Is lock-free synchronization always superior to synchronization using locks? Perhaps related to this change, which was introduced in v1.48 870b153. These don't show up in the fuser/lsof listing, and can prevent umount from succeeding. Let me know if you need help. /dev/sda1 was being mounted via /etc/fstab as /media/myusername. [ 4046.29036] xhdi_hdc 0000:07:00.3 . sudo 36302 root cwd DIR 8,21 4096 1048577 /media 0. 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. It would be more complex trying to only add the arg if it's non-default. I assume systemd would be timing out and returning the error. In my case it was docker that was holding the file. I had this problem when an automated test created a ramdisk. 10. I'm also not sure why you have RemainAfterExit as that should be the default no and really should be removed too. It appears to unmount. ): exit status 1: fusermount: failed to unmount /mnt/restic: Device or resource busy, ls: cannot access restic: Transport endpoint is not connected, df: /mnt/restic: Transport endpoint is not connected. 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. Writes to open files can continue. How do I recursively grep all directories and subdirectories? Strangely lsof didn't show a gvfsd-archive process, which was left over from having opened (and closed?) to your account, restic 0.9.6 compiled with go1.13.4 on linux/amd64. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? The before you shared worked. It will tell what the process(es) are using the filesystem. rm -rf dirctrl+Crm -rf Make your own judgement as to whether to make them close files, kill them, or defer the unmount operation. I only have access to CentOS servers at the moment. Learn more about Stack Overflow the company, and our products. Thank you for your reply. Some directories cannot be deleted if the device or resource is busy. @ChoyltonB.Higginbottom as you asked for a safer way to prevent. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What does in this context mean? 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. By accident I found out how to get rid of a ramdisk. Do you only ever get the fusermount error in systemd though? lsof 36305 root cwd DIR 8,21 4096 1048577 /media. Jordan's line about intimate parties in The Great Gatsby? When attempts to unmount failed, I researched the error. But you can simply run. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? 12G/data1 Fatal error: failed to umount FUSE fs: exit status 1: fusermount: failed to unmount /mnt/gdrive: Invalid argument, same output before. So here is another option, more verbose, but safer: tries to unmount until it successes, as many time as needed, in a loop. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Where, -k : Kill processes accessing the file. 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. renaming the parent directory always worked for me. @bitinerant the dangerous part is "as soon as it is not busy anymore" (which is an indefinite time frame) if you try and mount that thing again in that time. How to manage device or resource busy in a script? 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. ): exit status 1: fusermount: failed to unmount /mnt/restic: Device or resource busy. Connect and share knowledge within a single location that is structured and easy to search. Share. You'll see the code tags icon </> when you reply. That isn't right since fast-list is listed under that. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 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). This is basically happen when the mount directory left mounted due to a crash. 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. I shared it all already. Can't overwrite a file by moving another over it, Gedit won't save a file on a VirtualBox share: Text file busy. Is quantile regression a maximum likelihood method? That's why it show device is busy or filesystem is in use. 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. In Windows, I would have used LockHunter to resolve this. I've got some samba drives that are being accessed by multiple users daily. How is "He who Remains" different from "Kang the Conqueror"? Browse other questions tagged. In my case, I had earlier done a zpool import of a file-based pool on that drive. 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. "/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. When and how was it discovered that Jupiter and Saturn are made out of gas? sudo umount path. The one that matters most is a log file and the loglevel. Stopping DBFS failed as shown: Killing those other shell sessions fixed the issue for me. How to draw a truncated hexagonal tiling? This is more a workaround than an answer, but I'm posting it in case it might help someone. It's kind of broken, though. If you run fusermount with the lazy option, it'll wait till all the IO finishes up before the daemon actually exits out. yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm, dockersh start.sh docker-compose up -d, 20G12G7G Why does pressing enter increase the file size by 2 bytes in windows. You signed in with another tab or window. It could have something to do with the fact I have both a GDrive mount and a TDrive mount. as in example? What are the consequences of overstaying in the Schengen area by 2 hours? It's gotta be because the drive is randomly in use. I'd remove those and validate everything is working as you have something a bit off. Once you know which processes have files open, you can exit those apps, or kill them with the kill(1) command. unable to umount (maybe already umounted? unmounts a target, but allows additional flags controlling the 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. 'If you use -uz, it'll unmount and kill the process once the filesystem is not in use: A log from the command with the -vv flag (eg output from rclone -vv copy /tmp remote:tmp) NA, see above. Same deal with the "fuser" commands. I'm not sure what causes this, it probably happens during a reboot or when the service is restarted. Contents hide. Click to enlarge. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? 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. [*] All kadaitcha men are liars. @animosity22 vfs-cache-max-size off 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 I deal with a bunch of users who report "errors" and "bugs" and it ends up being them and they don't provide anything to help and it's really frustrating. @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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. --fast-list does nothing on a mount can can be removed.'. Hi, when i shut down system, my motherboard logo shows up for about 2 mins. I'm assuming its because its a network drive and I can't see the processes of other computers accessing the drive. https://rclone.org/flags/ The best answers are voted up and rise to the top, Not the answer you're looking for? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. If the log or output was different, I would have shared it, but it was the same results with different timestamps so no point in wasting your time on that. There are several things to consider. Interestingly, rmdir then gives this message: showing that $dir still has the value of /tmp/tmp.xxxxxxxxxx. At the time of writing, the top-voted answer recommends using umount -l. umount -l is dangerous or at best unsafe. privacy statement. The command should be: fusermount -u /mnt/s3. 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. are patent descriptions/images in public domain? Another alternative when anything works is editing /etc/fstab, adding noauto flag and rebooting the machine. [1] It is less convoluted to use mount --move, but that requires mount --make-private /parent-mount-point which has implications. "These flags are available for every command." 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). Why Device or resource busy whent to remove the file? WRT3200ACM: Changes not being saved (corrupt ubi partition) Installing and Using OpenWrt. So basically need to go in the path location and then run lsof busy_file then kill all the process, in my case, Jenkins didn't unmount chroot dir after task abort. It's already documented on the rclone mount page: https://rclone.org/commands/rclone_mount/. already one commenter on the accepted answer seems to have done that. I also had a mount in the mount. I only really use TDrive. 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. Answer. For fuser to report on the PIDs holding a mount open you have to use -m. We have a proprietary system where the root filesystem is normally read-only. It was when I started looking at why 1 ummounts without error and the other doesn't. 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: I connected to the other active screen session and its shell wasn't even currently sitting in the mounted directory. My goal is 100% to not be abrasive nor an asshole so I'm sorry if you feel that way as I sincerely apologize. n You either have a bad source of information or are just making stuff up. It would generate an error if not mounted. 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. Making statements based on opinion; back them up with references or personal experience. I rebooted the machine, logged in as my normal user. Output information may be incomplete. Why does RSASSA-PSS rely on full collision resistance whereas RSA-PSS only relies on target collision resistance? 1 Cause. truncate logs, reboot system, check logs, fusermount error. 542), We've added a "Necessary cookies only" option to the cookie consent popup. 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). I would just like to suggest improving the following message: unable to umount (maybe already umounted? Why is the article "the" used in "He invented THE slide rule"? 542), We've added a "Necessary cookies only" option to the cookie consent popup. Seems to be working fine in the output you shared. I often see "device busy" with sshfs when I have a terminal window open to a directory on the sshfs share. 7. Kill all the processes and then you will able to unmount the partition/busy device. It will list which process is using a file or files within a mount. 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". Sign in So, also check. It's been working just an odd error randomly when unmounting. fuser can also be used, but to my mind lsof has a more useful output. No match for argument: htop One interesting and important item I have discovered: the process killed from using mount-dbfs.sh is ***not**** the same as shown from fuser. So I unmounted the thumb drive partitions (unmounting one automatically unmounted the other) and safefly unplugged the thumb drive. I had this issue, and it turned out that there were active screen sessions in the background I didn't know about. In above command outputs, please notice the following: unable to umount (maybe already umounted? Find centralized, trusted content and collaborate around the technologies you use most. Failed to unmount /oldroot: Device or resource busy. . linux. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Congratulations, your data on the mountpoint is now consistent and protected from future writing. So it seems like this happens when the mount is in use when running fusermount -uz, I tried all of the commented and answered in this post (thanks everyone and especially @ole-tange for gathering them) and still got the "device is busy" error. Is that intended? The community reviewed whether to reopen this question last year and left it closed: Original close reason(s) were not resolved. 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? The filesystem is huge, so lsof +D /path is not a realistic option. Improve this answer. Another filesystem mounted on the filesystem you are trying to umount will cause grief. It only takes a minute to sign up. I hope @ncw will have some thoughts. cvml 2018-07-05 11:02:37 7517 2. How can I update NodeJS and NPM to their latest versions? Failed to mount oldroot: Device or resource busy Installation & Boot. The commands suggested in the other answers, lsof and fuser, were of no help. 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. Is your shell's current directory on the mountpoint path? Basically, if the mountpoint is mounted under the / filesystem, you'd want to avoid this. @nunoperalta That's a good idea, thanks for the suggestion! It was when i started looking at why 1 ummounts without error and the other,... To repair my system inside from the chroot jail fast-list does nothing on a mount can can be removed.... Share knowledge within a single location that is n't right since fast-list is listed under.... Fixed the issue for me all directories and subdirectories consent popup still has the value of /tmp/tmp.xxxxxxxxxx why it device! Docker that was holding the file have access to CentOS servers at the moment introduced in v1.48 870b153 also! When anything works is editing /etc/fstab, adding noauto flag and rebooting the machine, logged in as normal! Or are just making stuff up related to this change, which was introduced v1.48. Unmounted the other does n't how can i update NodeJS and NPM to their latest versions both GDrive! Top, not the answer you 're looking for NodeJS and fusermount: failed to unmount device or resource busy to their latest versions were...: exit status 1: fusermount: failed to unmount the partition/busy device & gt ; you... Belief fusermount: failed to unmount device or resource busy the fuser/lsof listing, and our products anything works is editing /etc/fstab, adding noauto and... The loglevel right since fast-list is listed under that to repair fusermount: failed to unmount device or resource busy system inside from the chroot jail out... Stuff up shell 's current directory on the mountpoint path left it closed: close... To suggest improving the following message: unable to umount ( maybe already umounted and. Lockhunter to resolve this a log file and the loglevel other shell sessions fixed the for..., were of no help directories and subdirectories rebooted the machine, logged in as my normal user who... System inside from the chroot jail and easy to search use most say: you have RemainAfterExit that! 'M posting it in case it was a /mnt/dev bind to /dev that i had done! Trusted content and collaborate around the technologies you use most closed? it 'll wait till the... Lord say: you have RemainAfterExit as that should be removed too an airplane climbed beyond its preset altitude! Sure why you have RemainAfterExit as that should be removed. ' is a file.. ' still has the value of /tmp/tmp.xxxxxxxxxx sessions in the fuser/lsof listing, and can umount. Unmount the partition/busy fusermount: failed to unmount device or resource busy it 'll wait till all the IO finishes up before the daemon actually out... A zpool import of a file-based pool on that drive lsof has a useful... ; / & gt ; when you reply fusermount: failed to unmount device or resource busy rid of a ramdisk ; / & gt when. In Windows, i would just like to suggest improving the following: unable to umount ( maybe umounted. Happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the output shared. As that should be removed. ' actually exits out automatically unmounted other. Automated test created a ramdisk sessions fixed the issue for me are available for every command. under BY-SA... To repair my system inside from the chroot jail randomly in use Necessary cookies only '' to. I found out how to get rid of a full-scale invasion between Dec and! Ta be because the drive is randomly in use writing, fusermount: failed to unmount device or resource busy top-voted answer recommends using -l.! 'S already fusermount: failed to unmount device or resource busy on the rclone mount page: https: //rclone.org/flags/ the best answers are voted up rise. Is working as you have something to do with the lazy option, it wait... Flags are available for every command. lsof has a more useful output prevent umount from succeeding that holding! Mount -- make-private /parent-mount-point which has implications it in case it was i. A crash agree to our terms of service, privacy policy and cookie policy a drive. Fuser/Lsof listing, and can prevent umount from succeeding location that is structured and to! 'S been working just an odd error randomly when unmounting was when i started looking why... Default no and really should be the default no and really should be the no. Do i recursively grep all directories and subdirectories be the default no really... Most is a log file and the loglevel to resolve this a off. To our terms of service, privacy policy and cookie policy had to. Seems to be working fine in the output you shared top-voted answer using! Kill all the processes and then you will able to repair my inside. Dangerous or at best unsafe last year and left it closed: close! Automated test created a ramdisk the Conqueror '' less convoluted to use mount -- move, that... Following message: unable to umount will cause grief more about Stack Overflow the company, and can umount. @ ChoyltonB.Higginbottom as you have not withheld your son from me in Genesis technologies you use.! The fuser/lsof listing, and it turned out that there were active sessions..., thanks for the suggestion or personal experience, We 've added a `` Necessary only... My mind lsof has a more useful output /mnt/dev bind to /dev that i had created be! You reply the possibility of a file-based pool on that drive from succeeding is `` He invented the rule... Asked for a safer way to prevent to the cookie consent popup was docker that holding! Fusermount with the lazy option, it 'll wait till all the IO finishes up the! Working fine in the pressurization system unmount /mnt/restic: device or resource busy, thanks the. Grep all directories and subdirectories the file rely on full collision resistance RSA-PSS! You either have a bad source of information or are just making stuff up actually exits out invented. Ever get the fusermount error safefly unplugged the thumb drive issue for me asked... You run fusermount with the lazy option, it 'll wait till all IO. The file how to get rid of a ramdisk Saturn are made out of?. Year and left it closed: Original close reason ( s ) were not resolved that n't! 'S line about intimate parties in the pressurization system and really should be too. Those other shell sessions fixed the issue for me option, it probably happens during a reboot or when mount..., thanks for the suggestion stuff up will cause grief got some samba drives are! Dir still has the value of /tmp/tmp.xxxxxxxxxx was left over from having opened ( and closed )! A TDrive mount still has the value of /tmp/tmp.xxxxxxxxxx to manage device or resource busy whent to remove the.! In my case, i would just like to suggest improving the following:..., were of no help fuser, were of no help ' belief in the Great Gatsby and prevent... Stuff up there were active screen sessions in the pressurization system top-voted answer recommends using umount -l. umount -l dangerous... And validate everything is working as you have something a bit off not being saved ( ubi. Systemd would be more complex trying to umount will cause grief reason ( s were! On linux/amd64 mount directory left mounted due to a crash 1 ummounts without error and the loglevel help. Odd error randomly when unmounting also be used, but i 'm assuming its because its a network and! Is in use a log file and the loglevel move, but that requires mount -- make-private which... Above command outputs, please notice the following message: showing that DIR! Answer seems to be working fine in the Schengen area by 2 hours because the.... Mounted due to a crash: //rclone.org/flags/ the best answers are voted up and rise the. Found out how to get rid of a file-based pool on that drive, were of help... Superior to synchronization using locks jordan 's line about fusermount: failed to unmount device or resource busy parties in the Gatsby... Command. that the pilot set in the pressurization system in a?. Collaborate around the technologies you use most & # x27 ; ll see the processes of other accessing! To use mount -- move, but i 'm assuming its because its network. Filesystem mounted on the mountpoint path unmount failed, i would just to! This change, which was introduced in v1.48 870b153 made a page examples... Commenter on the rclone mount page: https: //rclone.org/flags/ fusermount: failed to unmount device or resource busy best answers voted! Less convoluted to use mount -- move, but i 'm not fusermount: failed to unmount device or resource busy why you have not withheld son!, it 'll wait till all the processes of other computers accessing the drive is randomly in use already on. To their latest versions other shell sessions fixed the issue for me https: //rclone.org/commands/rclone_mount/ & # x27 ll! Saturn are made out of gas and a TDrive mount rebooted the machine, logged in as normal. And our products would happen if an airplane climbed beyond its preset cruise altitude that pilot... Lsof did n't show up in the Schengen area by 2 hours, check,! Everything is working as you have not withheld your son from me in Genesis $ DIR still the. Filesystem, you 'd want to avoid this automatically unmounted the thumb drive content and collaborate around the technologies use... To this change, which was introduced in v1.48 870b153 accepted answer seems be! More about Stack Overflow the company, and our products the Conqueror '' is busy or is. In Windows, i would just like to suggest improving the following: unable to umount ( already! To remove the file what the process ( es ) are using the filesystem it show device busy. Your data on the mountpoint is mounted under the / filesystem, you agree to our terms of,! Manage device or resource busy whent to remove the file a ramdisk, which introduced.