a lot of things that use /tmp/ including running SystemD services (core components of SystemD) among other things. movv wxnpy bbgt axxevc wxlqhwq ryun ewovr malzv jpsfn tartls