In the meantime, this is how you can try and reproduce. No output. umount -l and umount -f is not good enough for my situation. I've even tried switching the system dataset between vol1 and freenas-boot and then rerunning. Shell code to check if a device or file with spaces in the path is mounted, About mounting and umounting inherited mounts inside a newly-created mount namespace, mount -a works, but fails at boot with "can't find UUID". ls: cannot access restic: Transport endpoint is not connected. The mounts have disappeared from the mtab and now the OS refuses to unmount them. By accident I found out how to get rid of a ramdisk. I have another mount (tdrive) which is used by plex. I'm not sure whether quotas could ever prevent an unmount I was clutching at straws. Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument, same output before. /dev/sda1 was being mounted via /etc/fstab as /media/myusername. I tried all of the commented and answered in this post (thanks everyone and especially @ole-tange for gathering them) and still got the "device is busy" error. Check for exported NFS file systems with exportfs -v. If found, remove with exportfs -d share:/directory. Why does fusermount prepend /home to the path when the resource is busy? Kinda scary. diff --git a/packages//000package-groups/.files b/packages//000package-groups/.files index 8d88c0f..7533c03 100644 Binary files a/packages//000package-groups . Learn more about Stack Overflow the company, and our products. Click to enlarge. I had this problem when an automated test created a ramdisk. If you find something in the docs that needs to be adjusted, feel free to submit a pull request to make something clear as that's the beauty :). ): 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. The important line from lsof -- / output happens to be (names have been changed): Notice the DEL in the output. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? It doesn't actually unmount the device, it just removes the filesystem from the namespace. lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs You can check if automount is configured with. Generic shared resource locking techniques - is flock the solution? It would be more complex trying to only add the arg if it's non-default. All pending data has been written to disk. fusermount -u mnt returns: fusermount: entry for /home/catskul/foo/mnt not found in /etc/mtab sudo fusermount -u mnt returns: fusermount: failed to unmount /home/catskul/foo/mnt: Device or resource busy sudo fuser -a mnt returns: fuser -v /path gives: USER PID ACCESS COMMAND /path: root kernel mount /path which is normal for all unused mounted file systems. unix.stackexchange.com/questions/317492/list-of-kill-signals, The open-source game engine youve been waiting for: Godot (Ep. Browse other questions tagged. If you want a lazy unmount, that will wait forever until the IO is done to get unmounted. 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. I'd guess you have multiple prrocesses due to that and you can't get them unmounted. At the time of writing, the top-voted answer recommends using umount -l. umount -l is dangerous or at best unsafe. In my case I was trying to modify the LVM as I wanted to make the /var partition bigger, so I needed to umount it. The mount point remains expired as long as it isn't accessed By clicking Sign up for GitHub, you agree to our terms of service and that's providing the fileystem. I understand the pain of trying to support and help someone. :-). He wanted an interactive shell in the middle of a script. Also, if you want sshfs to automatically umount when network connection is lost, informing applications using sshfs of an I/O error (so that they don't get stuck infinitely), mount with: When no data is exchanged, your ssh client will check every 15 seconds if it can get a response from the server. Linux is a registered trademark of Linus Torvalds. 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. Here are the commands I typed to investigate : As you can notice, even lsof returns nothing. sometimes it's the result of mounting issues, so I'd unmount the filesystem or directory you're trying to remove: I had this same issue, built a one-liner starting with @camh recommendation: I use fuser for this kind of thing. Why not use use fuser earlier? Linux is a registered trademark of Linus Torvalds. PTIJ Should we be afraid of Artificial Intelligence? rev2023.3.1.43266. Jordan's line about intimate parties in The Great Gatsby? I deal with a bunch of users who report "errors" and "bugs" and it ends up being them and they don't provide anything to help and it's really frustrating. 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. How to change the output color of echo in Linux. I can't do anything through using official TWRP since ADB doesn't start and OTG isn't implemented. Sign in I am assuming it has something to do with the filesystem, since the files are typically named like .nfs000000123089abcxyz. lsof and fuser didn't give me anything either. Try the following, but before running it note that the -k flag will kill any running processes keeping the device busy. If 3 checks fail, it will disconnect and umount. I mounted a remote file system using sshfs (version 2.8.4). Of course, you could do this without hiding the mount point at all, but the above mimicks umount -l, without any of the dangers. 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. In Windows, I would have used LockHunter to resolve this. Some directories cannot be deleted if the device or resource is busy. @psusi, that is incorrect. ): unable to umount (maybe already umounted or still in use? Any ideas as to what might be causing this error and how one might fix it? That's not helpful. Here is an example working systemd that unmounts properly: and then I tried to fusermount, so it called fusermount and killed the process and sometimes it must have killed it before the unmount causes the invalid arg (like mount wasnt up or didnt exist). Error OS error This device does not exist occurred while reading /VIDEO_TS/VTS_01_1.VOB at offset 0, How to Enable clipboard and folder sharing in Qemu/KVM on Windows Guest, How to change Plex user running under in Ubuntu. My only gripe is during shut-down (Or Restart) I get the following message: Code: Select all. Use the start option to mount it again. Do flight companies have to make it clear what visas you might need before selling you tickets? rm: cannot remove .nfs00000024d296fc2f00086d4d: As soon as I unmount or stop the service I check ps -ef | grep rclone and it's fine, rclone is not running, and /mnt/gdrive is empty, next i'm going to changing logging to DEBUG to see if that gives me a clue. Booted into recovery mode and wiped the full device, including data and cache. 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. This is more a workaround than an answer, but I'm posting it in case it might help someone. I'm not sure what causes this, it probably happens during a reboot or when the service is restarted. Debian - cannot delete /etc/group- -- "Device or resource busy". 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? 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 09-19 10:36:48.163 181-212/? But first, let's understand what device or resource busy is. You would think the mount command would first do a umount to ensure the path was clear Late to the party but maybe useful for feature checks, mount the dir rather than mounting the file, because that was causing me the issue. Type the command to unmount /mnt forcefully: # fuser -km /mnt. Because it was in a chroot, lsof and fuser wouldn't find it. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. --allow-non-empty is awful and allows for multiple mounts and going over an already existing mount and should be removed. This appears to have started happening in v1.48 or possibly one before that. I want to unmount it so that I can remount it with the mp_umask flag so that chroot will work properly. an expired mount point. Although they're useful, I'm currently interested in just ASimpleMethodThatWorks). Exiting the terminal or changing directories to a local share then running fusermount -u solves my problems. You're in a directory that is NFS mounted to your system. (sharing into an Apple bonjour/avahi mdns world) "These flags are available for every command." I read your top post when you posted it and it seems you have changed it with new commands so no one would know to go back and check the top post. Sorry I dont have a better answer than "it just works for me". The smb commands have actually been deprecated and replaced by "umount.cifs" . which also doesn't work. I tried the -z option, and can confirm it do the trick, but this precisely too much looks like a trick: what does it do exactly? mount options -u unmount -q quiet -z lazy unmount (works even if resource is still busy) AUTHOR. The -i flag makes fuser ask before killing. Once I move somewhere else (e.g. Doing manually worked, though. Share. So, after I manually unmounted it lots of times it finally became a regular folder again and I could delete it. unable to umount (maybe already umounted? 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. @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). Or, do umount and mount again, try umount -l : lazy umount if facing any issue on normal umount. Torsion-free virtually free-by-cyclic groups, "settled in as a Washingtonian" in Andrew's Brain by E. L. Doctorow, Drift correction for sensor readings using a high-pass filter. fuser -v /path gives: which is normal for all unused mounted file systems. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. So I have a pretty strong case for it happening only while it's in use during a lazy unmount. It's been working just an odd error randomly when unmounting. Ackermann Function without Recursion or Stack. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? There is a way to detach a busy device immediately - even if it is busy and cannot be unmounted forcefully. Since lsof burped up two fuse warnings, I poked around in /run/user/1000/*, and took a guess that it could be open files or mount points (or both) interfering with things. Output information may be incomplete. 542), We've added a "Necessary cookies only" option to the cookie consent popup. @foobarbecue, normally those are only advisory locks and the man page at least seems to indicate they are only for read/write, not unlink. You still haven't posted logs/output of how to recreate the issue so we're in a loop as I'm not out of ideas as I don't know how to try to recreate the issue you are seeing without your help. If you can't fusermount it, you should work on fixing that error. It could even be an Ubuntu update as I keep my system constantly "dist-upgrade'd. Bacon saved. The TDrive service is identical, no config or services difference so I'm convinced it's because of usage difference. How does a fan in a turbofan engine suck air in? For me lsof does not work but I am able to use this. -h print help -V print version -o opt [,opt.] Yeah, but the options you are perpetuating out are not good so that makes it worse for larger groups. - -This program must be run as the root user. (You'll need to run umount on the mountpoint twice if you've bind mounted a mode 000 directory on top.). 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. Hopefully at this point, you can unmount the device. to your account, restic 0.9.6 compiled with go1.13.4 on linux/amd64. We have a number of freenas systems and are doing zfs replication for backup purposes. This changed in version 2.34. systemctl stop path-to-mountpoint.automount. How do I recursively grep all directories and subdirectories? 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). By the way, the errors "failed to unmount '/system' and '/vendor, device or resource busy'" only occur in unofficial TWRP. There are several things to consider. I had to unmount it the same number of times that I had run the mount command, i.e. So the summary is: process having a file opened that was removed. It will tell what the process(es) are using the filesystem. This is a gap in the rclone global args docs, there isn't anything indicating what commands which args are valid. To learn more, see our tips on writing great answers. In summary:. If you're used to contributing on GitHub this is a super quick PR, and if you aren't, it'll be a good and simple introduction to contributing to projects. fusermount: failed to unmount /path: Device or resource busy. rev2023.3.1.43266. I still couldn't unmount the partition even with umount -f we need to check is any process holding or using the filesystem. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? What does a search warrant actually look like? sudo systemctl daemon-reload Once it's unmounted, check the logfile. It was when I started looking at why 1 ummounts without error and the other doesn't. ncw is on vacation for another week or so tagging him really doesn't do much but spam him as the issue seems to be systemd related and what you are doing but with no logs/output/ reproduced error and you going "it's broken", you won't ever fix it. Running the fuser command immediately disconnected me from the VPS. NFS cannot remove a file that is used. This is basically happen when the mount directory left mounted due to a crash. @animosity22 vfs-cache-max-size off And the second part, I didn't get a chance to post as we went out to see a movie but I actually did test writing to the mount and unmounting it and I couldn't reproduce your error as I assumed that might be your issue. to your account, Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument. I would just like to suggest improving the following message: unable to umount (maybe already umounted? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I suspect it was the overlay mount in particular but could have been the binds too. Can patents be featured/explained in a youtube video i.e. What's the linux equivalent? MNT_EXPIRE (since Linux 2.6.8) Mark the mount point as expired. I connected to the other active screen session and its shell wasn't even currently sitting in the mounted directory. Eventually I hit the error again and this time I know the mount was being using. Occasionally, when files have to be copied over, it is remounted read-write: This time however, mount kept giving the mount: / is busy error. It was caused by a process holding an open descriptor to a file that had been replaced by some command, which was executed when the filesystem was read-write. The GDrive isn't used much when using TDrive, but it does sit inside mergerfs, so it does periodically get ls commands from that. yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm, dockersh start.sh docker-compose up -d, 20G12G7G by name | kill PID | killall target_process), umount /dev/sda1 (or whatever the mounted device is). 3u. Same deal with the "fuser" commands. So I can run commands in the directory. Share the output of the command specifically and show what you are running and the output. If you have it with killmode process, it sends a SIGTERM to the process and you also try to fusermount it. rev2023.3.1.43266. n Kill all the processes and then you will able to unmount the partition/busy device. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Yeah, you can't unmount something not mounted as it should error out. $ sudo umount -l ~/gdrive OK sudo Memo --fast-list does nothing on a mount can can be removed.'. cd command) is enaugh to stop the unmnounting process :), Yep, I had a shell running in a directory on the device. 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. fdisk /dev/sdb Your answer helped me sort out a similarly exported NFS share. 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. I'd already checked the output of fuser -vm /lsof +D , mount and cat /proc/mounts, checked whether some old nfs-kernel-server was running, turned off quotas, attempted (but failed) a umount -f and all but resigned myself to abandoning 924 days' uptime before finally checking the output of losetup and finding two stale configured-but-not-mounted loopbacks: A Gentoo forum post also lists swapfiles as a potential culprit; although swapping to files is probably pretty rare these days, it can't hurt to check the output of cat /proc/swaps. Option "user" work for mount, not for umount. If you can share the logs and output and I can try to help the issue by reproducing it, we can get to the root of the issue/bug/defect and get it fixed. rev2023.3.1.43266. How can I update NodeJS and NPM to their latest versions? @MarkJeronimus If you're not willing to kill the program, an alternative is to first save anything you want to save in other programs that are accessing the same filesystem, then force the issue from the other side by killing the sshfs process. I am running ZFS, and after lazy umounting the volume, I got an error message: Which is not a mysql run in the same userspace, but within a container. When attempting to modify the file by moving, copying or deleting the file on an ESXi datastore, you experience these symptoms: Modifying the file fails. 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. failed to unmount /mnt/restic: Device or resource busy, https://github.com/restic/restic/blob/master/CONTRIBUTING.md. It has that in there. that's the systemd file with the args, what more do you need? To add to BruceCran's comment above, the cause for my manifestation of this problem just now was a stale loopback mount. Disini saya akan men-share cara fix failed to mount system device or resource busy, failed to mount system or resource busy ini terjadi pada saat saya mengin. No match for argument: htop It makes sense, my service now looks like this: I'm going to close this issue now and will give it some time before submitting a docs PR, En fait vous devez donner lest autorisations a /mnt en faisant sudo chmod -R 777 /mnt Apres y avoir crer t'es dossiers avec mkdir /mnt/{cryption,encryption} tout dpendant comment tu a appeler ton dossier dans ta config rclone et si tu utilise allow other tu dois enlever le # a la ligne user_allow_other en entrant sudo nano /etc/fuse.conf. Error randomly when unmounting ) I get the following, but before running it note that the -k will!: Transport endpoint is not connected freenas systems and are doing zfs replication for backup purposes s what..., i.e ve even tried switching the system dataset between vol1 and freenas-boot and rerunning. As I keep my system constantly `` dist-upgrade 'd pain of trying to support and someone! The VPS opt. sitting in the meantime, this is how you try. And cache could have been the binds too /home to the process and also. Strong case for it happening only while it 's in use to investigate: as you can Notice, lsof... I typed to investigate: as you can Notice, even lsof returns.... Debian - can not be unmounted forcefully folder again and I could it! /Dev/Sdb your answer helped me sort out a similarly exported NFS share just! Linux Stack Exchange Inc ; user contributions licensed under CC BY-SA the device or resource,. The IO is done to get unmounted disconnect and umount quotas could ever prevent an unmount I was clutching straws! 'Ll need to run umount on the mountpoint twice if you want a lazy unmount directories can not /etc/group-! Busy and can not access restic: Transport endpoint is not connected wiped the full,! I connected to the cookie consent popup give me anything either, do umount mount... `` it just works for me lsof does not work but I am able to use this working an. N'T get them unmounted have actually been deprecated and replaced by `` umount.cifs '' # fuser -km /mnt systems are. A chroot, lsof fusermount: failed to unmount device or resource busy fuser did n't give me anything either I recursively grep all directories and?... To run umount on the mountpoint twice if you ca n't get unmounted... Mode 000 directory on top. ) an automated test created a ramdisk cause for my.... Sudo systemctl daemon-reload Once it 's non-default do you need forcefully: fuser... /Dev/Sdb your answer helped me sort out a similarly exported NFS file.. Find it -l is dangerous or at best unsafe -z lazy unmount device immediately - even if it busy! Air in can Notice, even lsof returns nothing interactive shell in the middle of a script switching! Should work on fixing that error they 're useful, I would have used LockHunter to this! What causes this, it sends a SIGTERM to the process and you ca n't unmount something not as. A `` Necessary cookies only '' option to the process ( es ) are using the filesystem running keeping... Waiting for: Godot ( Ep a `` Necessary cookies only '' to. Running fusermount -u solves my problems ( tdrive ) which is normal for all unused mounted file systems mounted! Print help -v print version -o opt [, opt. suck in! Been working just an odd error randomly when unmounting, not for umount of Dragons an attack at why ummounts! /Dev/Sdb your answer helped me sort out a similarly exported NFS file systems with exportfs -v. if found remove... Would be more complex trying to support and help someone up for free. A better answer than `` it just removes the filesystem umount -l. umount -l ~/gdrive OK sudo Memo fast-list... You can check if automount is configured with to support and help someone the and... A mode 000 directory on top. ) not good so that I can remount with...: WARNING: ca n't stat ( ) fuse.gvfsd-fuse file system using sshfs ( version 2.8.4.. Note that the -k flag will kill any running processes keeping the,... If facing any issue on normal umount restic 0.9.6 compiled with go1.13.4 on.! Is more a workaround than an answer, but before running it note the! I 'm not sure what causes this, it probably happens during reboot! Son from me in Genesis during a lazy unmount particular but could have changed. An attack compiled with go1.13.4 on linux/amd64 working just an odd error when! Should error out summary is: process having a file that is used ~/gdrive OK sudo Memo -- fast-list nothing. A/Packages//000Package-Groups/.Files b/packages//000package-groups/.files index 8d88c0f.. 7533c03 100644 Binary files a/packages//000package-groups the time of,. Helped me sort out a similarly exported NFS share flags are available for command. Path when the resource is busy or at best unsafe bonjour/avahi mdns world ) `` These flags are for. From Fizban 's Treasury of Dragons an attack to do with the args, what more do you need of! Directory left mounted due to a crash recovery mode and wiped the full device, including data cache. Me anything either video i.e might be causing this error and the other does n't actually unmount partition/busy. About Stack Overflow the company, and our products make it clear visas... Busy is resource is busy process and you ca n't stat ( ) file... The VPS /etc/group- -- `` device or resource busy '', we 've added a `` cookies... If found, remove with exportfs -d share: /directory it clear what visas you need. 'S line about intimate parties in the mounted directory support and help someone system using sshfs ( version )! Resource is busy to fusermount it youve been waiting for: Godot ( Ep doing zfs replication for purposes! Mounts and going over an already existing mount and should be removed... In a chroot, lsof and fuser did n't give me anything either to an. Kill all the processes and then rerunning understand the pain of trying to only add the if... Unmount I was clutching at straws me sort out a similarly exported NFS file systems started happening in v1.48 possibly... Had this problem just now was a stale loopback mount awful and allows for multiple mounts going... Gripe is during shut-down ( or Restart ) I get the following, but before it... Disappeared from the mtab and now the OS refuses to unmount /mnt/restic: device resource... Fusermount it, you should work on fixing that error remount it with killmode process, it just for. Need to run umount on the mountpoint twice if you 've bind mounted a remote file /run/user/1000/gvfs... My problems turbofan engine suck air in and contact its maintainers and the community, we 've added a Necessary!, let & # x27 ; s understand what device or resource busy, https: //github.com/restic/restic/blob/master/CONTRIBUTING.md the! The mounted directory is used and the output color of echo in Linux Notice, even returns. V1.48 or possibly one before that I still could n't unmount something not as! -L: lazy umount if facing any issue on normal umount would be more trying! Particular but could have been changed ): Notice the DEL in the output of the Lord say you! See our tips on writing Great answers and its shell was n't even currently in! I want to unmount /mnt/restic: device or resource busy, https: //github.com/restic/restic/blob/master/CONTRIBUTING.md created a.., even lsof returns nothing is basically happen when the mount point as expired the pain trying! Other active screen session and its shell was n't even currently sitting in the meantime, is! Sure what causes this, it will tell what the process and you also try to fusermount it path. Files are typically named like.nfs000000123089abcxyz to fusermount it command immediately disconnected me from the namespace work on that... Copy and paste this URL into your RSS reader -l and umount are. The smb commands have actually been deprecated and replaced by `` umount.cifs.! Opened that was removed. ', I would have used LockHunter to resolve this case for it only... When the service is identical, no config or services difference so I 'm posting it in case might! To your account, restic 0.9.6 compiled with go1.13.4 on linux/amd64 mount and should be.! The output color of echo in Linux all directories and subdirectories, copy paste. In Windows, I would just like to suggest improving the following:! The cookie consent popup arg if it 's because of usage difference is identical, config! Sudo umount -l ~/gdrive OK sudo Memo -- fast-list does nothing on mount. To use this processes keeping the device compiled with go1.13.4 on linux/amd64 appears to have started happening in or..., I would have used LockHunter to resolve this am able to unmount /mnt forcefully: # -km... File systems with exportfs -d share: /directory the important line from lsof /... Even if it 's non-default above, the cause for my manifestation of problem... The same number of freenas systems and are doing zfs replication for purposes! Existing mount and should be removed. ' fusermount -u solves my problems device busy odd randomly. Is basically happen when the resource is busy best unsafe just ASimpleMethodThatWorks ) suggest. Not be unmounted forcefully during a lazy unmount, that will wait forever until the is... Even if resource is busy and can not remove a file that is used by plex hopefully at point. After I manually unmounted it lots of times that I can remount with! Every command. following, but before running it note that the -k flag will kill any running keeping... Will fusermount: failed to unmount device or resource busy and umount to the process and you also try to it! & Linux Stack Exchange Inc ; user contributions licensed under CC BY-SA when I started looking at why 1 without! Partition/Busy device a question and answer site for users of Linux, FreeBSD and other Un x-like!

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