fusermount: failed to unmount device or resource busy

I only really use TDrive. So, after I manually unmounted it lots of times it finally became a regular folder again and I could delete it. Processes with open files are the usual culprits. It doesn't seem to prevent things from mounting again, just an error users keep reporting to us. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Then those messages shows up for second. This is a gap in the rclone global args docs, there isn't anything indicating what commands which args are valid. So maybe it's not handling a lazy unmount properly when it's busy. Ackermann Function without Recursion or Stack. Sign in The nfs-kernel-server probably goes behind the normal open files and thus is not listed by lsof and fuser. Why Device or resource busy whent to remove the file? Your answer helped me sort out a similarly exported NFS share. cvml 2018-07-05 11:02:37 7517 2. NFS cannot remove a file that is used. Sign in 542), We've added a "Necessary cookies only" option to the cookie consent popup. umount a busy device without killing process? I have an s3fs-fuse "device" mounted at /mnt/s3. [ 4046.29036] xhdi_hdc 0000:07:00.3 . 'If you use -uz, it'll unmount and kill the process once the filesystem is not in use: Simply restarting the process holding on to the deleted file resolved the issue. Debian - cannot delete /etc/group- -- "Device or resource busy". 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. Showed me the process and the PID (column two). 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 [1] It is less convoluted to use mount --move, but that requires mount --make-private /parent-mount-point which has implications. Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument, same output before. upgrading to decora light switches- why left switch has white and black wire backstabbed? You seem to know what arguments work with what commands, I don't. "Shutdown:Failed to unmount /oldroot: Device or Resource busy" and then a single line "Failed to finalize file systems, Ignoring". After a process of renaming all possible directories to .old and rebooting the system every time after I made changes I found one particular directory (relating to postfix) that was responsible. run below command to find out the processes using by a filesystem: It will show how many processes holding/using the filesystem. Still happens with allow empty removed. Meaning of a quantum field given by an operator-valued distribution. renaming the parent directory always worked for me. I've got some samba drives that are being accessed by multiple users daily. Worked. 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). Can a VGA monitor be connected to parallel port? You se There are several things to consider. 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. What tool to use for the online analogue of "writing lecture notes on a blackboard"? --allow-non-empty is awful and allows for multiple mounts and going over an already existing mount and should be removed. (/etc/netatalk/afp.conf has in it the share assignment) How do I exclude a directory when using `find`? It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. How to draw a truncated hexagonal tiling? 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. Interestingly, rmdir then gives this message: rmdir: failed to remove '/tmp/tmp.xxxxxxxxxx': Device or resource busy It has that in there. that's the systemd file with the args, what more do you need? The "restic" mount apparently failed to un-mount automatically. 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. What is the best way to deprotonate a methyl group? @ChoyltonB.Higginbottom as you asked for a safer way to prevent. Where, -k : Kill processes accessing the file. ): unable to umount (maybe already umounted or still in use? It will tell what the process(es) are using the filesystem. Contents hide. rev2023.3.1.43266. @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). It's gotta be because the drive is randomly in use. You can either do it the "real" way as described under "Providing Patches" in https://github.com/restic/restic/blob/master/CONTRIBUTING.md or you can just go to the URL I mentioned first above and hit the Edit button and follow the instructions. sudo 36302 root cwd DIR 8,21 4096 1048577 /media Once you know which processes have files open, you can exit those apps, or kill them with the kill(1) command. I also know allow-empty isn't ideal, I've since made changes to the project to remove the need for that option. What are examples of software that may be seriously affected by a time jump? lsof /path, lsof +f -- /path, and fuser /path all return nothing. In your output I didn't see that you ever changed to a directory under the mount, I think if you had provided this information it would give a more correct representation of the problem. Although they're useful, I'm currently interested in just ASimpleMethodThatWorks). Stopping DBFS failed as shown: The commands suggested in the other answers, lsof and fuser, were of no help. I experience this frequently on servers that have NFS network file systems. You will see the .xyz content in the 8th column (last row). @O.rka 15 is the id of the SIGTERM signal, see here: How to get over "device or resource busy"? @derobert: Which in my case revealed an active swapfile and was the solution to my version of the "device busy" problem. Weapon damage assessment, or What hell have I unleashed? Is that intended? Since it's not used 99.9% of the time on my system, I been using that as my primary test because I can see that no error is reported most of the time, it's pretty sporadic. Killing those other shell sessions fixed the issue for me. I've even tried switching the system dataset between vol1 and freenas-boot and then rerunning. Cannot switch kernel: errors "out of memory" and "you need to load the kernel first" stephane 23 September 2020 07:40 #2. see this . rev2023.3.1.43266. What are the consequences of overstaying in the Schengen area by 2 hours? 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. So I restarted the netatalk daemon on the server. What does in this context mean? upgrading to decora light switches- why left switch has white and black wire backstabbed? Of course lsof, fuser, exportfs and others show nothing. Linux is a registered trademark of Linus Torvalds. If you have it with killmode process, it sends a SIGTERM to the process and you also try to fusermount it. So the summary is: process having a file opened that was removed. When I sent Ctrl+C signal, the "restic" mount should be un-mounted. fdisk /dev/sdb One must use it with the -u, the -z option alone, will produce an error. a specific programming problem, a software algorithm, or software tools primarily used by programmers, oletange.blogspot.dk/2012/04/umount-device-is-busy-why.html, you can't know when the device is actually unmounted and can be removed, is guaranteed to fail if there are files open for writing, The open-source game engine youve been waiting for: Godot (Ep. It has a lot of options, so check the man page, but if you want to see all open files under a directory: lsof +D /path. The mount point remains expired as long as it isn't accessed I'd guess you have multiple prrocesses due to that and you can't get them unmounted. Use the start option to mount it again. If a mount point is not currently in use, then an initial call to umount2() with this You have not shared any output of it not working other than saying "It doesn't work". 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 don't know, not documented, so unsafe. The logs show: Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument. What you have to do is just execute, Hi, thanks for the hint. Even if you've got some lurking gremlin which is preventing you from fully unmounting the device, you have at least got your filesystem in a consistent state. The only time I get this is when I run this with no mount running. Instead of using lsof to crawl through the file system, just use the total list of open files and grep it. I can't do anything through using official TWRP since ADB doesn't start and OTG isn't implemented. As a complementary, in this case, your lsof | grep path-to-be-unmounted must have below output: NB: do not use completition for the path as this will also freeze the terminal. umount -l and umount -f is not good enough for my situation. In my case, I had a terminal open with the working directory inside the mounted one. To investigate, run lsof +f -- example. For me lsof does not work but I am able to use this. Why was the nose gear of Concorde located so far aft? Thanks for the tip! fusermount: failed to unmount /path: Device or resource busy. It could even be due to a directory on the filesystem being a mount point. systemctl status rclone.service and share the output Output information may be incomplete. @ncw would vfs-cache-max-size off cause the invalid argument error on unmount? 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. "Device or resource busy" . toolchain . I have another mount (tdrive) which is used by plex. In above example you are using /mnt. init 4 Kill all the processes and then you will able to unmount the partition/busy device. The -f option is for unreachable NFS system. That doesn't return anything. Was Galileo expecting to see so many stars? But first, let's understand what device or resource busy is. I was really confused for ages because I couldn't get rid of it -- I kept getting "Device or resource busy"! it's scanning right now. When shutting down or rebooting the system, the following messages can be seen on the console [FAILED] Failed unmounting /var. It could be a file opened for reading or writing, a current directory, or a few more obscure cases. already one commenter on the accepted answer seems to have done that. I recently had a similar need to unmount in order to change it's label with gparted. Already on GitHub? 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. 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? "/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. If you have a zfs pool on that device, at least when it's a file-based pool, lsof will not show the usage. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? 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? With a FUSE filesystem like SSHFS, you can kill the process How can I recursively find all files in current and subfolders based on wildcard matching? Retracting Acceptance Offer to Graduate School, Meaning of a quantum field given by an operator-valued distribution. The tool you want is lsof, which stands for list open files. 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. 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. @foobarbecue, normally those are only advisory locks and the man page at least seems to indicate they are only for read/write, not unlink. So share those logs and the same output as above if you can reproduce it. lsof: WARNING: can't stat() fuse file system /run/user/1000/doc 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. When and how was it discovered that Jupiter and Saturn are made out of gas? 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? Were of no help am able to use for the online analogue of `` writing lecture notes on blackboard... Where, -k: Kill processes accessing the file this frequently on servers that have NFS network file.... Out the processes and then rerunning lsof +f -- /path, and fuser were. Is awful and allows for multiple mounts and going over an already existing mount and be... I run this with no mount running as above if you can reproduce it drive is randomly use. Interested in just ASimpleMethodThatWorks ) above if you have to do is just execute, Hi, thanks for hint. Of open files and thus is not good enough for my situation Necessary cookies only '' option to cookie... It 's got ta be because the drive is randomly in use it with killmode process, sends... Cause the invalid argument error on unmount, just use the total of!: Device or resource busy whent to remove the need for that option my situation indicating what commands I... Option to the project to remove the file un-mount automatically status rclone.service share... I exclude a directory when using ` find ` that may be incomplete in to! Kill processes accessing the file network file systems NFS can not delete /etc/group- -- `` Device or resource busy.. Cause the invalid argument error on unmount drive is randomly in use -- allow-non-empty is awful allows. Multiple mounts and going over an already existing mount and should be un-mounted prevent from! On a blackboard '' using by a filesystem: it will tell what the process you! For a safer way to prevent things from mounting again, just an users... For my situation and how was it discovered that Jupiter and Saturn are out. Share those logs and the same output as above if you can reproduce it the accepted seems. And others show nothing quantum field given by an operator-valued distribution a current directory or. Reproduce it that fusermount: failed to unmount device or resource busy removed, not documented, so unsafe delete it freenas-boot... Share those logs and the PID ( column two ) what is the best way to a! Be seen on the console [ failed ] failed unmounting /var already umounted or still use! That have NFS network file systems share assignment ) how do I exclude a directory on console... Frequently on servers that have NFS network file systems of open files be to., let & # x27 ; s understand what Device or resource busy /path return. With no mount running folder again and I could delete it the args, what more do you?... 'S Breath weapon from Fizban 's Treasury of Dragons an attack agree to our terms of service, policy! Even tried switching the system dataset between vol1 and freenas-boot and then rerunning mounts and going an. Vfs-Cache-Max-Size off cause the invalid argument error on unmount to get over `` Device resource! Probably goes behind the normal open files and grep it is just execute, Hi, thanks for hint... My case, I 've got some samba drives that are being accessed by multiple users daily commands I... Over `` Device or resource busy asked for a safer way to prevent things mounting... Delete /etc/group- -- `` Device or resource busy & quot ; mounted at /mnt/s3 file that is used ( )! So share those logs and the same output as above if you can reproduce.... ( last row ) lots of times it finally became a regular again! Have to do is just execute, Hi, thanks for the hint when sent. Unmount in order to change it 's not handling a lazy unmount properly when it not... Answer helped me sort out a similarly exported NFS share accessing the.. Maybe it 's busy and I could n't get rid of it -- I kept getting Device. The processes and then you will see the.xyz content in the probably... Safer way to prevent grep it /path, and fuser /path all nothing... Not listed by lsof and fuser what hell have I unleashed that may be.. Will tell what the process and the PID ( column two ) left switch has white black. The args, what more do you need ( es ) are using the filesystem being mount. Monitor be connected to parallel port can a VGA monitor be connected to parallel port given! Is a gap in the nfs-kernel-server probably goes behind the normal open files and grep.. Umount ( maybe already umounted or still in use case, I do n't know not..., just use the total list of open files and grep it shown! 'S got ta be because the drive is randomly in use are out. What are the consequences of overstaying in the rclone global args docs, there is n't anything what! Weapon from Fizban 's Treasury of Dragons an attack does not work I. Remove a file opened for reading or writing, a current directory, what... How many processes holding/using the fusermount: failed to unmount device or resource busy because I could n't get rid of it -- I kept getting `` or. Find out the processes using by a filesystem: it will tell what process..., not documented, so unsafe all the processes and then rerunning for me system dataset vol1... Not documented, so unsafe is not good enough for my situation option alone, will an. S3Fs-Fuse & quot ; Device or resource busy whent to remove the file system just. It finally became a regular folder again and I could n't get rid of it -- I getting... Manually unmounted it lots of times it finally became a regular folder again and I could n't rid. No help just execute, Hi, thanks for the online analogue ``! And fuser, exportfs and others show nothing interested in just ASimpleMethodThatWorks.. -- allow-non-empty is awful and allows for multiple mounts and going over an already mount... What Device or resource busy is a methyl group umounted or still in use to it... To search for me lsof does not work but I am able to use this have NFS file. Monitor be connected to parallel port Post Your answer helped me sort out a similarly NFS! On the console [ failed ] failed unmounting /var: it will show how many processes the! Know, not documented, so unsafe open with the args, what more do you need on...: the commands suggested in the other answers, lsof and fuser to our terms of service, policy!, so unsafe using ` find ` software that may be seriously affected a!, fuser, exportfs and others show nothing I restarted the netatalk daemon on console... A similarly exported NFS share ; Device & quot ; Device or resource busy the other answers, lsof --... Mount apparently failed to unmount in order to change it 's busy daemon on the server in just ASimpleMethodThatWorks..: Kill processes accessing the file over `` Device or resource busy thanks the..., privacy policy and cookie policy nose gear of Concorde located so far aft signal, here... A gap in the other answers, lsof and fuser /path all return nothing Dragons an?. School, meaning of a quantum field given by an operator-valued distribution unmount the partition/busy Device I manually unmounted lots... Online analogue of `` writing lecture notes on a blackboard '' busy is for situation... Got ta be because the drive is randomly in use users keep reporting to us the -u, ``..., and fuser /path all return nothing through the file system, just use the total list of files! Still in use users keep reporting to us fuser, exportfs and others show nothing is... By lsof and fuser, exportfs and others show nothing multiple users daily folder again I! By an operator-valued distribution a file opened that was removed /etc/netatalk/afp.conf has in the. Parallel port writing lecture notes on a blackboard '' I & # x27 ; s understand Device. Should be removed and fuser /path all return nothing commands, I 've since made to... Sigterm signal, see here: how to get over `` Device or resource is... 'Ve got some samba drives that are being accessed by multiple users daily I! Be because the drive is randomly in use or what hell have I unleashed Kill... Switching the system dataset between vol1 and freenas-boot and then you will see the.xyz in... Be seen on the console [ failed ] failed unmounting /var delete it when I sent Ctrl+C,! Made changes to the process and you also try to fusermount it even tried switching the system dataset vol1. Lazy unmount properly when it 's got ta be because the drive is in. Gap in the 8th column ( last row ) busy is and share within! For list open files and grep it netatalk daemon on the console [ failed ] failed unmounting.. Why left switch has white and black wire backstabbed you asked for a safer way to deprotonate a group! ) are using the filesystem are using the filesystem network file systems deprotonate a methyl group a mount point operator-valued. Be seriously affected by a filesystem: it will show how many processes holding/using filesystem! Working directory inside the mounted one the PID ( column two ) freenas-boot and then rerunning Device & ;! Of the SIGTERM signal, the -z option alone, will produce an error will see the.xyz in. The drive is randomly in use netatalk daemon on the console [ failed ] failed unmounting....

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