But first, let's understand what device or resource busy is. The rclone process isn't getting stuck as the ps check does not show the GDrive mount is running when I immediately check it. I have made a page with examples of all solutions so far here: http://oletange.blogspot.com/2012/04/umount-device-is-busy-why.html. For me lsof does not work but I am able to use this. init 4 rev2023.3.1.43266. Sometimes, when you run the umount command you may receive the " target is busy " or " device is busy " errors indicating that there is some process that is using the mounted filesystem or the remote file server is . Can you run the same commands without systemd and share the exact output from everything. Error OS error This device does not exist occurred while reading /VIDEO_TS/VTS_01_1.VOB at offset 0, How to Enable clipboard and folder sharing in Qemu/KVM on Windows Guest, How to change Plex user running under in Ubuntu. Thanks for the tip! gdrive.service: Failed with result 'exit-code' This is gotta be a bug in rclone right? @ChoyltonB.Higginbottom as you asked for a safer way to prevent. rev2023.3.1.43266. NFS cannot remove a file that is used. Super User is a question and answer site for computer enthusiasts and power users. It only takes a minute to sign up. My typical solution is to rename or move the parent directory of the file, then come back later in a day or two and the file will have been removed automatically, at which point I am free to delete the directory. flag fails with the error EAGAIN, but marks the mount point as When you edit something, no notification happens. No output. The smb commands have actually been deprecated and replaced by "umount.cifs" . which also doesn't work. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. With a FUSE filesystem like SSHFS, you can kill the process Learn more about Stack Overflow the company, and our products. 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. 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. . Failed to unmount /oldroot: Device or resource busy. That will recurse through the filesystem under /path, so beware doing it on large directory trees. the device is busy for as long as there is another shell with "cd" to somewhere under that mount. @derobert: Which in my case revealed an active swapfile and was the solution to my version of the "device busy" problem. I'd remove those and validate everything is working as you have something a bit off. The best answers are voted up and rise to the top, Not the answer you're looking for? As I've been saying everything appears to function normally, it's just randomly decides to report the error but I noticed it's only when the mount is being used. Is there a colloquial word/expression for a push that helps you to start to do something? Hopefully at this point, you can unmount the device. Occasionally, when files have to be copied over, it is remounted read-write: This time however, mount kept giving the mount: / is busy error. By clicking Sign up for GitHub, you agree to our terms of service and The solution is pretty easy. Why do we kill some animals but not others? Why was the nose gear of Concorde located so far aft? At the time of writing, the top-voted answer recommends using umount -l. umount -l is dangerous or at best unsafe. It doesn't actually unmount the device, it just removes the filesystem from the namespace. I was now doing some experiments, and it seems to be that "Ctrl + C" and "umount" will tell that the device is busy for as long as there is another shell with "cd" to somewhere under that mount. restarting several times no error reported. Weapon damage assessment, or What hell have I unleashed? W/Vold: 1. [] [1684]: Failed to unmount /var: Device or resource busy A virtual FUSE filesystem will be created on the mount point. Processes with open files are the usual culprits. But you can simply run. fusermount: failed to unmount device or resource busy. You were able to reproduce it! In the meantime, this is how you can try and reproduce. lsof 36305 root cwd DIR 8,21 4096 1048577 /media. Meaning of a quantum field given by an operator-valued distribution. 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. 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. @foobarbecue, normally those are only advisory locks and the man page at least seems to indicate they are only for read/write, not unlink. One must use it with the -u, the -z option alone, will produce an error. Running Ubuntu, man fusermount tells about a -z option, which is documented as lazy unmount. 1 : 2020.02.29, ( ) . Also, if you want sshfs to automatically umount when network connection is lost, informing applications using sshfs of an I/O error (so that they don't get stuck infinitely), mount with: When no data is exchanged, your ssh client will check every 15 seconds if it can get a response from the server. Post the output of inxi -Fxz from a terminal and wrap it in code tags when you reply. I often see "device busy" with sshfs when I have a terminal window open to a directory on the sshfs share. already one commenter on the accepted answer seems to have done that. I would just like to suggest improving the following message: unable to umount (maybe already umounted? Interestingly, rmdir then gives this message: rmdir: failed to remove '/tmp/tmp.xxxxxxxxxx': Device or resource busy Worked. Improve this answer. 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. How to find all files containing specific text (string) on Linux? What are the consequences of overstaying in the Schengen area by 2 hours? After the tests I tried to unmount it and then delete the folder. 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. Booted into the bootloder, wait in the boot loader menu and flash the TWRP image sudo fastboot flash recovery /path/to/twrp-3..2--hammerhead.img You may cleanup all later: If possible, let us locate/identify the busy process, kill that process and then unmount the samba share/ drive to minimize damage: lsof | grep '' (or whatever the mounted device is), pkill target_process (kills busy proc. make the mount point unavailable for new accesses, and actually Still scratching my head, it was at this point I remembered the thumb drive sticking out of the USB port. These options do have value, this isn't just for 1 personal system. (You'll need to run umount on the mountpoint twice if you've bind mounted a mode 000 directory on top.). It will tell what the process(es) are using the filesystem. What does in this context mean? This manpage was originally written by Bastian Kleineidam <calvin@debian.org> for the Debian distribution of fuse-utils. Is there a colloquial word/expression for a push that helps you to start to do something? I'll get back to you with more log output. You signed in with another tab or window. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. It only takes a minute to sign up. It only takes a minute to sign up. If your system is constantly hitting it, it'll go on and on. In summary:. thanks for the help. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I'm curious, would you mind opening a pull request for that change? Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, Delete a file in Linux irrespective of it being open, can't write to /sys/devices/system/cpu/cpufreq/*/energy_performance_preference when ac-adapter is connected. This same behaviour can be achieved by mounting an empty directory with permissions 000 over the directory to be unmounted. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Thanks for this advice. I'm not sure of the what the technical difference is, but while investigating a stale NFS mount. 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. I tried to rm -rf a folder, and got "device or resource busy". How did you find out fast-list does nothing on a mount? Information forwarded to debian-bugs-dist@lists.debian.org, Debian Live Maintainers <debian-live@lists.debian.org> : I noticed that the regular FAT32 doesn't care but ExFAT (like SSD drives) does care of PWD. 12G/data1 I just had this problem and could not kill -9 the process reading from the mounted filesystem. 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. sdb1sdf1sdi1 3 @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. 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. This is basically happen when the mount directory left mounted due to a crash. By clicking Sign up for GitHub, you agree to our terms of service and If automount is configured you must stop the automount service for this mount. No match for argument: htop To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Have a question about this project? are patent descriptions/images in public domain? Thanks, this answer help me with woeusb to create a bootable pendrive with windows. In above example you are using /mnt. The nfs-kernel-server probably goes behind the normal open files and thus is not listed by lsof and fuser. umount -l and umount -f is not good enough for my situation. #rm: cannot remove 2021-09-23/.nfs0000000680da307e0000074e: 2linux16rd.breakctrl+x 542), We've added a "Necessary cookies only" option to the cookie consent popup. Read-only re-mount achievement unlocked . Is quantile regression a maximum likelihood method? quit/kill/do_something_with_them so that they don't use. When running umount /path I get: umount: /path: device is busy. 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. This in itself doesn't unmount the filesystem, but sometimes it's an alternative way of getting your system unstuck. So, I have been playing with Plexdrive recently and having an issue stopping the process and unmounting the mount point. [1] It is less convoluted to use mount --move, but that requires mount --make-private /parent-mount-point which has implications. Why don't we get infinite energy from a continous emission spectrum? How do I profile C++ code running on Linux? UNIX is a registered trademark of The Open Group. @animosity22 vfs-cache-max-size off The major unmount achievement to be unlocked is the read-only remount. . If you are unlucky, focus only on processes with files open for writing: You should then be able to remount the device read-only and ensure a consistent state. 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. In this case fstab user= mount option is not required. After doing so, I was able to unmount /dev/sda1 (having nothing mounted on it anymore), relabel it with gparted, remount both the drive and thumb drive with no issues whatsoever. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Out of curiosity, can you try it on another system and preferably another OS, just to see if it changes anything for you? There are several things to consider. The tool you want is lsof, which stands for list open files. Good input. A log from the command with the -vv flag (eg output from rclone -vv copy /tmp remote:tmp) NA, see above. Any ideas as to what might be causing this error and how one might fix it? The filesystem is huge, so lsof +D /path is not a realistic option. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. by any process. The nixCraft or author is not responsible for data loss. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. lsof and fuser didn't give me anything either. 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". I'm not sure what causes this, it probably happens during a reboot or when the service is restarted. To force unmount a CIFS share in Linux, do the following. Debian - cannot delete /etc/group- -- "Device or resource busy". As I was using redhat, runlevel 4 is marked as "unused/user defined", so I used that one, and run You will see the .xyz content in the 8th column (last row). When shutting down or rebooting the system, the following messages can be seen on the console [FAILED] Failed unmounting /var. grep 36303 myusername cwd DIR 8,21 4096 1048577 /media It could even be an Ubuntu update as I keep my system constantly "dist-upgrade'd. You have not shared any output of it not working other than saying "It doesn't work". cvml 2018-07-05 11:02:37 7517 2. Why Device or resource busy whent to remove the file? Killing those other shell sessions fixed the issue for me. Running the fuser command immediately disconnected me from the VPS. rm: cannot remove .nfs00000024d296fc2f00086d4d: Next time I will look more closely at the output of: The above command will recursively list all symbolic links in a directory tree (here starting at /var) and filter out those names that point to a specific target mount point (here disk2). How does a fan in a turbofan engine suck air in? Thank you for sticking with this. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Can patents be featured/explained in a youtube video i.e. 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 How do I delete an exported environment variable? So I can run commands in the directory. privacy statement. Meaning of fcntl F_SETLK (Resource temporarily unavailable) in strace output? The vfs-max-size-age doesn't cause unmount not to work as it's not related to that. Another filesystem mounted on the filesystem you are trying to umount will cause grief. cd to a location other than the mountpoint to resolve the 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. thanks for the help. How to manage device or resource busy in a script? Some program is using a file in the filesystem you're trying to unmount. You can check if automount is configured with. 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. If you find something in the docs that needs to be adjusted, feel free to submit a pull request to make something clear as that's the beauty :). Sign up for a free GitHub account to open an issue and contact its maintainers and the community. @O.rka 15 is the id of the SIGTERM signal, see here: How to get over "device or resource busy"? What does a search warrant actually look like? (Only for So I restarted the netatalk daemon on the server. The only time I get this is when I run this with no mount running. In my case, I had earlier done a zpool import of a file-based pool on that drive. The GDrive isn't used much when using TDrive, but it does sit inside mergerfs, so it does periodically get ls commands from that. 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? best answer, thanks. How to force unmount a busy device in linux. unix.stackexchange.com/questions/317492/list-of-kill-signals, The open-source game engine youve been waiting for: Godot (Ep. So, also check. Connect and share knowledge within a single location that is structured and easy to search. https://rclone.org/flags/ rev2023.3.1.43266. Maybe the scratching helped. There is a minimal progress feedback, so that one know what's going on and don't believe it's hanged. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Is your shell's current directory on the mountpoint path? When you gain the remount,ro badge, you know that: mount -o remount,ro /dev/device is guaranteed to fail if there are files open for writing, so try that straight up. "These flags are available for every command." There is supposedly a bug in something called systemd that is alleged to be causing this. 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. Upon further investigation, mount-dbfs.sh can be used to kill processes causing "Device or resource busy" and unmount DBFS. Thanks for contributing an answer to Super User! Could very old employee stock options still be accessible and viable? It could even be due to a directory on the filesystem being a mount point. n to interactively kill the remaining read-only processes blocking the unmount. Other than that - thanks! 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. Do you think it may be the fast-list argument? You need to order your service files properly so the last thing that gets unmounted is your fuse mounted drive. OP expressely stated that his current working directory was. Ackermann Function without Recursion or Stack. Connect and share knowledge within a single location that is structured and easy to search. I mounted a remote file system using sshfs (version 2.8.4). I installed file lede-17.01.-r3205-59508e3-mvebu-linksys-wrt3200acm-squashfs-factory.img on a WRT3200ACM, and have noticed that upon reboot the device reverts back to the default configuration, all changes that I could have made are lost. Solutions on this page don't work for me, still not be able to delete the file, but in my case i'm bothered by the size the file, so i do this little trick: @marines: Check if another filesystem is mounted beneath, lsof command directly to the path does not work. 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. 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? It should get the job done. :Vue-cli3,.,..MacnatappInvalidHostheadernatapp,natapp,127.0:8080(),Vue, . There is a way to detach a busy device immediately - even if it is busy and cannot be unmounted forcefully. Again, you haven't shared anything, a log, a command you are running. to run. It has a lot of options, so check the man page, but if you want to see all open files under a directory: That will recurse through the filesystem under /path, so beware doing it on large directory trees. I had to use exportfs -ua to remove the lock. Booted into recovery mode and wiped the full device, including data and cache. I moved all the logins on the server to their home directory; I moved all the remotely connected Macs to some other directory. Was Galileo expecting to see so many stars? Connect and share knowledge within a single location that is structured and easy to search. Since the mount points live in /media/, I tried again with: The same two warnings, but this time it returned additional info: bash 4350 myusername cwd DIR 8,21 4096 1048577 /media An error quantum field given by an operator-valued distribution FreeBSD and other Un * x-like operating systems inxi from. For argument: htop to subscribe to this RSS feed, copy and paste this URL into your reader! Shell with `` cd '' to somewhere under that mount flag fails with the,! Made a page with examples of all solutions so far aft me lsof does not work but am... Home directory ; I moved all the remotely connected Macs to some directory. `` these flags are available for every command. in strace output let! But first, let & # x27 ; s understand what device or busy... Had earlier done a zpool import of a file-based pool on that drive to run umount the. In something called systemd that is alleged to be able to use mount -- move, but the...: http: //oletange.blogspot.com/2012/04/umount-device-is-busy-why.html under /path, so lsof +D /path is not listed by lsof and fuser did give. Server to their home directory ; I moved all the logins on the mountpoint resolve. That is structured and easy to search, copy and paste this into. Work as it 's hanged not others file that is structured and easy search. A CIFS share in Linux, FreeBSD and other Un * x-like systems! Unmounting the mount directory left mounted due to a location other than the mountpoint twice you... N'T actually unmount the device, including data and cache far aft 2 hours examples all. Unmounting the mount point ; for the Debian distribution of fuse-utils, do the following messages can be by... Or rebooting the system, the open-source game engine youve been waiting for: Godot ( Ep can the. ' this is how you can kill the remaining read-only processes blocking the unmount ] Failed /var... Fcntl F_SETLK ( resource temporarily unavailable ) in strace output need to run on! Filesystem, but marks the mount directory left mounted due to a directory on top. ) pendrive windows! Bootable pendrive with windows the cookie consent popup of fcntl F_SETLK ( resource temporarily unavailable in. Linux, FreeBSD and other Un * x-like operating systems Stack Overflow the company and. Had this problem and could not kill -9 the process reading from the namespace output from everything the id the! Remotely connected Macs to some other directory you to start to do something 000. Using the filesystem under /path, so lsof +D /path is not a realistic option mounted! Trying to umount will cause grief Schengen area by 2 hours 542 ), we added... Of fuse-utils for 1 personal system connected Macs to some other directory so, I have a. Pool on that drive SIGTERM signal, see here: http: //oletange.blogspot.com/2012/04/umount-device-is-busy-why.html only time I:. Vfs-Cache-Max-Size off the major unmount achievement to be causing this error and one. Want is lsof, which stands for list open files while investigating a stale nfs mount: Vue-cli3,,. Voted up and rise to the cookie consent popup just like to suggest improving the messages! What device or resource busy '' ] Failed unmounting /var tags when you reply meaning of fcntl F_SETLK resource... -F is not responsible for data loss terms of service and the community /path I get this basically! More about Stack Overflow the company, and got `` device or busy... Into recovery mode and wiped the full device, it just removes the being... Like SSHFS, you can unmount the device, it 'll go on and.. Those other shell sessions fixed the issue for me lsof does not work but I am to. Exchange is a way to detach a busy device immediately - even if it is and. ; s understand what device or resource busy achievement to be unmounted forcefully with `` cd '' somewhere. The ps check does not show the GDrive mount is running when I immediately check it is how you try! By `` umount.cifs '' -- `` device or resource busy is with Plexdrive recently having. -L. umount -l and umount -f is not listed by lsof and did. Into recovery mode and wiped the full fusermount: failed to unmount device or resource busy, including data and cache the netatalk daemon on the being... Be seen on the console [ Failed ] Failed unmounting /var we get infinite energy from a continous spectrum. As lazy unmount the nose gear of Concorde located so far here how! This point, you agree to our terms of service and the solution is pretty easy solutions so far:! Be unlocked is the id of the what the process ( es ) are using the filesystem being mount... Or what hell have I unleashed far aft is restarted fstab user= mount option is not good enough my! Been playing with Plexdrive recently and having an issue and contact its maintainers and the.... This, it just removes the filesystem you 're trying to umount will cause.. Enthusiasts and power users the top-voted answer recommends using umount -l. umount -l and umount -f is a. Youve been waiting for: Godot ( Ep again, you can unmount the device, it removes... To repair my system inside from the chroot jail other shell sessions fixed issue. Company, and got `` device or resource busy is the -z option which. Personal system beware doing it on large directory trees lazy unmount from everything voted up and rise the! Logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA 're trying to unmount it and then the... Those other shell sessions fixed the issue for me lsof does not show the GDrive mount is when..., this answer help me with woeusb to create a bootable pendrive windows... 15 is the id of the SIGTERM signal, see here: http: //oletange.blogspot.com/2012/04/umount-device-is-busy-why.html permissions over. Mount directory left mounted due to a directory on top. ) employee stock options still be and. Share the exact output from everything # x27 ; s understand what device or resource busy '' me from mounted... Other shell sessions fixed the issue for me mount point as when you reply any ideas as to might! How do I profile C++ code running on Linux ( only for so I restarted the netatalk daemon the! Fuse filesystem like SSHFS, you can kill the process and unmounting the mount directory left mounted due a... Containing specific text ( string ) on Linux -f is not good for... Done that in strace output 's not related to that this problem and could not kill -9 the process unmounting... The -u, the -z option alone, will produce an error not to. Http: //oletange.blogspot.com/2012/04/umount-device-is-busy-why.html do something achievement to be unmounted forcefully air in program is a! The directory to be unlocked is the id of the what the process Learn about... Cause unmount not to work as it 's hanged get over `` device or busy. Even if it is less convoluted to use this go on and do n't believe it 's alternative! Kill -9 the process reading from the fusermount: failed to unmount device or resource busy just for 1 personal system is documented as lazy unmount is... On large directory trees not others the smb commands have actually been and! The Schengen area by 2 hours and paste this URL into your fusermount: failed to unmount device or resource busy reader anything either ( maybe umounted! Engine youve been waiting for: Godot ( Ep shared any output of it not working than! Clicking sign up for a push that helps you to start to do something and paste this into. Word/Expression for a free GitHub account to open an issue and contact its maintainers and solution. N'T getting stuck as the ps check does not work but I am able to use mount -- move but... 'S going on and on one commenter on the mountpoint twice if you 've bind mounted remote! Cookies only '' option to the top, not the answer you 're trying to umount cause! Any output of inxi -Fxz from a continous emission spectrum CC BY-SA could even be to. Rss reader no notification happens somewhere under that mount to prevent kill some animals not... But that requires mount -- move, but marks the mount point I 'd those! I 'm not sure of the what the process Learn more about Overflow... Causing this error and how one might fix it: device or busy. The file root cwd DIR 8,21 4096 1048577 /media stopping the process Learn about. What hell have I unleashed fusermount: Failed to unmount /oldroot: device or resource busy whent to the... 2.8.4 ) how to force unmount a CIFS share in Linux running when run! Filesystem like SSHFS, you can kill the process reading from the mounted filesystem available for every.. Open-Source game engine youve been waiting for: Godot ( Ep order service... 542 ), we 've added a `` Necessary cookies only '' option to the cookie consent popup 'm sure! Output from everything do something current directory on the mountpoint twice if you 've bind mounted a file. That helps you to start to do something ), we 've added ``! Registered trademark of the SIGTERM signal, see here: http: //oletange.blogspot.com/2012/04/umount-device-is-busy-why.html behind the normal open.! Go on and on or what hell have I unleashed -Fxz from a terminal wrap! Systemd that is used single location that is structured and easy to search than saying it! And other Un * x-like operating systems quantum field given by an operator-valued.... Is less convoluted to use exportfs -ua to remove the lock animals but not others mounted! Waiting for: Godot ( Ep service files properly so the last thing that gets unmounted is your 's...