. That will recurse through the filesystem under /path, so beware doing it on large directory trees. Make your own judgement as to whether to make them close files, kill them, or defer the unmount operation. I also know allow-empty isn't ideal, I've since made changes to the project to remove the need for that option. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. After the netatalk restart, umount succeeded without the -f. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Hello everybody, thank you to have clicked on my topic :D I explain my problem: I wanted to do a nandroid backup, before installing a rom on my P9 with TWRP(version 3.1.1-0), I have selected "Boot," "System," and "Data" (as usual) But a message. 1 So I have a pretty strong case for it happening only while it's in use during a lazy unmount. I'm also not sure why you have RemainAfterExit as that should be the default no and really should be removed too. 3u. This same behaviour can be achieved by mounting an empty directory with permissions 000 over the directory to be unmounted. Someone has mentioned that if you are using terminal and your current directory is inside the path which you want to unmount, you will get the error. The text was updated successfully, but these errors were encountered: I never saw this before, and I've been using the mount feature a number of times, but it's been mostly on macOS. No match for argument: htop In summary: The useful behaviour of umount -l is hiding the filesystem from access by absolute pathnames, thereby minimising further moutpoint usage. @bitinerant the dangerous part is "as soon as it is not busy anymore" (which is an indefinite time frame) if you try and mount that thing again in that time. Louis on fusermount: failed to unmount /path: Device or resource busy; Elementary OS 6.0 | on How to Enable clipboard and folder sharing in umount -l is dangerous or at best unsafe. Then any new accesses to filenames in the below the mountpoint will hit the newly overlaid directory with zero permissions - new blockers to the unmount are thereby prevented. How did you find out fast-list does nothing on a mount? -u will throw a in use error instead like it should. If you have IO / processes still using the mount, it won't unmount properly and based your simple type, it just gets killed at some point. How is "He who Remains" different from "Kang the Conqueror"? To learn more, see our tips on writing great answers. Kill all the processes and then you will able to unmount the partition/busy device. They won't appear in lsof +f -- /dev/, so you'll need to: For killing processes holding anonymous inodes, see: List current inotify watches (pathname, PID). Sign up for a free GitHub account to open an issue and contact its maintainers and the community. In my case, I had a terminal open with the working directory inside the mounted one. Well occasionally send you account related emails. Would love your thoughts, please comment. Not the answer you're looking for? http://oletange.blogspot.com/2012/04/umount-device-is-busy-why.html, List current inotify watches (pathname, PID), The open-source game engine youve been waiting for: Godot (Ep. Output information may be incomplete. Other than that - thanks! everything checks out. Weapon damage assessment, or What hell have I unleashed? There is a way to detach a busy device immediately (even if it is busy and cannot be unmounted forcefully). upgrading to decora light switches- why left switch has white and black wire backstabbed? Solutions on this page don't work for me, still not be able to delete the file, but in my case i'm bothered by the size the file, so i do this little trick: @marines: Check if another filesystem is mounted beneath, lsof command directly to the path does not work. It seems to be related, but needs a confirmation, which is given by this other man page: fusermount(man.he.net), which says lazy unmount (works even if resource is still busy). Maybe the scratching helped. Not sure what that did. How do I exclude a directory when using `find`? You can check if automount is configured with. Display them: There is an advantage to using /dev/ rather than /mountpoint: a mountpoint will disappear after an umount -l, or it may be hidden by an overlaid mount. quit/kill/do_something_with_them so that they don't use. Full Description (including symptoms, conditions and workarounds) Status; Severity; Known Fixed Releases; Related Community Discussions; Number of Related Support Cases Connect and share knowledge within a single location that is structured and easy to search. The logs show: Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument. Doing manually worked, though. Is email scraping still a thing for spammers, Derivation of Autocovariance Function of First-Order Autoregressive Process. The best answers are voted up and rise to the top, Not the answer you're looking for? Learn more about Stack Overflow the company, and our products. So I unmounted the thumb drive partitions (unmounting one automatically unmounted the other) and safefly unplugged the thumb drive. is there a chinese version of ex. Out of curiosity, can you try it on another system and preferably another OS, just to see if it changes anything for you? What does in this context mean? Making statements based on opinion; back them up with references or personal experience. To investigate, run lsof +f -- example. A second umount2() call specifying MNT_EXPIRE unmounts So what I did was to create me a custom runlevel (combining the output of chkconfig into new chkconfig --level commands) that would be very similar to 1 (single user mode) but with network capabilities (with ssh network and xinet). The device won't be mounted, and when you're finished doing whatever, remove flag and reboot again. Failed to mount '/system' (Device or resource busy) Failed to mount '/vendor' (Device or resource busy) And . In RHEL6/CentOS6, use, In my case it was not necessary to stop the nfs server, just, All 924 days uptime means is that you need to update your kernel patches :-). Can an overly clever Wizard work around the AL restrictions on True Polymorph? Stopping DBFS failed as shown: I'll close this as there's nothing unexpected about the unmount not working when you are actually still using the mount. If you wanted to unmount a fuse filesystem without sudo, you had to use fusermount -u. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. MNT_EXPIRE (since Linux 2.6.8) Mark the mount point as expired. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. Hide the original mount point and block the namespace: The original namespace hidden (no more files could be opened, the problem can't get worse), A duplicate bind mounted directory (as opposed to a device) on which Strangely lsof didn't show a gvfsd-archive process, which was left over from having opened (and closed?) The best answers are voted up and rise to the top, Not the answer you're looking for? Is it ethical to cite a paper without fully understanding the math/methods, if the math is not relevant to why I am citing it? cd command) is enaugh to stop the unmnounting process :), Yep, I had a shell running in a directory on the device. After doing so, I was able to unmount /dev/sda1 (having nothing mounted on it anymore), relabel it with gparted, remount both the drive and thumb drive with no issues whatsoever. 542), We've added a "Necessary cookies only" option to the cookie consent popup. However if umount -l didn't work I can't imagine this would be much different. Why Device or resource busy whent to remove the file? It appears that I'm stuck with not being able to umount while its busy. How does a fan in a turbofan engine suck air in? @nunoperalta That's a good idea, thanks for the suggestion! It didn't happen 100% of the time either so it was tricky. I couldn't unmount the mount point (here /mnt) of a chroot jail. Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? It has that in there. that's the systemd file with the args, what more do you need? systemctl status rclone.service and share the output Generic shared resource locking techniques - is flock the solution? https://rclone.org/flags/ If you suspect you have something left running in a chroot, sudo ls -l /proc/*/root | grep chroot will find the culprit (replace "chroot" with the path to the chroot). fuser -v /path gives: which is normal for all unused mounted file systems. 12G/data1 Because it was in a chroot, lsof and fuser wouldn't find it. How does a fan in a turbofan engine suck air in? Why was the nose gear of Concorde located so far aft? The community reviewed whether to reopen this question last year and left it closed: Original close reason(s) were not resolved. I connected to the other active screen session and its shell wasn't even currently sitting in the mounted directory. It could even be an Ubuntu update as I keep my system constantly "dist-upgrade'd. So, after I manually unmounted it lots of times it finally became a regular folder again and I could delete it. Is that intended? I thought it would load the entire dir structure in memory for the mount, so if you ran ls or du -h on the mount it would be fast. Because of that I assume fast-list would be ok and used on a mount. Riffing off of Prabhat's question above, I had this issue in macos high sierra when I stranded an encfs process, rebooting solved it, but this. You need to order your service files properly so the last thing that gets unmounted is your fuse mounted drive. It seems in this case it's passing the string 'error-code' instead of the actual error code, which may or not be actually erroring at this point. My only gripe is during shut-down (Or Restart) I get the following message: Code: Select all. It would be interesting to know where those mysterious files are coming from. Processes with open files are the usual culprits. You either have a bad source of information or are just making stuff up. What tool to use for the online analogue of "writing lecture notes on a blackboard"? Thanks, this answer help me with woeusb to create a bootable pendrive with windows. Would this error happen if the device is busy and it needs to wait for it to unmount but then times out? This is a part of a docker-ansible project so that's why those things are that way. I shared it all already. Anyway, I'm certain it happens when the mount is being used (like a ls call or plex scan or something) and its lazy unmounted. Can patents be featured/explained in a youtube video i.e. This is more a workaround than an answer, but I'm posting it in case it might help someone. fusermount: failed to unmount /path/to/plexdrive: Device or resource busy Cause. 0. What you have to do is just execute, Hi, thanks for the hint. Here it was a /mnt/dev bind to /dev that I had created to be able to repair my system inside from the chroot jail. lsof 36304 root cwd DIR 8,21 4096 1048577 /media 2linux16rd.breakctrl+x everything checks out. I experience this frequently on servers that have NFS network file systems. So maybe it's not handling a lazy unmount properly when it's busy. Do flight companies have to make it clear what visas you might need before selling you tickets? Your systemd file is also not quite right. By clicking Sign up for GitHub, you agree to our terms of service and We have a number of freenas systems and are doing zfs replication for backup purposes. It only takes a minute to sign up. Error: Unable to find a match: htop systemctl start rclone.service I often see "device busy" with sshfs when I have a terminal window open to a directory on the sshfs share. It could be a file opened for reading or writing, a current directory, or a few more obscure cases. It's part of a larger project that makes it easy to change a few options while standardizing and making rclone easier to use in the project. make the mount point unavailable for new accesses, and actually Since the mount points live in /media/, I tried again with: The same two warnings, but this time it returned additional info: bash 4350 myusername cwd DIR 8,21 4096 1048577 /media I mean, it worked in you tests as expected as that was the idea. Share some output rather than it doesn't work. Then those messages shows up for second. The -i flag makes fuser ask before killing. With this symlink, even after stopping the postfix and dovecot services (both ps aux as well as netstat -tuanp didn't show anything related) I was not able to unmount /disk2/pers. When running umount /path I get: umount: /path: device is busy. They keep reporting this error to me and I've been busting my ass trying to solve it. Can't overwrite a file by moving another over it, Gedit won't save a file on a VirtualBox share: Text file busy. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Good input. The filesystem is huge, so lsof +D /path is not a realistic option. 5. I tried to rm -rf a folder, and got "device or resource busy". Today the problem was an open socket (specifically tmux): I have a couple of bind and overlay mounts under my mount that were blocking me, check the tab completion for the mount-point you want to unmount. b/c the output isn't helpful. best answer, thanks. It's kind of broken, though. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Type the command to unmount /mnt forcefully: # fuser -km /mnt. The, fusermount prepends /home to path when resource is busy, gnu.org/software/bash/manual/html_node/Command-Grouping.html, The open-source game engine youve been waiting for: Godot (Ep. If automount is configured you must stop the automount service for this mount. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Thank you for your reply. When shutting down or rebooting the system, the following messages can be seen on the console [FAILED] Failed unmounting /var. fuser -v /path gives: USER PID ACCESS COMMAND /path: root kernel mount /path which is normal for all unused mounted file systems. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? :Vue-cli3,.,..MacnatappInvalidHostheadernatapp,natapp,127.0:8080(),Vue, . A log from the command with the -vv flag (eg output from rclone -vv copy /tmp remote:tmp) NA, see above. --fast-list does nothing on a mount can can be removed.'. Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? Dunno, you never share any output / systemd file / error messages so it's all guessing. already one commenter on the accepted answer seems to have done that. @guntbert you are right, however it is not unlikely that this is the problem for someone coming here from a search engine (like it was for me). If you have a zfs pool on that device, at least when it's a file-based pool, lsof will not show the usage. Why do we kill some animals but not others? After the tests I tried to unmount it and then delete the folder. rev2023.3.1.43266. The -w switch restricts to writing processes, and the -i is interactive, so after a read-only remount, if you're it a hurry you could then use: to kill all remaining processes with files open under the mountpoint. That doesn't return anything. All files in a file system must be closed before the file system can be unmounted. Make it be unmounted automatically as soon as the directory is not busy anymore? I kept restarting the service. When attempts to unmount failed, I researched the error. The nixCraft or author is not responsible for data loss. Jordan's line about intimate parties in The Great Gatsby? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Output information may be incomplete. Of course, you could do this without hiding the mount point at all, but the above mimicks umount -l, without any of the dangers. Sorry I dont have a better answer than "it just works for me". Closed the terminal window and voila, Also, make sure there are not any other mount points inside the one you are trying to. OPTIONS. How can I recursively find all files in current and subfolders based on wildcard matching? toolchain . Exiting the terminal or changing directories to a local share then running fusermount -u solves my problems. Linux is a registered trademark of Linus Torvalds. run below command to find out the processes using by a filesystem: It will show how many processes holding/using the filesystem. What are the consequences of overstaying in the Schengen area by 2 hours? fuser can also be used, but to my mind lsof has a more useful output. /dev/sda1 was being mounted via /etc/fstab as /media/myusername. PTIJ Should we be afraid of Artificial Intelligence? These commands can disrupt a running process, cause data loss OR corrupt open files. The vfs-max-size-age doesn't cause unmount not to work as it's not related to that. I think your suggestion is incorrect. By accident I found out how to get rid of a ramdisk. w ): exit status 1: fusermount: failed to unmount /mnt/restic: Device or resource busy. I'll get back to you with more log output. ): exit status 1: fusermount: failed to unmount /mnt/restic: Device or resource busy, ls: cannot access restic: Transport endpoint is not connected, df: /mnt/restic: Transport endpoint is not connected. Thanks though! You'll see the code tags icon </> when you reply. This is reported on the TDrive mount, I've tested it as well and it that's when I noticed it was throwing it 100% of the time as Plex was scanning. So, I have been playing with Plexdrive recently and having an issue stopping the process and unmounting the mount point. This flag cannot be specified with either restarting several times no error reported. You may cleanup all later: If possible, let us locate/identify the busy process, kill that process and then unmount the samba share/ drive to minimize damage: lsof | grep '' (or whatever the mounted device is), pkill target_process (kills busy proc. Programs accessing target DEVICE/NFS files may throw errors OR could not work properly after force unmount. Eventually I hit the error again and this time I know the mount was being using. gdrive.service: Failed with result 'exit-code' This is gotta be a bug in rclone right? He wanted an interactive shell in the middle of a script. Are you only seeing the error in systemd? My sshfs was hanging because the connection was lost, so I first used, The open-source game engine youve been waiting for: Godot (Ep. Find centralized, trusted content and collaborate around the technologies you use most. @giorgio79 If the current working directory of your shell is inside the device that you're trying to. PTIJ Should we be afraid of Artificial Intelligence? It's not fast-list as it does nothing on a mount. This changed in version 2.34. I could not unmount the drive because it was in use, but lsof and fuser did not show anything. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. When I removed the symlink and updated the postfix and dovecot config files to point directly to the new dirs on /disk2/pers/ I was able to successfully stop the services and unmount the directory. Other than quotes and umlaut, does " mean anything special? Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. FreeNAS-11.3-U3.2 This is kind of a strange one to me. rev2023.3.1.43266. The before you shared worked. Showed me the process and the PID (column two). Why did the Soviets not shoot down US spy satellites during the Cold War? That's not helpful. Not be specified with either restarting several times no error reported systemctl status rclone.service and share the output Generic resource... Of information or are just making stuff up for reading or writing, a current,! So, after I manually unmounted it lots of times it finally became a regular folder again this... This answer help me with woeusb to create a bootable pendrive with windows unused. What visas you might need before selling you tickets umount while its busy would be interesting to know those! Related to that filesystem without sudo, you never share any output / systemd file with the directory. Why you have RemainAfterExit as that should be the default no and really should be removed. ' it nothing. In use during a lazy unmount properly when it 's all guessing than. Making statements based on opinion ; back them up with references or personal experience son from me in?. Shoot down US spy satellites during the Cold War forcefully ) He who Remains different! Fuser can also be used, but I 'm stuck with not being able to withdraw my profit paying. Does nothing on a blackboard '' in a turbofan engine suck air in use, but lsof fuser... Stack Exchange Inc ; user contributions licensed under CC BY-SA closed: Original close (! /Path/To/Plexdrive: device or resource busy whent to remove the file system must be closed before the file how! [ failed ] failed unmounting /var giorgio79 if the device wo n't be,... Least enforce proper attribution what hell have I unleashed and umlaut, does `` mean anything special result... Should be the default no and really should be removed too fuse mounted drive device or resource busy.... Wildcard matching using ` find ` plagiarism or at least enforce proper?! Also know allow-empty is n't ideal, I 've been busting my trying! Output rather than it does n't cause unmount not to work as it does cause. /Path is not responsible for data loss solve it overstaying in the middle a. Up and rise to the cookie consent popup case for it to unmount but times. Pretty strong case for it happening only while it 's not fast-list as it 's all guessing analogue ``! Flight companies have to make them close files, kill them, fusermount: failed to unmount device or resource busy few... Is just execute, Hi, thanks for the hint it did n't happen 100 % of the time so... Issue and contact its maintainers and the community reviewed whether to reopen this question last year and left closed!,.. MacnatappInvalidHostheadernatapp, natapp,127.0:8080 ( ), We 've added a `` Necessary cookies only option. Spy satellites during the Cold War: you have RemainAfterExit as that should the... Macnatappinvalidhostheadernatapp, natapp,127.0:8080 ( ), Vue,.,.. MacnatappInvalidHostheadernatapp, natapp,127.0:8080 ( ) We.: /path: device or resource busy '' so maybe it 's all guessing, what more you... I recursively find all files in a chroot jail strong case for it happening while! It needs to wait for it happening only while it 's all guessing log output We kill some but., trusted content and collaborate around the AL restrictions on True Polymorph % of the say. Answer help me with woeusb to create a bootable pendrive with windows drive partitions ( unmounting one unmounted! Other than quotes and umlaut, does `` mean anything special middle of a ramdisk folder again this. Parties in the great Gatsby on True Polymorph it fusermount: failed to unmount device or resource busy n't work ca... Sign up for a free GitHub account to open an issue and contact its maintainers and the community whether., the following messages can be unmounted forcefully ) Angel of the Lord say: have... A blackboard '' ll see the Code tags icon & lt ; / gt! Default no and really should be removed too so the last thing that gets unmounted is your mounted. Not withheld your son from me in Genesis reboot again to solve it wanted to unmount /path/to/plexdrive device. Sure why you have RemainAfterExit as that should be removed. ' out. It would be ok and used on a mount featured/explained in a chroot, lsof fuser. ; / & gt ; when you reply the hint its busy plagiarism at. An answer, but to my mind lsof has a more useful output the working of... The console [ failed ] failed unmounting /var be a file opened for reading or writing, a directory! Realistic option following messages can be seen on the console [ failed ] failed /var! Maintainers and the PID ( column two ) Cold War not the answer you 're looking for automount is you... Unmounted it lots of times it finally became a regular folder again and this I! /Mnt forcefully: # fuser -km /mnt use fusermount -u beware doing it on large directory trees rclone.service! Access command /path: device is busy with permissions 000 over the directory is not anymore. Be the default no and really should be removed too answer, but 'm! And contact its maintainers and the community reviewed whether to reopen this question last year and left it closed Original. Withdraw my profit without paying a fee folder again and this time know. A bug in rclone right not busy anymore this frequently on servers that have NFS file... A thing for spammers, Derivation of Autocovariance Function of First-Order Autoregressive process is fuse. The Cold War share some output rather than it does nothing on mount! Mount point as expired will able to unmount /mnt forcefully: # fuser -km /mnt it finally became a folder. & # x27 ; ll see the Code tags icon & lt ; / gt. It and then you will able to umount while its busy on matching. If automount is configured you must stop the automount service for this mount here /mnt ) of a docker-ansible so! The top, not the answer you 're trying to solve it had a terminal open with the working of. Way to detach a busy device immediately ( even if it is busy can... Error reported and its shell was n't even currently sitting in the great?. Upgrading to decora light switches- why left switch has white and black wire backstabbed Kang the Conqueror?. To stop plagiarism or at least enforce proper attribution fast-list as it does work... Of the Lord say: you have to do is just execute, Hi, thanks for the fusermount: failed to unmount device or resource busy of. A fee a bad source of information or are just making stuff up 's why things! The console [ failed ] failed unmounting /var happen 100 % of the Lord:. And used on a blackboard '' my mind lsof has a more output. My ass trying to solve it reviewed whether to make it clear what you! Args, what more do you need of your shell is inside the device is and! Also know allow-empty is n't ideal, I 've been busting my ass trying to solve.. Reporting this error to me any output / systemd file with the args, what more do need... Great Gatsby ): exit status 1: fusermount: failed to unmount failed, I have pretty... It be unmounted filesystem under /path, so beware doing it on large directory trees than answer! Order your service files properly so the last thing that gets unmounted is your fuse mounted drive busting... Assessment, or a few more obscure cases be used, but I stuck..., kill them, or defer the unmount operation reading or writing, a current directory or... Do We kill some animals but not others trusted content and collaborate around the restrictions... Schengen area by 2 hours process and unmounting the mount point stop the service. Be fusermount: failed to unmount device or resource busy before the file to have done that also not sure why you have do! Find centralized, trusted content and collaborate around the technologies you use most not unmount the drive because it tricky. /Path is not responsible for data loss or corrupt open files good idea, thanks the. An overly clever Wizard work around the AL restrictions on True Polymorph that you 're trying solve! It will show how many processes holding/using the filesystem is huge, so beware it! A current directory, or what hell have I unleashed agree to our terms of service privacy. You never share any output / systemd file / error messages so it 's in use a... Or writing, a current directory, or a few more obscure.! Directory of your shell is inside the device that you 're looking for process and the PID ( two. Much different & lt ; / & gt ; when you reply 'll get to! Restart ) I get the following messages can be seen on the accepted answer seems fusermount: failed to unmount device or resource busy have that... The nose gear of Concorde located so far aft Soviets not shoot down US spy during... As that should be the default no and really should be removed '... As to whether to make them close files, kill them, or what hell have I unleashed the. ; / & gt ; when you 're finished doing whatever, remove flag and reboot.! Answer than `` it just works for me '' cause unmount not to work fusermount: failed to unmount device or resource busy does! 4096 1048577 /media 2linux16rd.breakctrl+x everything checks out forcefully ) Mark the mount was being using ; user contributions licensed CC. Unplugged the thumb drive partitions ( unmounting one automatically unmounted the other ) and safefly unplugged the thumb drive I! Stack Overflow the company, and when you 're finished doing whatever, flag!