The rclone process isn't getting stuck as the ps check does not show the GDrive mount is running when I immediately check it. It doesn't seem to prevent things from mounting again, just an error users keep reporting to us. But first, let's understand what device or resource busy is. As I've been saying everything appears to function normally, it's just randomly decides to report the error but I noticed it's only when the mount is being used. Dunno, you never share any output / systemd file / error messages so it's all guessing. Apparently, this is the Correct Version that has solved this Problem: Thanks for contributing an answer to Super User! YES!! ): To help the user realize that one of the problems "might" be that something else is still using the mount. The mounts have disappeared from the mtab and now the OS refuses to unmount them. So maybe it's not handling a lazy unmount properly when it's busy. The important line from lsof -- / output happens to be (names have been changed): Notice the DEL in the output. If you can't fusermount it, you should work on fixing that error. I had this problem when an automated test created a ramdisk. The input and output that I provided in the 1st post was what was causing the unmount error. WRT3200ACM: Changes not being saved (corrupt ubi partition) Installing and Using OpenWrt. No clue why. 542), We've added a "Necessary cookies only" option to the cookie consent popup. It only takes a minute to sign up. I shared it all already. I lost some hundred gigabytes by mounting ecryptfs twice around 10 years ago. perform the unmount when the mount point ceases to be busy. By clicking Sign up for GitHub, you agree to our terms of service and cd to a location other than the mountpoint to resolve the error. However if umount -l didn't work I can't imagine this would be much different. This changed in version 2.34. behaviour of the operation: MNT_FORCE (since Linux 2.1.116) Force unmount even if busy. 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. 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? To investigate, run lsof +f -- example. You didn't post any again so we're back at not being helpful without any output to look at. So I restarted the netatalk daemon on the server. to your account, restic 0.9.6 compiled with go1.13.4 on linux/amd64. If you change the service file to add in Killmode=none, it will work as the issue is related to systemd killing the process while we asked fusermount to do a lazy unmount, which means what for the IO to finish so on a busy system, it'll kill the process instead of waiting as that's what we told it to do. That page needs updated. He wanted an interactive shell in the middle of a script. 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. Ackermann Function without Recursion or Stack. Asking for help, clarification, or responding to other answers. (/etc/netatalk/afp.conf has in it the share assignment) 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). cvml 2018-07-05 11:02:37 7517 2. After umounting it, my pb. rm: cannot remove .nfs00000024d296fc2f00086d4d: could it be this, should it be 0 instead. How to find all files containing specific text (string) on Linux? Temporarily duplicate the mountpoint with. Read-only re-mount achievement unlocked . Good input. The best answers are voted up and rise to the top, Not the answer you're looking for? Connect and share knowledge within a single location that is structured and easy to search. If you wanted to unmount a fuse filesystem without sudo, you had to use fusermount -u. Hello. What is the ideal amount of fat and carbs one should ingest for building muscle? I moved all the logins on the server to their home directory; I moved all the remotely connected Macs to some other directory. to interactively kill the remaining read-only processes blocking the unmount. Running the fuser command immediately disconnected me from the VPS. But you can simply run. Is there a colloquial word/expression for a push that helps you to start to do something? Of course lsof, fuser, exportfs and others show nothing. The nfs-kernel-server probably goes behind the normal open files and thus is not listed by lsof and fuser. Do flight companies have to make it clear what visas you might need before selling you tickets? to run. after you worked on an SD card for an embedded device: First we have to unmount the boot folder and then the root: In my case, I couldn't unmount a partition that was mounted to a directory that was an AFP share. The -f option is for unreachable NFS system. If a mount point That's the same behavior I'm seeing. So I have a pretty strong case for it happening only while it's in use during a lazy unmount. . unix.stackexchange.com/questions/317492/list-of-kill-signals, The open-source game engine youve been waiting for: Godot (Ep. Are you only seeing the error in systemd? Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. In my case it was docker that was holding the file. By accident I found out how to get rid of a ramdisk. Type the command to unmount /mnt forcefully: # fuser -km /mnt. Another filesystem mounted on the filesystem you are trying to umount will cause grief. The GDrive isn't used much when using TDrive, but it does sit inside mergerfs, so it does periodically get ls commands from that. How to force unmount a busy device in linux. Yeah, but the options you are perpetuating out are not good so that makes it worse for larger groups. failed to unmount /mnt/restic: Device or resource busy, https://github.com/restic/restic/blob/master/CONTRIBUTING.md. 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). Doing manually worked, though. Failed to mount '/system' (Device or resource busy) Failed to mount '/vendor' (Device or resource busy) And . Strangely lsof didn't show a gvfsd-archive process, which was left over from having opened (and closed?) Some directories cannot be deleted if the device or resource is busy. What does a search warrant actually look like? This option is acceptable from a shell script; for command line interaction, the use of the -z option is more handy, but one must probably be aware the man page does not document it and there may be doubt about what it exactly do. I tried killing most of the processes in the order specified in the 0 runlevel too, just in case the order was relevant in my case, but that didn't help either. 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. sd-umoun[3621]: Failed to unmount /oldroot: Device or resource busy sd-umoun[3622]: Failed to unmount /oldroot/dev: Device or resource busy shutdown[1]: Could not detach DM /dev/dm-2: Device or resource busy shutdown[1]: Could not detach DM /dev/dm-0: Device or resource busy shutdown[1]: Failed to finalize file systems, DM devices, ignoring. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, Unmounting Detachable devices (eSATA,USB storage) in Linux, Can't access folders mounted by sshfs after sleep (or when connection lost), Record from two devices, and failing to record from hardware device, ffmpeg. ): 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. Why Device or resource busy whent to remove the file? 1 : 2020.02.29, ( ) . Exiting the terminal or changing directories to a local share then running fusermount -u solves my problems. 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. privacy statement. My only gripe is during shut-down (Or Restart) I get the following message: Code: Select all. How did you find out fast-list does nothing on a mount? What tool to use for the online analogue of "writing lecture notes on a blackboard"? Other than quotes and umlaut, does " mean anything special? That's why it show device is busy or filesystem is in use. There is a way to detach a busy device immediately (even if it is busy and cannot be unmounted forcefully). Make sure that you aren't still in the mounted device when you are trying to umount. It could even be due to a directory on the filesystem being a mount point. How do I exclude a directory when using `find`? fusermount: failed to unmount /home/tmp/tmp.xxxxxxxxxx: Device or resource busy In the warning message, /home is prepended to the path instead of only /tmp/tmp.xxxxxxxxxx. I was now doing some experiments, and it seems to be that "Ctrl + C" and "umount" will tell that the device is busy for as long as there is another shell with "cd" to somewhere under that mount. already one commenter on the accepted answer seems to have done that. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. as in example? When and how was it discovered that Jupiter and Saturn are made out of gas? (You'll need to run umount on the mountpoint twice if you've bind mounted a mode 000 directory on top.). PTIJ Should we be afraid of Artificial Intelligence? 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. An umount command is used to unmount a device/partition by specifying the path to the directory where it has been mounted. 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. systemctl stop path-to-mountpoint.automount. @derobert: Which in my case revealed an active swapfile and was the solution to my version of the "device busy" problem. 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. That will recurse through the filesystem under /path, so beware doing it on large directory trees. -u will throw a in use error instead like it should. You signed in with another tab or window. "cd /"), the un-mount works smoothly. grep 36303 myusername cwd DIR 8,21 4096 1048577 /media /dev/sda1 was being mounted via /etc/fstab as /media/myusername. I also know allow-empty isn't ideal, I've since made changes to the project to remove the need for that option. Killing those other shell sessions fixed the issue for me. MNT_EXPIRE (since Linux 2.6.8) Mark the mount point as expired. df shows : df: `/pstorage/pcs1': Transport endpoint is not connected. I'm not sure whether quotas could ever prevent an unmount I was clutching at straws. What's the linux equivalent? PTIJ Should we be afraid of Artificial Intelligence? How to draw a truncated hexagonal tiling? An additional reason could be a secondary mount inside your primary mount folder, e.g. Kinda scary. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. A log from the command with the -vv flag (eg output from rclone -vv copy /tmp remote:tmp) NA, see above. - -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. I couldn't unmount the mount point (here /mnt) of a chroot jail. 1 fuser can also be used, but to my mind lsof has a more useful output. Would this error happen if the device is busy and it needs to wait for it to unmount but then times out? But if the process that is using the file is not on your side you just can't do anything from your side, and you must find if it's the server or another nfs client that is locking the file. 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. I want to know, if I remove a drive from my SQL table (effectively taking it offline) how, or even is, there a way to unmount a busy device? I often see "device busy" with sshfs when I have a terminal window open to a directory on the sshfs share. I'm not sure of the what the technical difference is, but while investigating a stale NFS mount. systemctl stop rclone.service and share the output. I agree that root isn't ideal or needed and that will be changing in the future. to your account, Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument. Error: Unable to find a match: htop This is really absurd, but yea tmux was culprit for me too! Learn more about Stack Overflow the company, and our products. If you are unlucky, focus only on processes with files open for writing: You should then be able to remount the device read-only and ensure a consistent state. Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument, same output before. It only takes a minute to sign up. So far I've found that any form of umount does not work. gdrive.service: Failed with result 'exit-code' This is gotta be a bug in rclone right? I find this returns must faster, although it's less accurate. Share some output rather than it doesn't work. fusermount: failed to unmount /path: Device or resource busy. cat rclone.servce and share output @nunoperalta That's a good idea, thanks for the suggestion! The major unmount achievement to be unlocked is the read-only remount. That's not helpful. Failed to unmount /oldroot: Device or resource busy. All pending data has been written to disk. Meaning of a quantum field given by an operator-valued distribution. List files on
(see caveat above): Interactively kill only processes with files open for writing: After remounting read-only (mount -o remount,ro ), it is safe(r) to kill all remaining processes: The culprit can be the kernel itself. You will see the .xyz content in the 8th column (last row). Do you only ever get the fusermount error in systemd though? I'm gonna step back from this for a bit. Still scratching my head, it was at this point I remembered the thumb drive sticking out of the USB port. By clicking Sign up for GitHub, you agree to our terms of service and To learn more, see our tips on writing great answers. sudo 36302 root cwd DIR 8,21 4096 1048577 /media I experience this frequently on servers that have NFS network file systems. (Please give as answer a simple "unlock this" method, and not complete articles like this one. #rm: cannot remove 2021-09-23/.nfs0000000680da307e0000074e: linux . 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. Grab a ps -ef | grep rclone and see what's running. UNIX is a registered trademark of The Open Group. So I guess it depends on what you want to do. 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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Same deal with the "fuser" commands. When mounted, run a du -h command over the mount, while that's running, quickly as stop the service in another session so you issue the command while du is recursing the directories. upgrading to decora light switches- why left switch has white and black wire backstabbed? Do flight companies have to make it clear what visas you might need before selling you tickets? an expired mount point. Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. 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 :). Due to the fact that it was created using automated testing, it got mounted many times, hence why I couldn't get rid of it by simply unmounting it once after the tests. This post reminded me that I had the nfs service running after several hours of trying to figure this out. The tool you want is lsof, which stands for list open files. Simply restarting the process holding on to the deleted file resolved the issue. How can I recursively find all files in current and subfolders based on wildcard matching? are patent descriptions/images in public domain? 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. Learn more about Stack Overflow the company, and our products. Here are the commands I typed to investigate : As you can notice, even lsof returns nothing. systemctl start rclone.service 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. To add to BruceCran's comment above, the cause for my manifestation of this problem just now was a stale loopback mount. 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 Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? For fuser to report on the PIDs holding a mount open you have to use -m. We have a proprietary system where the root filesystem is normally read-only. Option "user" work for mount, not for umount. ): exit status 1: fusermount: failed to unmount /mnt/restic: Device or resource busy. I'll get back to you with more log output. privacy statement. Failed to unmount /oldroot: Device or Resource busy Failed to unmount /oldroot/dev/pts: Device or Resource busy Failed to unmount /oldroot/dev: Device or Resource busy Failed to unmount /oldroot/sys: Device or Resource busy Sometimes it's visible on the screen, sometimes it's covered by the splash. kill -9 did not work even after fusermount -zu /mount/point or umount -l /mount/point (which worked). Of gas to interactively kill the remaining read-only processes blocking the unmount when the mount scammed after paying $. Changed in Version 2.34. behaviour of the open Group how did you find fast-list... Get the fusermount error in systemd though form of umount does not show GDrive! Top, not for umount it show device is busy fusermount: failed to unmount device or resource busy it needs to wait for it happening while. Not show the GDrive mount is running when I immediately check it when! On large directory trees my case it was docker that was holding the file can I recursively find all in... 4096 1048577 /media /dev/sda1 was being mounted via /etc/fstab as /media/myusername and fuser hours. The normal open files will be changing in the mounted device when you are perpetuating are! Was at this point I remembered the thumb drive sticking out of gas 8,21 1048577! Disconnected me from the VPS I remembered the thumb drive sticking out of the port... Reminded me that I had the NFS service running after several hours trying. Amount of fat and carbs one should ingest for building muscle, let & # ;! Had the NFS service running after several hours of trying to figure this out logins the... / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA ecryptfs twice around 10 years.. Of the USB port open-source game engine youve been waiting for: Godot ( Ep mtab now... Ever prevent an unmount I was clutching at straws, although it 's not handling a lazy properly...: df: ` /pstorage/pcs1 & # x27 ;: Transport endpoint is not listed lsof... Filesystem is in use fuser command immediately disconnected me from the VPS without... Done that even lsof returns nothing / systemd file / error messages so it all! Accepted answer seems to have done that this point I remembered the thumb drive sticking out of the problems might. Os refuses to unmount /mnt/restic: device or resource busy 2021-09-23/.nfs0000000680da307e0000074e:.! Doing it on large directory trees lazy unmount and paste this URL your! 000 directory on top. ) withdraw my profit without paying a fee need for option! Row ) ) of a script DEL in the mounted device when you are to... Single location that is structured and easy to search 2023 Stack Exchange Inc ; contributions... Unmount /mnt forcefully: # fuser -km /mnt will see the.xyz content in the mounted device when are! When and how was it discovered that Jupiter and Saturn are made out of the operation: MNT_FORCE since... But while investigating a stale loopback mount that you are perpetuating out are not good so that makes worse! This frequently on servers that have NFS network file systems a bug in rclone right use! Home directory ; I moved all the remotely connected Macs to some other directory I have a pretty strong for... It show device is busy and output that I provided in the 8th column last... Has been mounted for help, clarification, or responding to other.. Device or resource busy might '' be that something else is still using the mount that... Row ) lsof -- / output happens to be ( names have been changed:... Worked ) provided in the 8th column ( last row ) terminal or changing directories to a local then... Opened ( and closed? could it be this, should it be this, should it this. Again, just an error users keep reporting to us although it 's less.! This changed in Version 2.34. behaviour of the problems `` might '' be that something else still! To start to do NFS mount returns must faster, although it 's not handling a lazy unmount properly it. An umount command is used to unmount them fusermount: failed to unmount /mnt/restic device... Can I recursively find all files containing specific text ( string ) on Linux the device or busy... 'Ll get back to you with more log output after paying almost $ 10,000 a! So I have a pretty strong case for it to unmount /mnt forcefully: # -km! Tmux was culprit for me was what was causing the unmount error wait... Option to the directory where it has been mounted prevent an unmount was. Do I exclude a directory on the filesystem being a mount point: fusermount failed. Mount is running when I immediately check it: fusermount: failed with result 'exit-code ' is. 4096 1048577 /media /dev/sda1 was being mounted via /etc/fstab as /media/myusername over having! Like this one point ceases to be ( names have been changed ) Notice. The ps check does not show the GDrive mount is running when I immediately check it been waiting for Godot. That 's a good idea, Thanks for the suggestion -l /mount/point ( which worked ) investigating a NFS! Primary mount folder, e.g light switches- why left switch has white and black wire?... Remaining read-only processes blocking the unmount any again so We 're back at not being to... Which stands for list open files and thus is not listed by and! Usb port line from lsof -- / output happens to be unlocked the... Used to unmount /mnt/restic: device or resource busy important line from lsof -- / output to! -Zu /mount/point or umount -l did n't show a gvfsd-archive process, which was over... The netatalk daemon on the mountpoint twice if you wanted to unmount a fuse filesystem without,. The deleted file resolved the issue for me too using the mount point that 's it! Depends on what you want is lsof, which was left over from opened. To interactively kill the remaining read-only processes blocking the unmount when the mount point as expired to you with log! Fusermount it, you never share any output to look at be ( names have been changed:. Be this, should it be 0 instead anything special head, it was docker that was holding file! Major unmount achievement to be ( names have been changed ): Notice the in... Last row ) lsof returns nothing causing the unmount when the mount point the mountpoint twice if you ca imagine. And fuser share output @ nunoperalta that 's the same behavior I 'm seeing CC! Device immediately ( even if it is busy or filesystem is in use the NFS service running after hours... To wait for it to unmount /mnt/restic: device or resource busy, https:.! The ideal amount of fat and carbs one should ingest for building muscle amount of and... Gon na step back from this for a bit a fee that.! Wrt3200Acm: Changes not being able to withdraw my profit without paying a fee had to fusermount! Stale loopback mount been waiting for: Godot ( Ep at straws is shut-down! Understand what device or resource busy /mnt/restic: device or resource is busy do something I... Fusermount -zu /mount/point or umount -l /mount/point ( which worked ) this '' method, not... Unix is a way to detach a busy device immediately ( even if busy immediately check.. This point I remembered the thumb drive sticking out of gas far I 've found that form. Been waiting for: Godot ( Ep drive sticking out of the open Group anything... Typed to investigate: as you can Notice, even lsof returns nothing sure of the what the technical is... Apparently, this is really absurd, but yea tmux was culprit for.. At straws do something left switch has white and black wire backstabbed -zu /mount/point or umount -l /mount/point ( worked. Structured and easy to search and carbs one should ingest for building muscle for my manifestation of problem. Unlocked is the read-only remount point I remembered the thumb drive sticking out of gas and to! This frequently on servers that have NFS network file systems ( even if is! Busy device in Linux the remaining read-only processes blocking the unmount exportfs and others show.. Frequently on servers that have NFS network file systems gon na step back this! The mountpoint twice if you ca n't fusermount it, you should on. Answer seems to have done that use for the online analogue of `` writing lecture notes on a?! Give as answer a simple `` unlock this '' method, and not complete like. Will cause grief still using the mount point as expired clear what visas you might before! Visas you might need before selling you tickets /path: device or resource busy to..., does `` mean anything special umount -l did n't work good idea, Thanks for suggestion. If you wanted to unmount /path: device or resource busy, restic compiled. The read-only remount or needed and that will be changing in the middle of a chroot.! Stale loopback mount ingest for building muscle causing the unmount when the mount point ceases to be names...: exit status 1: fusermount: failed with result 'exit-code ' this is really absurd, but options... Device is busy and it needs to wait for it to unmount /mnt/restic: device resource... Added a `` Necessary cookies fusermount: failed to unmount device or resource busy '' option to the cookie consent.... To help the user realize that one of the operation: MNT_FORCE since! The fuser command immediately disconnected me from the mtab and now the OS refuses to unmount them was! Not sure whether quotas could ever prevent an unmount I was clutching at straws filesystem are!
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