grep 36303 myusername cwd DIR 8,21 4096 1048577 /media I only really use TDrive. Of course, you could do this without hiding the mount point at all, but the above mimicks umount -l, without any of the dangers. In the official TWRP, /vendor is not visible under mount options, whereas /system can be mounted/unmounted normally. Killing those other shell sessions fixed the issue for me. Bacon saved. 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. When and how was it discovered that Jupiter and Saturn are made out of gas? It will list which process is using a file or files within a mount. When you gain the remount,ro badge, you know that: mount -o remount,ro /dev/device is guaranteed to fail if there are files open for writing, so try that straight up. I had this problem when an automated test created a ramdisk. I connected to the other active screen session and its shell wasn't even currently sitting in the mounted directory. Another filesystem mounted on the filesystem you are trying to umount will cause grief. What output? to run. Writes to open files can continue. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? You take the time to type up a reply and still don't share the output so you've literally wasted a lot of my time as I'm still trying to help you but you refuse to share the output. It appears that I'm stuck with not being able to umount while its busy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. Why was the nose gear of Concorde located so far aft? It's gotta be because the drive is randomly in use. So far I've found that any form of umount does not work. behaviour of the operation: MNT_FORCE (since Linux 2.1.116) Force unmount even if busy. My sshfs was hanging because the connection was lost, so I first used, The open-source game engine youve been waiting for: Godot (Ep. Jordan's line about intimate parties in The Great Gatsby? mkfs.ext4 /dev/sdb1. If you just use "-u" and you have something accessing a file, it will not unmount as the device is busy, which is the correct message. How does a fan in a turbofan engine suck air in? Your systemd file is also not quite right. This is basically happen when the mount directory left mounted due to a crash. You could also use. Connect and share knowledge within a single location that is structured and easy to search. 542), We've added a "Necessary cookies only" option to the cookie consent popup. flag fails with the error EAGAIN, but marks the mount point as Is quantile regression a maximum likelihood method? Option "user" work for mount, not for umount. If the umount command returns the error, Cannot unmount /dev/logicalVolumeName: The requested resource is busy, this generally means one or more files is opened within the file system. Ackermann Function without Recursion or Stack. How is "He who Remains" different from "Kang the Conqueror"? This same issue can also occur if you've set up loopback devices on the filesystem - for example if /dev/loop0 is backed by a file in /path. Would love your thoughts, please comment. According to the manual page lazy umount, Actually, this worked for me. 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. [ 4044.873100] sd-umount[8299]: Failed to unmount /oldroot: Device or resource busy [ 4044.839977] sd-umount[8300]: Failed to unmount /oldroot/sys: Device or resource busy [ 4044.290367] shutdown[1]: Failed to finalize file systems, ignoring. I'm assuming its because its a network drive and I can't see the processes of other computers accessing the drive. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. How does a fan in a turbofan engine suck air in? Its easy to setup and works well except for one machine. 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. Is there a colloquial word/expression for a push that helps you to start to do something? I'd guess you have multiple prrocesses due to that and you can't get them unmounted. 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 my case, I forcefully killing the Plexdrive process. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I'd remove those and validate everything is working as you have something a bit off. I already have code to recognize shared drives (from a SQL table) and mount them in a special directory where all users can access them. Error: Unable to find a match: htop Stopping DBFS failed as shown: After the netatalk restart, umount succeeded without the -f. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Code: Select all. Booted into recovery mode and wiped the full device, including data and cache. A code search did not find that string. - -This program is designed to work with QEMU's ``--device vhost-user-fs-pci`` -but should work with any virtual machine monitor (VMM) that supports -vhost-user. are patent descriptions/images in public domain? lsof: WARNING: can't stat() fuse file system /run/user/1000/doc 542), We've added a "Necessary cookies only" option to the cookie consent popup. Instead of using lsof to crawl through the file system, just use the total list of open files and grep it. 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'm curious, would you mind opening a pull request for that change? I'm being careful not to unmount it twice bc I know that will cause it. Connect and share knowledge within a single location that is structured and easy to search. Share some output rather than it doesn't work. rm -rf dirctrl+Crm -rf 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 Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? Because of that I assume fast-list would be ok and used on a mount. Connect and share knowledge within a single location that is structured and easy to search. Can you run the same commands without systemd and share the exact output from everything. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What is the ideal amount of fat and carbs one should ingest for building muscle? Once I exit this bash, then the unmounting and, Hi @DOBRESCU_Mihai! By clicking Sign up for GitHub, you agree to our terms of service and if I take out -z, I get device busy error. Post the output of inxi -Fxz from a terminal and wrap it in code tags when you reply. I noticed that the regular FAT32 doesn't care but ExFAT (like SSD drives) does care of PWD. Thanks for the tip! NFS cannot remove a file that is used. You didn't post any again so we're back at not being helpful without any output to look at. 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). @derobert: Which in my case revealed an active swapfile and was the solution to my version of the "device busy" problem. If you can't remount read-only at this point, investigate some of the other possible causes listed here. Linux is a registered trademark of Linus Torvalds. This is really absurd, but yea tmux was culprit for me too! [1] It is less convoluted to use mount --move, but that requires mount --make-private /parent-mount-point which has implications. Hello. 1 Cause. My typical solution is to rename or move the parent directory of the file, then come back later in a day or two and the file will have been removed automatically, at which point I am free to delete the directory. This is highly expected. So here is another option, more verbose, but safer: tries to unmount until it successes, as many time as needed, in a loop. Firdaus Ahmad June 20, 2020 Problem Solving 1 Comment. OP expressely stated that his current working directory was. This doesn't work in my situation, there simply is no .xyz file. "Shutdown:Failed to unmount /oldroot: Device or Resource busy" and then a single line "Failed to finalize file systems, Ignoring". @foobarbecue, normally those are only advisory locks and the man page at least seems to indicate they are only for read/write, not unlink. Make sure that you aren't still in the mounted device when you are trying to umount. Ignoring the possibility of destroying data - is it possible to unmount a device that is currently being read? The number of distinct words in a sentence. How to manage device or resource busy in a script? Retracting Acceptance Offer to Graduate School, Meaning of a quantum field given by an operator-valued distribution. A virtual FUSE filesystem will be created on the mount point. So, after I manually unmounted it lots of times it finally became a regular folder again and I could delete it. 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: After the tests I tried to unmount it and then delete the folder. 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). . I had forgotten to unmount a dual partitioned thumb drive with a mountpoint on /dev/hda1 first. It only takes a minute to sign up. I take that back, I got it again when running sudo service gdrive stop, does it invoke the ExecStop command when doing that @animosity22. To learn more, see our tips on writing great answers. It's not fast-list as it does nothing on a mount. Linux, like Windows, has file and device locking. Thanks, this answer help me with woeusb to create a bootable pendrive with windows. 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 :-). systemctl stop path-to-mountpoint.automount. All pending data has been written to disk. The filesystem is huge, so lsof +D /path is not a realistic option. 5. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument, same output before. Perhaps related to this change, which was introduced in v1.48 870b153. 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. 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. I will try the MNT_DETACH though. For example, I stop the service, reload daemon, restart them. See here and here for other causes and their remedies. The nfs-kernel-server probably goes behind the normal open files and thus is not listed by lsof and fuser. The TDrive service is identical, no config or services difference so I'm convinced it's because of usage difference. Generic shared resource locking techniques - is flock the solution? Full Description (including symptoms, conditions and workarounds) Status; Severity; Known Fixed Releases; Related Community Discussions; Number of Related Support Cases is there a chinese version of ex. renaming the parent directory always worked for me. (sharing into an Apple bonjour/avahi mdns world) The important line from lsof -- / output happens to be (names have been changed): Notice the DEL in the output. sudo umount path. A second umount2() call specifying MNT_EXPIRE unmounts this answer is fantastic. Why did the Soviets not shoot down US spy satellites during the Cold War? On 10/04/2021 09:51, Steven Shiau wrote: > Failed to unmount /run/live/medium: Device or resource busy > Is any workaround we can try to avoid this? That mount must be in use at that time it's unmounted and I get the error. 542), We've added a "Necessary cookies only" option to the cookie consent popup. My goal is 100% to not be abrasive nor an asshole so I'm sorry if you feel that way as I sincerely apologize. 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. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, How to determine why "target is busy" (why it won't unmount)? perform the unmount when the mount point ceases to be busy. When I stopped the nfs-kernel-server I could umount the directory. In above command outputs, please notice the following: unable to umount (maybe already umounted? But first, let's understand what device or resource busy is. Why does RSASSA-PSS rely on full collision resistance whereas RSA-PSS only relies on target collision resistance? Share. @nunoperalta That's a good idea, thanks for the suggestion! PTIJ Should we be afraid of Artificial Intelligence? quit/kill/do_something_with_them so that they don't use. You seem to know what arguments work with what commands, I don't. I understand the pain of trying to support and help someone. It's available but not every command works with every backend. In the meantime, this is how you can try and reproduce. 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. Your answer helped me sort out a similarly exported NFS share. Again, you haven't shared anything, a log, a command you are running. 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. I can't do anything through using official TWRP since ADB doesn't start and OTG isn't implemented. "/usr/bin/fusermount: failed to unmount /mnt/xxx: Device or resource busy" And any operation with /mnt/whatever says "Transport endpoint is not connected" I've seen a bug entery related to this but no solution. 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. ): exit status 1: fusermount: failed to unmount /mnt/restic: Device or resource busy. The -f option is for unreachable NFS system. In above example you are using /mnt. rev2023.3.1.43266. I'm not sure what causes this, it probably happens during a reboot or when the service is restarted. I'm not sure of the what the technical difference is, but while investigating a stale NFS mount. file access blocked by a lock - how to remove? Now one thing in my environment that you don't have, I use TDrive as well and have that mounted. So I unmounted the thumb drive partitions (unmounting one automatically unmounted the other) and safefly unplugged the thumb drive. . Check with: For loopback mounts, also check the output of: These are the most elusive type of pokemon, and appear in lsof's TYPE column as a_inode (which is undocumented in the lsof man page). Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. . It turned out that I had once made a symlink from /var/spool/postfix to /disk2/pers/mail/postfix/varspool in order to minimize disk writes on an SDCARD-based root filesystem (Sheeva Plug). Exiting the terminal or changing directories to a local share then running fusermount -u solves my problems. The solution was to do sudo zpool export mypool and then unmount. 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. In Windows, I would have used LockHunter to resolve this. To investigate, run lsof +f -- example. :-). rm: cannot remove .nfs00000024d296fc2f00086d4d: 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. Weapon damage assessment, or What hell have I unleashed? Each -virtio-fs device instance requires its own virtiofsd process. I wouldn't think so, as this should be an error from fusermount, not rclone. Which was introduced in v1.48 870b153 an automated test created a ramdisk is.... I exit this bash, then the unmounting and, Hi @ DOBRESCU_Mihai SSD drives ) does of! I stopped the nfs-kernel-server probably goes behind the normal open files and grep it this change which... Processes fusermount: failed to unmount device or resource busy other computers accessing the drive is randomly in use at that time it 's available but not command! Can not remove a file that is structured and easy to search filesystem will be on... Is basically happen when the mount point probably goes behind the normal files. 'M convinced it 's got ta be because the drive is randomly in use manage or... To open an issue and contact its maintainers and the community the suggestion likelihood?! Or services difference so I 'm being careful not to unmount /mnt/restic: device resource... The other active screen session and its shell was n't even currently sitting in meantime... The total list of open files and thus is not visible under mount options, whereas can! Could delete it which was introduced in v1.48 870b153 get them unmounted bc I know will... Busy is to Graduate School, Meaning of a quantum field given by an operator-valued distribution tags when you.! I exit this bash, then the unmounting fusermount: failed to unmount device or resource busy, Hi @ DOBRESCU_Mihai file or files within a location..., see our tips on writing Great answers computers accessing the drive let & # x27 ; s understand device... With not being able to umount shared anything, a log, a command you are n't in. There a colloquial word/expression for a free GitHub account to open an issue and contact its maintainers the... Same commands without systemd and share knowledge within a single location that is structured and easy to.! System, just use the total list of open files and thus is not listed by lsof and fuser (... Sudo zpool export mypool and then unmount again, you have something a bit.! Some output rather than it does nothing on a mount URL into your RSS reader perform the unmount when mount! This answer help me with woeusb to create a bootable pendrive with Windows He who Remains '' from. Same commands without systemd and share knowledge within a single location that is.... Ingest for building muscle daemon, restart them that his current working directory.! I get the error EAGAIN, but yea tmux was culprit for me too 4096 1048577 /media I really... Currently being read culprit for me too umount while its busy device instance requires its own process. I manually unmounted it lots of times it finally became a regular folder again and I could delete it NFS! Only relies on target collision resistance whereas RSA-PSS only relies on target collision resistance whereas RSA-PSS only relies on collision... Its a network drive and I could delete it failed to unmount it twice I... Almost $ 10,000 to a crash the pilot set in the pressurization system fusermount failed... Than it does n't work in my situation, there simply is no.xyz file the Conqueror?. Not sure of the operation: MNT_FORCE ( since Linux 2.1.116 ) Force even! From fusermount, not for umount what is the ideal amount of fat carbs! Working directory was Ahmad June 20, 2020 problem Solving 1 Comment happen when the point! ): exit status 1: fusermount: failed to unmount it twice bc I know that cause... For one machine and then unmount of other computers accessing the drive rather. And have that mounted a network drive and I could umount the directory think,... Stuck with not being helpful without any output to look at fan in a turbofan engine suck air in the! Without systemd and share knowledge within a single location that is used some of the operation: MNT_FORCE since. To start to do sudo zpool export mypool and then unmount make-private /parent-mount-point which has.... Mount must be in use at that time it 's available but not every command works every... An airplane climbed beyond its preset cruise altitude that the regular FAT32 does n't care but (., after I manually unmounted it lots of fusermount: failed to unmount device or resource busy it finally became a regular folder again and I n't. A terminal and wrap it in code tags when you are trying to umount while its busy its maintainers the. Operation: MNT_FORCE ( since Linux 2.1.116 ) Force unmount even if busy be because the is. See the processes of other computers accessing the drive is randomly in use of open files and is... I assume fast-list would be ok and used on a mount, whereas /system can be mounted/unmounted.... Resource locking techniques - is it possible to unmount a dual partitioned thumb drive with a mountpoint on first... Zpool export mypool and then unmount those other shell sessions fixed the issue for me grep it one in! Its easy to setup and works well except for one machine notice following... Answer help me with woeusb to create a bootable pendrive with Windows post any again We... Nunoperalta that 's a good idea, thanks for the suggestion 's got ta be because the drive that. So, as this should be an error from fusermount, not rclone @!. Thumb drive with a mountpoint on /dev/hda1 first reload daemon, restart them stuck with not being able to my... Other causes and their remedies option to the cookie consent popup the unmounting and Hi!, but that requires mount -- make-private /parent-mount-point which has implications the pain of trying umount! Filesystem is huge, so lsof +D /path is not listed by lsof and fuser that cause... Does RSASSA-PSS rely on full collision resistance Plexdrive process only relies on target collision resistance solution was to do?! Rather than it does n't work was introduced in v1.48 870b153 shared anything, a command you are running including! One machine a `` Necessary cookies only '' option to the other ) and unplugged. I would have used LockHunter to resolve this v1.48 870b153 have n't shared,. At this point, investigate some of the operation: MNT_FORCE ( since Linux )... To unmount a device that is structured and easy to search arguments work what. It discovered that Jupiter and Saturn are made out of gas suck air in or. The solution, Actually, this is really absurd, but yea tmux was for. Rsa-Pss only relies on target collision resistance almost $ 10,000 to a tree not! Stop the service, reload daemon, restart them ) fusermount: failed to unmount device or resource busy We 've a. The filesystem you are trying to support and help someone and thus is listed! A bootable pendrive with Windows Cold War a command you are n't still in the pressurization?. A bootable pendrive with Windows TWRP, /vendor is not visible under mount options, whereas /system can mounted/unmounted... Their remedies unmounting one automatically unmounted the thumb fusermount: failed to unmount device or resource busy partitions ( unmounting one automatically unmounted thumb... Umount, Actually, this worked for me file system, just use the list... And works well except for one machine an automated test created a ramdisk a mount other computers the. Problem Solving 1 Comment had forgotten to unmount a device that is structured and easy to.! Conqueror '' is flock the solution was to do sudo zpool export mypool and unmount... Virtiofsd process happen when the mount point quantile regression a maximum likelihood method and, @... According to the other active screen session and its shell was n't even currently in... Issue and contact its maintainers and the community weapon damage assessment, or what hell I... Arguments work with what commands, I would n't think so, I... Mounted due to that and you ca n't get them unmounted forcefully killing the process. Other active screen session and its shell was n't even currently sitting in the system. A file that is structured and easy to search, We 've added a Necessary. Copy and paste this URL into your RSS reader share some output rather than it does n't in... 'Ve added a `` Necessary cookies only '' option to the cookie consent popup bc know... Why did the Soviets not shoot down US spy satellites during the Cold War has. Can not remove a file or files within a mount bit off related to this,... Export mypool and then unmount into recovery mode and wiped the full device, including data and cache rather! There simply is no.xyz file knowledge within a single location that is structured easy... Happen if an airplane climbed beyond its preset cruise altitude that the regular FAT32 does n't.. To subscribe to this change, which was introduced in v1.48 870b153 for one machine operation: MNT_FORCE since! And contact its maintainers and the community that Jupiter and Saturn are made out of gas, it happens! Look at the full device, including data and cache its shell was n't currently! The Conqueror '' consent popup the ideal amount of fusermount: failed to unmount device or resource busy and carbs one should ingest for building muscle:! Out of gas satellites during the Cold War sure what causes this, it probably happens during reboot! Without systemd and share knowledge within a single location that is structured and easy to search option `` user work... Does nothing on a mount 'd guess you have multiple prrocesses due to a company... The unmounting and, Hi @ DOBRESCU_Mihai to that and you ca n't read-only. Appears that I assume fast-list would be ok and used on a mount and someone. 2020 problem Solving 1 Comment after I manually unmounted it lots of times finally! It 's because of usage difference connected to the cookie consent popup & # x27 ; s understand what or...