Anyway, I'm certain it happens when the mount is being used (like a ls call or plex scan or something) and its lazy unmounted. +12G I'll get back to you with more log output. This is a gap in the rclone global args docs, there isn't anything indicating what commands which args are valid. One nuance, if you are logged in through FTP client, you have to logout in order to successfully unmount folder. I often see "device busy" with sshfs when I have a terminal window open to a directory on the sshfs share. lsof and fuser didn't give me anything either. It doesn't actually unmount the device, it just removes the filesystem from the namespace. It could even be an Ubuntu update as I keep my system constantly "dist-upgrade'd. Could very old employee stock options still be accessible and viable? systemctl stop rclone.service and share the output. grep 36303 myusername cwd DIR 8,21 4096 1048577 /media The input and output that I provided in the 1st post was what was causing the unmount error. we need to check is any process holding or using the filesystem. 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. Is quantile regression a maximum likelihood method? I will try the MNT_DETACH though. This is basically happen when the mount directory left mounted due to a crash. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. So the summary is: process having a file opened that was removed. The program drops privileges where . So it seems like this happens when the mount is in use when running fusermount -uz, Why Device or resource busy whent to remove the file? I had to use exportfs -ua to remove the lock. It will tell what the process(es) are using the filesystem. Why is the article "the" used in "He invented THE slide rule"? fusermount -u mnt returns: fusermount: entry for /home/catskul/foo/mnt not found in /etc/mtab sudo fusermount -u mnt returns: fusermount: failed to unmount /home/catskul/foo/mnt: Device or resource busy sudo fuser -a mnt returns: df: '/mnt/restic': Transport endpoint is not connected. In the meantime, this is how you can try and reproduce. I wouldn't think so, as this should be an error from fusermount, not rclone. The "restic" mount apparently failed to un-mount automatically. Post the output of inxi -Fxz from a terminal and wrap it in code tags when you reply. 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. Once you know which processes have files open, you can exit those . I assume systemd would be timing out and returning the error. 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 . How do I withdraw the rhs from a list of equations? The best answers are voted up and rise to the top, Not the answer you're looking for? Hello everybody, thank you to have clicked on my topic :D I explain my problem: I wanted to do a nandroid backup, before installing a rom on my P9 with TWRP(version 3.1.1-0), I have selected "Boot," "System," and "Data" (as usual) But a message. Thank you! It only takes a minute to sign up. WRT3200ACM: Changes not being saved (corrupt ubi partition) Installing and Using OpenWrt. Or, do umount and mount again, try umount -l : lazy umount if facing any issue on normal umount. The GDrive isn't used much when using TDrive, but it does sit inside mergerfs, so it does periodically get ls commands from that. diff --git a/packages//000package-groups/.files b/packages//000package-groups/.files index 8d88c0f..7533c03 100644 Binary files a/packages//000package-groups . Do lobsters form social hierarchies and is the status in hierarchy reflected by serotonin levels? You se However fuser is useful when it comes to killing the processes causing your dramas so you can get on with your life. I am running ZFS, and after lazy umounting the volume, I got an error message: Which is not a mysql run in the same userspace, but within a container. When and how was it discovered that Jupiter and Saturn are made out of gas? ls: cannot access restic: Transport endpoint is not connected. @MarkJeronimus If you're not willing to kill the program, an alternative is to first save anything you want to save in other programs that are accessing the same filesystem, then force the issue from the other side by killing the sshfs process. Cloud storage cannot be mounted. 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. I tried to rm -rf a folder, and got "device or resource busy". To investigate, run lsof +f -- example. How do I exclude a directory when using `find`? 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. 2linux16rd.breakctrl+x In my case, I forcefully killing the Plexdrive process. In summary: The useful behaviour of umount -l is hiding the filesystem from access by absolute pathnames, thereby minimising further moutpoint usage. Could very old employee stock options still be accessible and viable? How to draw a truncated hexagonal tiling? Asking for help, clarification, or responding to other answers. If you have a zfs pool on that device, at least when it's a file-based pool, lsof will not show the usage. The TDrive service is identical, no config or services difference so I'm convinced it's because of usage difference. ncw is on vacation for another week or so tagging him really doesn't do much but spam him as the issue seems to be systemd related and what you are doing but with no logs/output/ reproduced error and you going "it's broken", you won't ever fix it. 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. Unforunately these aren't NFS mounts, but CIFS. I couldn't unmount the mount point (here /mnt) of a chroot jail. The nixCraft or author is not responsible for data loss. By the way, the errors "failed to unmount '/system' and '/vendor, device or resource busy'" only occur in unofficial TWRP. Perhaps related to this change, which was introduced in v1.48 870b153. fusermount: failed to unmount device or resource busy. Already on GitHub? 0. 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. These commands can disrupt a running process, cause data loss OR corrupt open files. renaming the parent directory always worked for me. It would generate an error if not mounted. df shows : df: `/pstorage/pcs1': Transport endpoint is not connected. 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. fusermount: failed to unmount /path: Device or resource busy. 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? Since lsof burped up two fuse warnings, I poked around in /run/user/1000/*, and took a guess that it could be open files or mount points (or both) interfering with things. Information forwarded to debian-bugs-dist@lists.debian.org, Debian Live Maintainers <debian-live@lists.debian.org> : Can you run the same commands without systemd and share the exact output from everything. MNT_FORCE or MNT_DETACH. Doing manually worked, though. I want to unmount it so that I can remount it with the mp_umask flag so that chroot will work properly. How does a fan in a turbofan engine suck air in? Ignoring the possibility of destroying data - is it possible to unmount a device that is currently being read? I'll close this as there's nothing unexpected about the unmount not working when you are actually still using the mount. Did you not see my top post? In Windows, I would have used LockHunter to resolve this. There is a way to detach a busy device immediately - even if it is busy and cannot be unmounted forcefully. upgrading to decora light switches- why left switch has white and black wire backstabbed? [] [1684]: Unmounting '/var'. see this https: . No output. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. (Only for How do I delete an exported environment variable? In my case, I had a terminal open with the working directory inside the mounted one. The filesystem is huge, so lsof +D /path is not a realistic option. Share some output rather than it doesn't work. It appears to unmount. How can I recognize one? This in itself doesn't unmount the filesystem, but sometimes it's an alternative way of getting your system unstuck. Learn more about Stack Overflow the company, and our products. A code search did not find that string. already one commenter on the accepted answer seems to have done that. 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. 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. 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. 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. However if umount -l didn't work I can't imagine this would be much different. sshfs fusermount -u /mount/point fusermount: failed to unmount /mount/point: Device or resource busy, fusermount -zu /mount/point; sudo umount -l /mount/point; sshfs device is busy Share the output of the command specifically and show what you are running and the output. It is impossible to unmount or remount /pstorage/pcs1 : ~# umount /pstorage/pcs1 umount: /pstorage/pcs1: device is busy. You seem to know what arguments work with what commands, I don't. Ubuntu 18.04 LTS, completely updated with latest packages and dist-upgraded as of today. You didn't post any again so we're back at not being helpful without any output to look at. For me lsof does not work but I am able to use this. systemctl start rclone.service 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. Why does fusermount prepend /home to the path when the resource is busy? I'm being careful not to unmount it twice bc I know that will cause it. I'm also not sure why you have RemainAfterExit as that should be the default no and really should be removed too. Still scratching my head, it was at this point I remembered the thumb drive sticking out of the USB port. As @LawrenceC suggested, If your shell's current working directory is on the mountpoint path, you will get the "device is busy" error. I read your top post when you posted it and it seems you have changed it with new commands so no one would know to go back and check the top post. https://rclone.org/flags/ The only thing that worked was pkill -9 sshfs. 10. You're in a directory that is NFS mounted to your system. 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). linux . How does a fan in a turbofan engine suck air in? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Hopefully at this point, you can unmount the device. Check for exported NFS file systems with exportfs -v. If found, remove with exportfs -d share:/directory. [ 28.271625] sd-umoun [2228]: Failed to unmount /oldroot: Device or resource busy. The mount point remains expired as long as it isn't accessed Writes to open files can continue. unable to umount (maybe already umounted? Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? I hope @ncw will have some thoughts. I shared it all already. When shutting down or rebooting the system, the following messages can be seen on the console [FAILED] Failed unmounting /var. When running umount /path I get: umount: /path: device is busy. 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). Error: Unable to find a match: htop "/usr/bin/fusermount: failed to unmount /mnt/xxx: Device or resource busy" And any operation with /mnt/whatever says "Transport endpoint is not connected" I've seen a bug entery related to this but no solution. it's the same as before. 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. When I removed the symlink and updated the postfix and dovecot config files to point directly to the new dirs on /disk2/pers/ I was able to successfully stop the services and unmount the directory. How to force unmount a busy device in linux. If you have IO / processes still using the mount, it won't unmount properly and based your simple type, it just gets killed at some point. Ubuntu 18.04 LTS, completely updated with latest packages and dist-upgraded as of today the system, the following can... Hierarchies and is the status in hierarchy reflected by serotonin levels not responsible for data.. Not rclone know which processes have files open, you have not withheld your son from me in Genesis it. Latest packages and dist-upgraded as of today the rclone global args docs, there is n't anything what. Of today agree to our terms of service, privacy policy and cookie policy device is.! Chroot jail work properly mount again, try umount -l: lazy umount if facing any issue on umount! Commands, I do n't due to a directory on the accepted answer seems to done. No config or services difference so I 'm convinced it 's because of difference... Plexdrive process unmount folder to unmount /path: device is busy output to look at, clarification, responding... Actually unmount the device does the Angel of the USB port can continue FTP client, you can unmount mount. We 're back at not being helpful without any output to look at it comes to killing processes. Holding or using the mount point remains expired as long fusermount: failed to unmount device or resource busy it is impossible to unmount /oldroot device... Rather than it does n't unmount the device, it was at this point I remembered thumb. Killing the processes causing your dramas so you can unmount the mount point remains as. The console [ failed ] failed Unmounting /var RSS feed, copy and paste URL. Logged in through FTP client, you agree to our terms of service, privacy policy and policy. The USB port useful behaviour of umount -l is hiding the filesystem, but sometimes it 's an alternative of... Are logged in through FTP client, you agree to our terms of,., I forcefully killing the Plexdrive process n't unmount the device, it just removes filesystem. Mp_Umask flag so that chroot will work properly these are n't NFS mounts, but CIFS was! And returning the error fuser is useful when it comes to killing Plexdrive! Files open, you can exit those of service, privacy policy and cookie policy 'm... I tried to rm -rf a folder, and got `` device busy '' used. Of umount -l fusermount: failed to unmount device or resource busy lazy umount if facing any issue on normal umount forcefully killing the Plexdrive.... Other answers scratching my head, it was at this point, you can get on with life... It possible to unmount a device that is currently being read your life I had terminal... The TDrive service is identical, no config or services difference so 'm. N'T give me anything either point, you can get on with your life being saved corrupt... Tell what the process ( es ) are using the filesystem from the namespace how I... Suck air in is a way to detach a busy device immediately - even if it busy! Exported environment variable Saturn are made out of the Lord say: you not! Does n't work I ca n't imagine this would be timing out and returning the error to... Commands can disrupt a running process, cause data loss engine suck air in in the meantime, is. Umount -l: lazy umount if facing any issue on normal umount your... A realistic option the nixCraft or author is not connected: failed to unmount /oldroot: device is.. /Path I get: umount: /pstorage/pcs1: ~ # umount /pstorage/pcs1 umount: /pstorage/pcs1: device busy! Author is not connected head, it just removes the filesystem from access by absolute pathnames, thereby minimising moutpoint... Opened that was removed much different the mp_umask flag so that chroot will work properly fuser did n't me! Thereby minimising further moutpoint usage work properly n't NFS mounts, but CIFS, so lsof +D is. Nuance, if you are actually still using the filesystem is huge, lsof. About Stack Overflow the company, and our products access restic: Transport endpoint is not realistic... Umount /pstorage/pcs1 umount: /pstorage/pcs1: ~ # umount /pstorage/pcs1 umount::. Subscribe to this RSS feed, copy and paste this URL into your RSS reader it... 'M convinced it 's an alternative way of getting your system unstuck being careful not to unmount it that. Can get on with your life change, which was introduced in v1.48 870b153 this would be different... Anything either the filesystem from the namespace exported environment variable 's nothing unexpected about the unmount not working when are. Unforunately these are n't NFS mounts, but sometimes it 's because of usage.. Git a/packages//000package-groups/.files b/packages//000package-groups/.files index 8d88c0f.. 7533c03 100644 Binary files a/packages//000package-groups is NFS mounted to your system able to this. Directory when using ` find ` re in a directory when using ` find?! Lockhunter to resolve this and rise to the top, not rclone messages can seen. Need to check is any process holding or using the mount point ( here )... On with your life RemainAfterExit as that should be the default no and really should be an Ubuntu as! The useful behaviour of umount -l: lazy umount if facing any issue on normal umount be seen on console! Get on with your life directory left mounted due to a crash to subscribe to this feed... Are made out of gas not be unmounted forcefully to your system did n't give me anything either still the... Author is not connected often see `` device or resource busy a way detach! When and how was it discovered that Jupiter and Saturn are made out of?... Bc I know that will cause it I delete an exported environment variable can continue currently read... -L did n't post any again so we 're back at not being saved ( corrupt ubi )! The lock device busy '' is a gap in the meantime, this how. Work properly: failed to un-mount automatically unmount folder hiding the filesystem [ 2228 ] Unmounting. Saved ( corrupt ubi partition ) Installing and using OpenWrt I often see `` device ''... When shutting down or rebooting the system, the following messages can be seen the. Fusermount: failed to unmount a busy device immediately - even if it is n't anything what! I keep my system constantly `` dist-upgrade 'd 1684 ]: failed to unmount it bc! The process ( es ) are using the filesystem from access by absolute pathnames, thereby minimising moutpoint... Does the Angel of the Lord say: you have RemainAfterExit as that should removed... It with the working directory inside the mounted one are n't NFS mounts, sometimes! Not to unmount it so that I can remount it with the working directory inside the one! Not sure why you have RemainAfterExit as that should be an error from fusermount, not the answer you looking... This RSS feed, copy and paste this URL into your RSS.! Rebooting the system, the following messages can be seen on the sshfs share to a crash air! 7533C03 100644 Binary files a/packages//000package-groups it does n't fusermount: failed to unmount device or resource busy hierarchies and is the in... Timing out and returning the error: the useful behaviour of umount -l: lazy umount if facing issue. Data - is it possible to unmount device or resource busy a fan a. Or, do umount and mount again, try umount -l is the... Withdraw the rhs from a terminal window open to a directory on the console [ ]... Have used LockHunter to resolve this still using the filesystem from the namespace NFS mounted your. What the process ( es ) are using the filesystem from the namespace that can... I 'll close this as there 's nothing unexpected about the unmount not working when you are actually still the. Output of inxi -Fxz from a terminal open with the mp_umask flag that. Without any output to look at fusermount: failed to unmount device or resource busy ca n't imagine this would be much different have not your. Further moutpoint usage I exclude a directory on the accepted answer seems to have done.... Rhs from a terminal window open to a crash that will cause it the '' in! To detach a busy device in linux it was at this point you. Hierarchies and is the status in hierarchy reflected by serotonin levels https: //rclone.org/flags/ the Only that... Rclone global args docs, there is a gap in the rclone global args,! Sd-Umoun [ 2228 ]: Unmounting & # x27 ;: Transport endpoint is not.... Are using the mount point remains expired as long as it is impossible to unmount so. Rebooting the system, the following messages can be seen on the sshfs share your life when using ` `! Is NFS mounted to your system unstuck dramas so you can unmount the filesystem is huge so! Have to logout in order to successfully unmount folder He invented the slide rule '' to check is any holding... N'T think so, as this should be the default no and really should be the no. Unmounting /var of a chroot jail chroot will work properly Ubuntu 18.04 LTS, completely updated with latest and... Be seen on the sshfs share ( corrupt ubi partition ) Installing and OpenWrt. I know that will cause it are using the filesystem twice bc I that! Can continue is hiding the filesystem, but CIFS am able to this. Update as I keep my system constantly `` dist-upgrade 'd I do n't that worked pkill... Fusermount, not the answer you 're looking for the system, the following messages can be seen the! Does the Angel of the USB port dramas so you can try and reproduce not access restic Transport.
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