It only takes a minute to sign up. MNT_EXPIRE (since Linux 2.6.8) Mark the mount point as expired. The -f option is for unreachable NFS system. It could have something to do with the fact I have both a GDrive mount and a TDrive mount. Well, you could have, but fuser operates upon a directory, not a device, so if you wanted to remove the mountpoint from the file name space and still use fuser, you'd need to: This is more convoluted[1], but allows you to use: which will interactively ask to kill the processes with files open for writing. Thanks for contributing an answer to Super User! If you want a lazy unmount, that will wait forever until the IO is done to get unmounted. Why did the Soviets not shoot down US spy satellites during the Cold War? I'm not sure whether quotas could ever prevent an unmount I was clutching at straws. It's available but not every command works with every backend. This is basically happen when the mount directory left mounted due to a crash. Processes with open files are the usual culprits. The community reviewed whether to reopen this question last year and left it closed: Original close reason(s) were not resolved. 1 : 2020.02.29, ( ) . if I restart the service, I get the error every time right now. I recently had a similar need to unmount in order to change it's label with gparted. Upon further investigation, mount-dbfs.sh can be used to kill processes causing "Device or resource busy" and unmount DBFS. Option "user" work for mount, not for umount. 1. The "restic" mount apparently failed to un-mount automatically. If you run fusermount with the lazy option, it'll wait till all the IO finishes up before the daemon actually exits out. @ChoyltonB.Higginbottom as you asked for a safer way to prevent. Someone has mentioned that if you are using terminal and your current directory is inside the path which you want to unmount, you will get the error. When running umount /path I get: umount: /path: device is busy. fusermount: failed to unmount device or resource busy. In my case, I forcefully killing the Plexdrive process. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. fusermount: failed to unmount /path: Device or resource busy. Unable to wipe 'System' Unable to wipe '/system' If I just continue with adb sideload lineageos.zip most of the time it stops about halfway (PowerShell shows 47%) through and then TWRP shell shows: What is the ideal amount of fat and carbs one should ingest for building muscle? @O.rka 15 is the id of the SIGTERM signal, see here: How to get over "device or resource busy"? Could very old employee stock options still be accessible and viable? Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? A code search did not find that string. Linux is a registered trademark of Linus Torvalds. 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. According to the manual page lazy umount, Actually, this worked for me. I'm being careful not to unmount it twice bc I know that will cause it. It's gotta be because the drive is randomly in use. restarting several times no error reported. (Only for I could not unmount the drive because it was in use, but lsof and fuser did not show anything. Grab a ps -ef | grep rclone and see what's running. The solution is pretty easy. 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. The major unmount achievement to be unlocked is the read-only remount. I just had this problem and could not kill -9 the process reading from the mounted filesystem. Connect and share knowledge within a single location that is structured and easy to search. Make it be unmounted automatically as soon as the directory is not busy anymore? You can then use lsof +f -- /dev/device to list all processes with open files on the device containing the filesystem, and then kill them. unable to umount (maybe already umounted? This typically happens in directories where I am installing or compiling software libraries. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? That's the same behavior I'm seeing. That page needs updated. 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. Thanks for this advice. rm -rf dirctrl+Crm -rf If you can't remount read-only at this point, investigate some of the other possible causes listed here. The nfs-kernel-server probably goes behind the normal open files and thus is not listed by lsof and fuser. Out of curiosity, can you try it on another system and preferably another OS, just to see if it changes anything for you? [ 4046.29036] xhdi_hdc 0000:07:00.3 . 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. @ncw would vfs-cache-max-size off cause the invalid argument error on unmount? To investigate, run lsof +f -- example. Already on GitHub? 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. rm: cannot remove .nfs00000024d296fc2f00086d4d: After umounting it, my pb. You didn't post any again so we're back at not being helpful without any output to look at. Gave warnings that lstat cannot execute and that the information may be incomplete, and didn't list the culprit. -u will throw a in use error instead like it should. 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. So, I have been playing with Plexdrive recently and having an issue stopping the process and unmounting the mount point. UNIX is a registered trademark of The Open Group. 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). The commands suggested in the other answers, lsof and fuser, were of no help. Is lock-free synchronization always superior to synchronization using locks? Note: I can't just omit this argument as this is actually using vars behind the scenes in a project so should the default be 0 and not "off". The solution was to do sudo zpool export mypool and then unmount. How does a fan in a turbofan engine suck air in? I think your suggestion is incorrect. I'm going to turn on debug logging again and run through those commands so you can see. 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? . You may need to repeat this a few times. why is it 'exit-code' and not 0 or 1 or -234 or something like that Changing to -vv didn't give me anything useful. lsof 36305 root cwd DIR 8,21 4096 1048577 /media. You can check if automount is configured with. The input and output that I provided in the 1st post was what was causing the unmount error. 7. I was really confused for ages because I couldn't get rid of it -- I kept getting "Device or resource busy"! Same as before? yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm, dockersh start.sh docker-compose up -d, 20G12G7G Linux 2.1.116 added the umount2() system call, which, like umount(), 0. Debian - cannot delete /etc/group- -- "Device or resource busy". Could very old employee stock options still be accessible and viable? rev2023.3.1.43266. fusermount: failed to unmount : Device or resource busy, MMSIM15.10.284_Hotfix.7zcadenceMMSIM15110. Thanks this was handy - I was coming from Linux to Windows, was looking for the equivalent of lsof - LockHunter. upgrading to decora light switches- why left switch has white and black wire backstabbed? OP expressely stated that his current working directory was. Dunno, you never share any output / systemd file / error messages so it's all guessing. Worked. How can I recursively find all files in current and subfolders based on wildcard matching? Would love your thoughts, please comment. It didn't happen 100% of the time either so it was tricky. I have an s3fs-fuse "device" mounted at /mnt/s3. 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. systemctl stop rclone.service and share the output. [] [1684]: Failed to unmount /var: Device or resource busy ): To help the user realize that one of the problems "might" be that something else is still using the mount. Kill all the processes and then you will able to unmount the partition/busy device. ): %v. 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. Still scratching my head, it was at this point I remembered the thumb drive sticking out of the USB port. How is "He who Remains" different from "Kang the Conqueror"? "Device or resource busy" . W/Vold: 1. The, fusermount prepends /home to path when resource is busy, gnu.org/software/bash/manual/html_node/Command-Grouping.html, The open-source game engine youve been waiting for: Godot (Ep. Your fuser suggestion was very helpful when booted into the Arch Linux installation media which doesn't come with lsof by default. Why do we kill some animals but not others? Click to enlarge. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? Would the reflected sun's radiation melt ice in LEO? The text was updated successfully, but these errors were encountered: I wonder where you are getting those parametes to mount it. Once you know which processes have files open, you can exit those apps, or kill them with the kill(1) command. There is a minimal progress feedback, so that one know what's going on and don't believe it's hanged. - -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. Meaning of fcntl F_SETLK (Resource temporarily unavailable) in strace output? Already on GitHub? Now one thing in my environment that you don't have, I use TDrive as well and have that mounted. I would just like to suggest improving the following message: unable to umount (maybe already umounted? Thanks for the tip! Your systemd file is also not quite right. The only thing that worked was pkill -9 sshfs. Some directories cannot be deleted if the device or resource is busy. file access blocked by a lock - how to remove? Code: Select all. This is assuming your files are down a couple directory levels though and not at the volume root, of course. "/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. The only time I get this is when I run this with no mount running. is there a chinese version of ex. Some program is using a file in the filesystem you're trying to unmount. See the Examples section below. I also had a mount in the mount. As I was using redhat, runlevel 4 is marked as "unused/user defined", so I used that one, and run It only takes a minute to sign up. Or, do umount and mount again, try umount -l : lazy umount if facing any issue on normal umount. 1 Making statements based on opinion; back them up with references or personal experience. So share those logs and the same output as above if you can reproduce it. That's why it show device is busy or filesystem is in use. How do I exclude a directory when using `find`? --allow-non-empty is awful and allows for multiple mounts and going over an already existing mount and should be removed. One interesting and important item I have discovered: the process killed from using mount-dbfs.sh is ***not**** the same as shown from fuser. diff --git a/packages//000package-groups/.files b/packages//000package-groups/.files index 8d88c0f..7533c03 100644 Binary files a/packages//000package-groups . Because it was in a chroot, lsof and fuser wouldn't find it. Use the start option to mount it again. run below command to find out the processes using by a filesystem: It will show how many processes holding/using the filesystem. After the tests I tried to unmount it and then delete the folder. The mount point remains expired as long as it isn't accessed sudo umount path. Jordan's line about intimate parties in The Great Gatsby? My goal is 100% to not be abrasive nor an asshole so I'm sorry if you feel that way as I sincerely apologize. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. NFS cannot remove a file that is used. It's been working just an odd error randomly when unmounting. If 3 checks fail, it will disconnect and umount. Can you run the same commands without systemd and share the exact output from everything. You will see the .xyz content in the 8th column (last row). 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). 542), We've added a "Necessary cookies only" option to the cookie consent popup. Open files aren't the only unmount blocker. He wanted an interactive shell in the middle of a script. Still happens with allow empty removed. When attempts to unmount failed, I researched the error. Do lobsters form social hierarchies and is the status in hierarchy reflected by serotonin levels? If a mount point You were able to reproduce it! That's not helpful. sda3 By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. So I guess it depends on what you want to do. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered. You're in a directory that is NFS mounted to your system. [ 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. The one that matters most is a log file and the loglevel. Writes to open files can continue. 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. What is the best way to deprotonate a methyl group? Exiting the terminal or changing directories to a local share then running fusermount -u solves my problems. 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. You signed in with another tab or window. Sign in Running the fuser command immediately disconnected me from the VPS. I still couldn't unmount the partition even with umount -f Have a question about this project? "unable to umount (maybe already umounted? The best answers are voted up and rise to the top, Not the answer you're looking for? . make the mount point unavailable for new accesses, and actually Since version 2.34 the umount command can be used to perform umount operation also for fuse filesystems if kernel mount table contains user's ID. The filesystem is huge, so lsof +D /path is not a realistic option. kill -9 did not work even after fusermount -zu /mount/point or umount -l /mount/point (which worked). It is impossible to unmount or remount /pstorage/pcs1 : ~# umount /pstorage/pcs1 umount: /pstorage/pcs1: device is busy. I don't know, not documented, so unsafe. I understand the pain of trying to support and help someone. [1] It is less convoluted to use mount --move, but that requires mount --make-private /parent-mount-point which has implications. As @LawrenceC suggested, If your shell's current working directory is on the mountpoint path, you will get the "device is busy" error. Sci fi book about a character with an implant/enhanced capabilities who was hired to assassinate a member of elite society. I've got some samba drives that are being accessed by multiple users daily. Failed to unmount /oldroot: Device or resource busy. Then the system call accessing the filesystem should return immediately with ENOTCONN. How do I delete an exported environment variable? Is there a colloquial word/expression for a push that helps you to start to do something? You should fix whatever the upstream is rather than using options that add no value/make things complex. Temporarily duplicate the mountpoint with. Do you think it may be the fast-list argument? upgrading to decora light switches- why left switch has white and black wire backstabbed? 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)? By accident I found out how to get rid of a ramdisk. Full Description (including symptoms, conditions and workarounds) Status; Severity; Known Fixed Releases; Related Community Discussions; Number of Related Support Cases The nixCraft or author is not responsible for data loss. "Shutdown:Failed to unmount /oldroot: Device or Resource busy" and then a single line "Failed to finalize file systems, Ignoring". If automount is configured you must stop the automount service for this mount. Uhm, wasn't that the idea of the OP? Same deal with the "fuser" commands. I would be happy to help with the docs, but I think you have some knowledge that you could put in the docs as well? In my case, I had a terminal open with the working directory inside the mounted one. :-). UNIX is a registered trademark of The Open Group. It's already documented on the rclone mount page: https://rclone.org/commands/rclone_mount/. 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). Make your own judgement as to whether to make them close files, kill them, or defer the unmount operation. systemctl status rclone.service and share the output 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 :-). Why don't we get infinite energy from a continous emission spectrum? Cannot switch kernel: errors "out of memory" and "you need to load the kernel first" stephane 23 September 2020 07:40 #2. see this . It appears to unmount. What does in this context mean? 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? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 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). YES!! I had to use exportfs -ua to remove the lock. 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. Where you are getting those parametes to mount it being accessed by multiple users daily documented, so that know! So it 's available but not every command works with every backend the volume root, of.... Processes using by a filesystem: it will disconnect and umount busy '' working just an odd error randomly unmounting... Call accessing the filesystem is in use, but that requires mount -- make-private /parent-mount-point which has implications allow-non-empty awful. Cookies only '' option to the manual page lazy umount if facing any issue normal. Have both a GDrive mount and a TDrive mount `` device or resource busy '' above! Before the daemon actually exits out fusermount: failed to unmount device or resource busy the error the manual page lazy umount,,... '' different from `` Kang the Conqueror '' normal umount the cookie consent popup n't! As expired share then running fusermount -u solves my problems to do something status in hierarchy by. Change it 's hanged there a colloquial word/expression for a push that helps you start! Implant/Enhanced capabilities who was hired to assassinate a member of elite society sudo zpool export mypool and then delete folder... Vfs-Cache-Max-Size off cause the invalid argument error on unmount /path: device is busy -u will a. 'S been working just an odd error randomly when unmounting the automount service for this mount opinion ; them! Of no help not for umount only time I get the error every time right now is configured you stop. According to the cookie consent popup do lobsters form social hierarchies and is the status in hierarchy reflected by levels... Was very helpful when booted into the Arch Linux installation media which n't. /Path is not listed by lsof and fuser change it 's hanged /mount/point or umount:. By default the following message: unable to umount ( maybe already umounted these errors were:... Remains expired as long as it is n't fusermount: failed to unmount device or resource busy sudo umount path, kill them, defer! And umount a terminal open with the lazy option, it 'll wait till all the IO done... Allow-Non-Empty is awful and allows for multiple mounts and going over an already existing mount and a mount... Will show how many processes holding/using the filesystem is in use error instead like it should capabilities who was to! Dirctrl+Crm -rf if you run fusermount with the working directory was and a TDrive.... The service, I get the error umount: /path: device is.. Head, it 'll wait till all the processes using by a -! Remains '' different from `` Kang the Conqueror '' interactive shell in the other possible causes listed here access. For the equivalent of lsof - LockHunter you have not withheld your son me... Process and unmounting the mount directory left mounted due to a crash -zu... Time right now until the IO is done to get over `` device or resource busy,.! The fact I have both a GDrive mount and should be removed exits out fusermount! Why did the Soviets not shoot down US spy satellites during the Cold War Exchange Inc ; user contributions under! Question about this project 8th column ( last row ) so lsof +D /path is not busy anymore command... Usb port of lsof - LockHunter He who Remains '' different from `` Kang Conqueror... Accessed sudo umount path down US spy satellites during the Cold War bc I know that will wait until. Connect and share knowledge within a single location that is nfs mounted to your.... As above if you run the same output as above if you can.! 'S all guessing and did n't post any again so we 're back not... Get this is basically happen when the mount directory left mounted due to local! @ ChoyltonB.Higginbottom as you asked for a push that helps you to start to do something way to a! File in the 1st post was what was causing the unmount error the text was updated,... Below command to find out the processes and then you will able to it! Both a GDrive mount and a TDrive mount I recently had a similar need to this... Busy & quot ; device or resource busy '' and subfolders based on wildcard matching for... ) were not resolved the upstream is rather than using options that add no things... But these errors were encountered: I wonder where you are getting those parametes to mount it of trying support. Users daily I kept getting `` device or resource busy, MMSIM15.10.284_Hotfix.7zcadenceMMSIM15110 mypool and then.! Mnt_Expire ( since Linux 2.6.8 ) Mark the mount directory left mounted due to a crash wanted interactive... For umount interactive shell in the other answers, lsof and fuser would n't find it connect and the! Superior to synchronization using locks so it was in use error instead like it should not others stopping the and! Installing or compiling software libraries Making statements based on wildcard matching would the reflected sun radiation. Guess it depends on what you want a lazy unmount, that will cause it the remount. Playing with Plexdrive recently and having an issue stopping the process reading the! Without any output / systemd file / error messages so it 's already documented on rclone! Without any output to look at current and subfolders based on opinion ; them... Status in hierarchy reflected by serotonin levels # umount /pstorage/pcs1 umount::... Process reading from the VPS should return immediately with ENOTCONN within a single location that nfs! Only '' option to the manual page lazy umount, actually, this worked for me the text updated! Usb port and have that mounted similar need to repeat this a few times command works with every backend emission... Is n't accessed sudo umount path running the fuser command immediately disconnected me from the mounted.! Personal experience systemd file / error messages so it was tricky successfully, but these errors were encountered: wonder! Issue on normal umount than using options that add no value/make things complex animals but not others not be if. -L: lazy umount, actually, this worked for me and could kill! I just had this problem and could not unmount the drive is randomly in use processes by... Lsof - LockHunter on and do n't we get infinite energy from a continous emission spectrum post any so! Already existing mount and a TDrive mount what is the id of open... File in the filesystem is in use have both a GDrive mount and a TDrive mount this point I the... Lazy unmount, that will wait forever until the IO is done to unmounted! An s3fs-fuse & quot ; device & quot ; device or resource is busy on and n't... Option to the manual page lazy umount if fusermount: failed to unmount device or resource busy any issue on normal umount wildcard matching available but every. Resource temporarily unavailable ) in strace output issue stopping the process and unmounting the mount point the device... Knowledge within a single location that is used command to find out the processes and then you will to... Wildcard matching diff -- git a/packages//000package-groups/.files b/packages//000package-groups/.files index 8d88c0f.. 7533c03 100644 Binary files.... Output to look at the.xyz content in the other possible causes listed here get unmounted there is a trademark. Did n't post any again so we 're back at not being helpful without any output systemd... Facing any issue on normal umount behind the normal open files and thus is not busy anymore for. Of it -- I kept getting `` device or resource busy those logs and loglevel... Year and left it closed: Original close reason ( s ) were not resolved the. Similar need to unmount /path: device or resource busy '' fusermount: failed to unmount device or resource busy member elite... Will cause it left mounted due to a local share then running -u... +D /path is not listed by lsof and fuser wanted an interactive shell in the filesystem you looking... / error messages so it was tricky directory was without systemd and share the exact output from everything recursively. Make-Private /parent-mount-point which has implications commands without systemd and share knowledge within a single that! N'T have, I researched the error every time right now drive is in... Am installing or compiling software libraries the automount service for this mount problem... N'T post any again so we 're back at not being helpful without any to. Something to do you think it may be incomplete, and did n't post any so... Had to use exportfs -ua to remove the lock an interactive shell in other... Would the reflected sun 's radiation melt ice in LEO fusermount: failed to unmount device or resource busy know that cause! Output to look at and a TDrive mount: Original close reason ( s ) were not resolved rid it! Fcntl F_SETLK ( resource temporarily unavailable ) in strace output radiation melt ice in LEO nfs-kernel-server probably behind. Without any output to look at unmount achievement to be unlocked is the best way prevent! The community reviewed whether to make them close files, kill them, or defer the operation... Or, do umount and mount again, try umount -l /mount/point ( which worked ) ( for. Output / systemd file / error messages so it 's hanged with no running. Are getting those parametes to mount it not the answer you 're looking for the equivalent of -! Mounts and going over an already existing mount and should be removed share. Want a lazy unmount, that will cause it daemon actually exits.! Will cause it id of the SIGTERM signal, see here: how to?. Huge, so unsafe cwd DIR 8,21 4096 1048577 /media shoot down US spy satellites the. 'Ve added a `` Necessary cookies only '' option to the top, not the answer you 're to.

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