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. (/etc/netatalk/afp.conf has in it the share assignment) 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? It would be more complex trying to only add the arg if it's non-default. In the meantime, this is how you can try and reproduce. This is assuming your files are down a couple directory levels though and not at the volume root, of course. When attempts to unmount failed, I researched the error. df: '/mnt/restic': Transport endpoint is not connected. So always try that first before potentially wasting time on further troubleshooting. fusermount: failed to unmount : Device or resource busy. . Full Description (including symptoms, conditions and workarounds) Status; Severity; Known Fixed Releases; Related Community Discussions; Number of Related Support Cases lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs I moved all the logins on the server to their home directory; I moved all the remotely connected Macs to some other directory. So I have a pretty strong case for it happening only while it's in use during a lazy unmount. that's providing the fileystem. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Basically, if the mountpoint is mounted under the / filesystem, you'd want to avoid this. How To Fix Failed To Mount ('/System_Root, '/Vendor & More (Invalid Argument & Resource Busy)Don't Forget To Like, Comment, Share And Subscribe To My And You. By clicking Sign up for GitHub, you agree to our terms of service and 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: I recently had a similar need to unmount in order to change it's label with gparted. By clicking Sign up for GitHub, you agree to our terms of service and 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. It was caused by a process holding an open descriptor to a file that had been replaced by some command, which was executed when the filesystem was read-write. Make sure that you aren't still in the mounted device when you are trying to umount. 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. "unable to umount (maybe already umounted? Meaning of fcntl F_SETLK (Resource temporarily unavailable) in strace output? Now one thing in my environment that you don't have, I use TDrive as well and have that mounted. Learn more about Stack Overflow the company, and our products. kill -9 did not work even after fusermount -zu /mount/point or umount -l /mount/point (which worked). Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. I'd guess you have multiple prrocesses due to that and you can't get them unmounted. My goal is 100% to not be abrasive nor an asshole so I'm sorry if you feel that way as I sincerely apologize. if I take out -z, I get device busy error. The -i flag makes fuser ask before killing. Because it was in a chroot, lsof and fuser wouldn't find it. How to manage device or resource busy in a script? @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). privacy statement. cd to a location other than the mountpoint to resolve the error. restarting several times no error reported. You may be feeling lucky, punk! How to change the output color of echo in Linux. Where, -k : Kill processes accessing the file. What does in this context mean? This doesn't work in my situation, there simply is no .xyz file. You seem to know what arguments work with what commands, I don't. I'm assuming its because its a network drive and I can't see the processes of other computers accessing the drive. 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. But first, let's understand what device or resource busy is. [] [1683]: Remounting '/var' read-only in with options 'seclabel,attr2,inode64,noquota'. Failed to mount oldroot: Device or resource busy Installation & Boot. Is that intended? 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. It is impossible to unmount or remount /pstorage/pcs1 : ~# umount /pstorage/pcs1 umount: /pstorage/pcs1: device is busy. All pending data has been written to disk. I'm not sure of the what the technical difference is, but while investigating a stale NFS mount. Once it's unmounted, check the logfile. The major unmount achievement to be unlocked is the read-only remount. There is a way to detach a busy device immediately (even if it is busy and cannot be unmounted forcefully). If you already ensured no process is still using the filesystem before trying "regular" umounting: It helped me when I lost network connection and couldn't umount the unresponsive sshfs mount point. It would be interesting to know where those mysterious files are coming from. Killing those other shell sessions fixed the issue for me. Here it was a /mnt/dev bind to /dev that I had created to be able to repair my system inside from the chroot jail. I find this returns must faster, although it's less accurate. Other than that - thanks! So, I have been playing with Plexdrive recently and having an issue stopping the process and unmounting the mount point. . If you have a zfs pool on that device, at least when it's a file-based pool, lsof will not show the usage. Congratulations, your data on the mountpoint is now consistent and protected from future writing. Thanks though! I'm gonna step back from this for a bit. 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 are examples of software that may be seriously affected by a time jump? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 09-19 10:36:48.163 181-212/? sudo 36302 root cwd DIR 8,21 4096 1048577 /media Are you only seeing the error in systemd? Unfortunately the result is: fusermount: failed to unmount /mnt/s3: Device or resource busy. 10. That doesn't return anything. I want to unmount it so that I can remount it with the mp_umask flag so that chroot will work properly. You're in a directory that is NFS mounted to your system. 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. failed to unmount /mnt/restic: Device or resource busy, https://github.com/restic/restic/blob/master/CONTRIBUTING.md. Kinda scary. However if umount -l didn't work I can't imagine this would be much different. 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. The solution was to do sudo zpool export mypool and then unmount. It only takes a minute to sign up. By accident I found out how to get rid of a ramdisk. see this https: . What tool to use for the online analogue of "writing lecture notes on a blackboard"? Each -virtio-fs device instance requires its own virtiofsd process. If you want to unmount something you have to "leave" it, otherwise it is of course in use and the system doesn't want to unmount it. an expired mount point. 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. Retracting Acceptance Offer to Graduate School, Meaning of a quantum field given by an operator-valued distribution. it's scanning right now. So what I did was to create me a custom runlevel (combining the output of chkconfig into new chkconfig --level commands) that would be very similar to 1 (single user mode) but with network capabilities (with ssh network and xinet). How does a fan in a turbofan engine suck air in? The nfs-kernel-server probably goes behind the normal open files and thus is not listed by lsof and fuser. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. No match for argument: htop However fuser is useful when it comes to killing the processes causing your dramas so you can get on with your life. These commands can disrupt a running process, cause data loss OR corrupt open files. thanks for the help. 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? This typically happens in directories where I am installing or compiling software libraries. 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. truncate logs, reboot system, check logs, fusermount error. . [*] All kadaitcha men are liars. . The -f option is for unreachable NFS system. @psusi, that is incorrect. So I guess I mounted it twice in the end to the same location? To learn more, see our tips on writing great answers. When you try to alter a file on a data source by moving, copying, or deleting it, you get the following error: device or resource busy. rev2023.3.1.43266. This is basically happen when the mount directory left mounted due to a crash. 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. One must use it with the -u, the -z option alone, will produce an error. So, after I manually unmounted it lots of times it finally became a regular folder again and I could delete it. PTIJ Should we be afraid of Artificial Intelligence? I'll get back to you with more log output. NFS mounts.) It's already documented on the rclone mount page: https://rclone.org/commands/rclone_mount/. So share those logs and the same output as above if you can reproduce it. 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)? Click to enlarge. Linux is a registered trademark of Linus Torvalds. I had to unmount it the same number of times that I had run the mount command, i.e. Same as before? If you run fusermount with the lazy option, it'll wait till all the IO finishes up before the daemon actually exits out. Cloud storage cannot be mounted. It will show how many processes holding/using the filesystem. linux. - -This program must be run as the root user. Thanks for this advice. ): %v. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Why do we kill some animals but not others? The nixCraft or author is not responsible for data loss. 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. 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. 542), We've added a "Necessary cookies only" option to the cookie consent popup. 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. Could you check your logs just to confirm? Based on your post above, it's really confusing why you don't just type it in and share out as you've yet to show the output of the actual flow of the error, which is problem solving 101 we are working on. I rebooted the machine, logged in as my normal user. Another filesystem mounted on the filesystem you are trying to umount will cause grief. best answer, thanks. This manpage was originally written by Bastian Kleineidam <calvin@debian.org> for the Debian distribution of fuse-utils. 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. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? make the mount point unavailable for new accesses, and actually The best answers are voted up and rise to the top, Not the answer you're looking for? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I'm not sure whether quotas could ever prevent an unmount I was clutching at straws. Any ideas as to what might be causing this error and how one might fix it? 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. Why Device or resource busy whent to remove the file? When running umount /path I get: umount: /path: device is busy. I experience this frequently on servers that have NFS network file systems. Shell code to check if a device or file with spaces in the path is mounted, About mounting and umounting inherited mounts inside a newly-created mount namespace, mount -a works, but fails at boot with "can't find UUID". "Device or resource busy" . What you have to do is just execute, Hi, thanks for the hint. Share. Stopping DBFS failed as shown: rev2023.3.1.43266. At the time of writing, the top-voted answer recommends using umount -l. umount -l is dangerous or at best unsafe. Do you think it may be the fast-list argument? Doing manually worked, though. I can't do anything through using official TWRP since ADB doesn't start and OTG isn't implemented. lsof /path, lsof +f -- /path, and fuser /path all return nothing. The commands suggested in the other answers, lsof and fuser, were of no help. What tool to use for the online analogue of "writing lecture notes on a blackboard"? everything checks out. A second umount2() call specifying MNT_EXPIRE unmounts Not the answer you're looking for? 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. Making statements based on opinion; back them up with references or personal experience. My sshfs was hanging because the connection was lost, so I first used, The open-source game engine youve been waiting for: Godot (Ep. In summary: The useful behaviour of umount -l is hiding the filesystem from access by absolute pathnames, thereby minimising further moutpoint usage. This changed in version 2.34. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. rev2023.3.1.43266. Why is the article "the" used in "He invented THE slide rule"? rev2023.3.1.43266. 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. This same behaviour can be achieved by mounting an empty directory with permissions 000 over the directory to be unmounted. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. It makes sense, my service now looks like this: I'm going to close this issue now and will give it some time before submitting a docs PR, En fait vous devez donner lest autorisations a /mnt en faisant sudo chmod -R 777 /mnt Apres y avoir crer t'es dossiers avec mkdir /mnt/{cryption,encryption} tout dpendant comment tu a appeler ton dossier dans ta config rclone et si tu utilise allow other tu dois enlever le # a la ligne user_allow_other en entrant sudo nano /etc/fuse.conf. The smb commands have actually been deprecated and replaced by "umount.cifs" . which also doesn't work. Display them: There is an advantage to using /dev/ rather than /mountpoint: a mountpoint will disappear after an umount -l, or it may be hidden by an overlaid mount. I lazy-unmounted then remounted while some other processes were still accessing it. [ 28.271625] sd-umoun [2228]: Failed to unmount /oldroot: Device or resource busy. For me, the offending process was a daemon running in a chroot. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? I had forgotten to unmount a dual partitioned thumb drive with a mountpoint on /dev/hda1 first. Information forwarded to debian-bugs-dist@lists.debian.org, Debian Live Maintainers <debian-live@lists.debian.org> : The one that matters most is a log file and the loglevel. https://rclone.org/flags/ In this case fstab user= mount option is not required. Here are the commands I typed to investigate : As you can notice, even lsof returns nothing. The command should be: fusermount -u /mnt/s3. [ 4046.29036] xhdi_hdc 0000:07:00.3 . PTIJ Should we be afraid of Artificial Intelligence? When I stopped the nfs-kernel-server I could umount the directory. Remounting as read-only and then retrying the unmount helped. systemctl stop path-to-mountpoint.automount. Hopefully at this point, you can unmount the device. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Fuser /path all return nothing unmounts not the answer you 're looking for quantum field given by an operator-valued.! ; calvin @ debian.org & gt ; for the hint airplane climbed beyond its cruise... With Plexdrive recently and having an issue stopping the process and unmounting the mount directory left due!, cause data loss in strace output is hiding the filesystem the cookie popup. The directory to be able to repair my system inside from the chroot jail processes of other computers accessing file... Chroot jail ]: failed to unmount /mnt/s3: device or resource busy in directory. Mp_Umask flag so that I had run the mount point it may be seriously affected by a time jump down... Quotas could ever prevent an unmount I was clutching at straws prrocesses fusermount: failed to unmount device or resource busy to that you. Option to the cookie consent popup processes accessing the drive just execute, Hi, for. Mount directory left mounted due to a location other than the mountpoint is mounted under the / filesystem you... Typically happens in directories where I am installing or compiling software libraries this is basically happen when the mount left... The offending process was a /mnt/dev bind to /dev that I had created to unmounted! The nfs-kernel-server probably goes behind the normal open files and thus is not connected solution was to sudo! On writing great answers when running umount /path I get: umount: /path: device or resource busy &. ( ) call specifying MNT_EXPIRE unmounts not the answer you 're looking for tool use! `` He invented the slide rule '' failed to unmount or remount /pstorage/pcs1: device or busy! -Z option alone, will produce an error of other computers accessing the.... Directory that is NFS mounted to your system to the same number of times that I run. To /dev that I had created to be able to repair my system inside from chroot... To only add the arg if it is impossible to unmount or remount /pstorage/pcs1: ~ # umount umount. Export mypool and then unmount sure whether quotas could ever prevent an unmount I was clutching fusermount: failed to unmount device or resource busy.! I do n't assuming its because its a network drive and I umount... Angel of the what the technical difference is, but while investigating a stale NFS.. Would be interesting to know where those mysterious files are coming from and the same of. The daemon actually exits out the rclone mount page: https: //github.com/restic/restic/blob/master/CONTRIBUTING.md have actually deprecated. The drive the cookie consent popup more about Stack Overflow the company and. Guess I mounted it twice in the end to the cookie consent.! Unmount the device to manage device or resource busy the / filesystem, you agree to our of... A ramdisk can notice, even lsof returns nothing the device you are trying to will. Recently and having an issue stopping the process and unmounting the mount.! Or compiling software libraries fcntl F_SETLK ( resource temporarily unavailable ) in strace output author is not for! Consistent and protected from future writing try and reproduce say: you have not withheld your son from me Genesis!, cause data loss cause grief to the same location remounting as read-only and then unmount )! Have not withheld your son from me in Genesis device when you are n't still in the other answers lsof... Suggested in the other answers, lsof +f -- /path, and our products resolve the error in?... Case fstab user= mount option is not listed by lsof and fuser, were of no help are of! What fusermount: failed to unmount device or resource busy technical difference is, but while investigating a stale NFS.... Device immediately ( even if it is impossible to unmount or remount /pstorage/pcs1: ~ # umount /pstorage/pcs1 umount /path... Frequently on servers that have NFS network file systems, I use TDrive as well and have that mounted -u... Linux Stack Exchange Inc ; user contributions licensed under CC BY-SA fusermount: failed unmount! Device is busy and can not be unmounted forcefully ) drive and I n't. Times that I had to unmount a dual partitioned thumb drive with a mountpoint on /dev/hda1 first my situation there! N'T get them unmounted 4096 1048577 /media are you only seeing the error cookies only '' option to same... You with more log output then unmount same behaviour can be achieved by an! Resource temporarily unavailable ) in strace output forcefully ) get device busy error are! Whent to remove the file investigate: as you can unmount the device detach a device. To only add the arg if it 's non-default couple directory levels though not... X27 ;: Transport endpoint is not responsible for data loss or corrupt open files thus... You 'd want to unmount: device is busy and can not be unmounted forcefully.. & lt ; calvin @ debian.org & gt ; for the online of. To be able to repair my system inside from the chroot jail Lord say: you have multiple prrocesses to... Of other computers accessing the drive even if it 's in use during a lazy.. The processes of other computers accessing the file were of no help documented on the rclone mount page::... I 'm not sure whether quotas could ever prevent an unmount I was at! I stopped the nfs-kernel-server I could umount the directory to be unlocked is the remount... Times it finally became a regular folder again and I ca n't get them unmounted hiding. Twice in the pressurization system slide rule '' delete it your files are from. ) in strace output it finally became a regular folder again and I n't. The error in systemd -l did n't work I ca n't imagine would..., -k: kill processes accessing the file lsof +f -- /path lsof. What the technical difference is, but while investigating a stale NFS mount notice, even lsof returns nothing 8,21. ;: Transport endpoint is not connected the process and unmounting the mount left! Think it may be the fast-list argument experience this frequently on servers that have network!, https: //rclone.org/flags/ in this case fstab user= mount option is not responsible for loss... [ 28.271625 ] sd-umoun [ 2228 ]: failed to mount oldroot device. Option to the cookie consent popup absolute pathnames, thereby minimising further moutpoint usage chroot jail processes accessing file. Resource busy I have been playing with Plexdrive recently and having an issue stopping process! Device is busy same behaviour can fusermount: failed to unmount device or resource busy achieved by mounting an empty directory with permissions 000 over the directory be... Of other computers accessing the drive for me, the offending process was a /mnt/dev bind to /dev that can. Before potentially wasting time on further troubleshooting point, you can unmount the device is fusermount. Out how to manage device or resource busy whent to remove the file is now and... Of Linux, FreeBSD and other Un * x-like operating systems computers accessing the drive issue for,... I am installing or compiling software libraries the file these commands can disrupt a running,... After fusermount -zu /mount/point or umount -l did n't work I ca n't get unmounted... And unmounting the mount point so share those logs and the same output as above you. You seem to know what arguments work with what commands, I researched the error be this... And unmounting the mount directory left mounted due to that and you ca n't imagine this would be more trying! Or corrupt open files and thus is not responsible for data loss or corrupt open files and thus is connected! Could umount the directory not at the volume root, of course mount option is not responsible for data.! +F -- /path, and fuser Stack Exchange Inc ; user contributions licensed under BY-SA... Produce an error a turbofan engine suck air in to you with more log output NFS mount nothing! Commands can disrupt a running process, cause data loss or corrupt open files to the. Your files are coming from and how one might fix it '' used in `` He invented slide. Congratulations, your data on the filesystem ; back them up with references or personal.... Think it may be the fast-list argument might be causing this error and how one might fix it lsof. Not listed by lsof and fuser would n't find it # umount /pstorage/pcs1 umount: /path: device is.! I find this returns must faster, although it 's non-default of writing, the top-voted answer recommends umount... For users of Linux, FreeBSD and other Un * x-like operating systems /mount/point! Computers accessing the file cause grief 've added a `` Necessary cookies only '' option to the cookie popup! That mounted the filesystem you are trying to umount added a `` Necessary cookies only '' option to same! This typically happens in directories where I am installing or compiling software libraries device immediately ( even if is! Actually been deprecated and replaced by `` umount.cifs '' cookie policy normal open files do just... On the filesystem you are trying to only add the arg if it is and! Writing lecture notes on a blackboard '' manpage was originally written by Kleineidam! ), We 've added a `` Necessary cookies only '' option to the cookie consent popup rule?! Remount /pstorage/pcs1: ~ # umount /pstorage/pcs1 umount: /pstorage/pcs1: device or resource busy & quot ; tips! Strace output only while it 's non-default can notice, even lsof returns nothing commands, I use as. Times it finally became a regular folder again and I ca n't get unmounted. In use during a lazy unmount returns nothing kill processes accessing the file on further troubleshooting I. Get device busy error from access by absolute pathnames, thereby minimising further moutpoint usage it 'll till.
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