Umount Device Is Busy Lsof Shows Nothing


and you obtain this message when using root privileges $ sudo umount /mnt/target umount: /mnt/target: device is busy. umount: /sscfs: device is busy. Option 1: Force unmount ∞ There are options of umount to detach a busy device immediately even if the device is busy. There's this question on Linux & Unix SE: umount: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser. Problems i have encountered are as follows: 1) Uploading a sketch works 1/5 times. umount /Mounted/directory. Instead I get a message "device is busy. # umount /testfs umount: /testfs: device is busy No surprise there. /etc/inittab determines the default runlevel for the system and starts the appropriate daemons for that runlevel. [prev in list] [next in list] [prev in thread] [next in thread] List: aix-l Subject: Re: HACMP: umount fails and fuser finds nothing - Fix and Work-around From: Christopher Baker /cmdline. However the use of the -v option with lsof is not. A fuser -c /myfs tells me that nothing on this fs is in use. umount: /: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). Message saying can not be unmount / eject device is busy (or some other apps still trying to access it) * Start a terminal, sudo to root, unmount /media/cdrom0 saying device busy. Thus, I thought of booting into single user mode, lvextend the logical volume, unmount /var, and resize2fs the filesystem. but suddenly my phone restarted in between transfer. All you have to do is stop vi process and run umount again. Please use # /scripts/clear_orphaned_virtfs_mounts --help Unmount any virtfs mounts whose users no longer exist or whose shell is not currently jailshell/noshell. To add to BruceCran's comment above, the cause for my manifestation of this problem just now was a stale loopback mount. umount /oracle is successful. from /dev/sdc1 to /dev/sdd1. Summary: Linux lsof command examples I hope these Linux lsof command examples have been helpful. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) Some filesystem are not unmounted as its busy or currently in use. I'm a bit busy right now so I can't help you much more, but hopefully I've pointed you in a direction to go. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) In this case you have to umount using -l option. Make sure all files from it are closed and no terminal or file manager is open in a directory on that volume. I usually resort to sync a few times, remounting. " I cannot identify what process supposedlly is using the cd and thus creating this condition. ) The -f option is for unreachable NFS system. Nothing open on the mounted filesystem. " or "The disk "Diskname" wasn't ejected because one or more programs may be using it. 25 is supported auto-destruction of loop devices and then any loop device allocated by mount will be freed by umount independently on /etc/mtab. In the past, I have personally resorted to grepping through files under /proc/[0-9]*, using netstat to find port numbers etc, to do such detective work, not always successfully. $ umount /mnt/data umount: /mnt/data: device is busy umount: /mnt/data: device is busy $ umount -f /mnt/data umount2: Device or resource busy umount: /mnt/data: device is busy umount2: Device or resource busy umount: /mnt/data: device is busy $ lsof | grep data So the kernel obviously thinks the filesystem is in use, but I'm. To avoid umounting submounts of /dev (e. sudo umount /dev/loop0 I will get the message. (Requires kernel 2. [[email protected] ~]$ sudo umount /mnt/share umount: /mnt/share: device is busy. Device or resource busy umount: /net: device is busy. Kill any processes, then repeat the unmount command until successful. Solucionar en Linux el mensaje "device is busy" cuando queremos desmontar / ejecutar umount sobre un dispositivo usb. Above output tells that user vivek has a vi process running that is using /dev/sda1. Introduction to Linux I Chapter 21 Exam Answer CCNA7. Sometimes when I want to umount a device, e. The passphrase is cleared from RAM within a fraction of a second of mounting the pool. fuser and lsof show nothing. and you obtain this message when using root privileges $ sudo umount /mnt/target umount: /mnt/target: device is busy. I've used both the lsof and fuser commands but nothing gets returned that references the file system I'm trying to unmount. umount: /mountpoint: device is busy A process is using a file but you have no idea which process To view a list of active connections (netstat works better for this) and which program and PID (Process ID) is using this socket. One Windows annoyance is when you use the option safely remove a USB device, to remount the device, you normally have to unplug and insert it again to be recognized. lsof stands for List Of Openfiles is a powerful command to analyze which files are open by the process. sh script that will simply loop indefinitely, pausing every second as it goes. Please excuse me asking the question again, but I can't get the dang thing unmounted tonight. Managing VMFS volumes esxcli storage filesystem list shows all volumes, mounted and unmounted, that are resolved, that is, that are not snapshot volumes. $ umount /mnt/data umount: /mnt/data: device is busy umount: /mnt/data: device is busy $ umount -f /mnt/data umount2: Device or resource busy umount: /mnt/data: device is busy umount2: Device or resource busy umount: /mnt/data: device is busy $ lsof | grep data So the kernel obviously thinks the filesystem is in use, but I'm. but I always get: device is busy - so I can't umount the old root. Because you're lazy - you want to unmount after the disk operations are done. A fuser -c /myfs tells me that nothing on this fs is in use. I'm trying to unmount a file system, but umount says the device is busy. There are options of umount to detach a busy device immediately even if the device is busy. clusvcadm -e [service name] For example: clusvcadm -e app_service Step Action Command 1 Run the DSr 25. nfs woes, how to properly unmount exported filesystems on reboot using lsof, i determined that there were no open files on any filesystem other than / (except of course for lsof and less on. I'm a bit busy right now so I can't help you much more, but hopefully I've pointed you in a direction to go. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) [[email protected] ~]$ This was getting personal now as the previous messages said nothing about the device being in use. > >> You may find that the device had problems during boot, and the fsck is >> 'trying' to fix them - but is. Quote: Please try to reboot the NAS and then log right back into SSH on the QNAP and run the commands again to see if it can stop the process. i tried going to the settings to unmount the sd card but it says the sd card is not present? Hi, just wanted to check that my sd card is working as it says "sd card blank or has unsupported file system". Right, sorry, forgot to say in the initial comment that when I attempt to unmount I get: umount: /mnt/c: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). But after that, even it is unmounted successfully, I can't delete the directory. But with -l, we can do it now: # umount -l /testfs No complaints, and a check of "mount" shows it is really gone. You can see that the device is busy, so check out who is using it. 'lsof /dev/video0' returns nothing when the light is stuck on after killing Motion. The entry in mnttab is still there, but the presumably still > mounted dir is not accessible that way. Again best run as root. mount umount busy umount umount IS-IS IS device device device device What is device mapper Linux kvm device is busy device or resource busy ios 调试 device busy usb_composite_register Device or resource busy insmod. If not, the question becomes why your system's trying to unmount something that's not there and why the operation's hanging. Conversely, the umount command will detach it again. This is a common problem when trying to unmount a filesystem that is currently in use, especially when you have no idea what is using it! Here’s a test. jpaana wrote: I think your problem is that "blueman-r" process as my system doesn't list any processes with "lsof /dev/rfcomm0" when not connected and indi_eqmod_telescope when it is. At some point, every Linux or UNIX systems administrator needs to unmount a partition in response to some emergency or simply to remove a device such as a mounted CD-ROM or DVD. For example, `lsof /usr` on a 4. , method for organizing data). lsof /path , lsof +f -- /path , and fuser /path all return nothing. beacuse some process is running on this mount point so u r not able to umount it fuser -cu 2. What happens basically, is that Linux will not allow you to unmount a device that is busy. It is best that you do not perform a forced unmount so that files are not corrupted. The entry in mnttab is still there, but the presumably still > mounted dir is not accessible that way. …will show the process and any files it accessed by the startup command. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) Sat Jan 30 19:49:53 CST 2016: mmremote: Initiating GPFS. My NFS server is up and other clients can access x. So, check /etc/inittab as well. True, lsof/fuser don't > report processes against the filesystem, but "df" and "mount" show that > it's still there, and I can write to and read from it after I try a > "umount -f". ) The -f option is for unreachable NFS system. The nfs, nfs4, cifs, smbfs, and ncpfs filesystems have a separate mount program. Sometimes there are processes running which have open locks on it, sometimes there are other directories mounted on top of /mnt/dir. In the past, I have personally resorted to grepping through files under /proc/[0-9]*, using netstat to find port numbers etc, to do such detective work, not always successfully. 3 Grid Infrastructure for standalone server. filepart Maemo 5 / Fremantle. Before physically removing a previously mounted floppy or CDROM disk, the device must be umounted, else filesystem corruption may result. It's not enough that it tells you the device is busy, it should tell you why it's busy. $ umount /mnt/data umount: /mnt/data: device is busy umount: /mnt/data: device is busy $ umount -f /mnt/data umount2: Device or resource busy umount: /mnt/data: device is busy umount2: Device or resource busy umount: /mnt/data: device is busy $ lsof | grep data So the kernel obviously thinks the filesystem is in use, but I'm. To determine the cause of device busy errors trying to unmount, for example, /mnt/cdrom, issue: $ su # lsof | grep /mnt/cdrom will retrieve all the processes that have open files on the device. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)). File referenced by drivers will not show up on the lsof nor fuser output. It turned. The umount command is used to manually unmount filesystems on Linux and other Unix-like operating systems. ) Can I unmount root?. Mounting a CD-ROM (or any other physical media, such as a floppy disk, a ZIP disk or a hard drive) tells the operating system which block device to use and where that device is to appear within the directory tree — the mount point. I checked the contents of /cdrom and it's the linux mint live USB stick. Well I’m using Linux more than 15 years and I know “umount -f” is the only solution, but. ) Trying to find out what uses /media/USB\ DISK/ by using lsof +D as suggested reports - nothing. $ umount /mnt/data umount: /mnt/data: device is busy umount: /mnt/data: device is busy $ umount -f /mnt/data umount2: Device or resource busy umount: /mnt/data: device is busy umount2: Device or resource busy umount: /mnt/data: device is busy $ lsof | grep data So the kernel obviously thinks the filesystem is in use, but I'm. Open this post in threaded view ♦ ♦ | umount fails with device is busy I'm trying to run xfs_repair on my filesystem: Firstly to unmount the fs Quote: umount /myfs umount: /myfs: device is busy umount: /myfs: device is busy Quote: lsof /dev/sda -show none ie nothing seems to be 'touching' the disk. umount /oracle is successful. -m Shows all processes using the file system-u Displays user IDs-v Provides verbose output Try to unmount the file system to see whether it is busy: # umount /opt/backup umount: /opt/backup: device is busy. It ALWAYS gets stuck with Unmounting disksRetry unmounting disk share(s) and I am forced to use IPMI to force a reboot. # umount /dos # mount /dev/sda9 /dos # umount /dev/sda9. How do I list the users on the file-system /nas01/?. If the current working directory of any process (such as your shell) is any directory in that filesystem, or if any process has any file open from that filesystem (such as vi) then the device will be considered busy. lsof /folder - (Show which process is blocking umount (Device or resource is busy) Instead of using force un-mounting, it's better to find the processes that currently use the relevant folder. Problems i have encountered are as follows: 1) Uploading a sketch works 1/5 times. ) The -f option is for unreachable NFS system. Block device 254:1 # Now unmount all these volumes (if they are mounted) $ umount /dev/vol01/lv01 $ umount /dev/vol01/lv02 # In case you get a "device is busy" error, check out what processes use them (lsof /dev/vol01/lv01) and stop/kill them. i`m using a sandisk 32mb sdhc card in a; Unmount sd card htc. Basically the umount of an ntfs-3g mount point is being blocked because the pid of another ntfs-3g program (mounting a separate device at a separate mount point. The use of lsof and fuser is quite common knowledge. umount: /spare: device is busy Prior to unmounting the filesystem, you must clear any processes that are accessing it. How to umount when 'device is busy' Robert Leong - September 20, 2016 01:02 For Linux, if can not umount due to 'device is busy', do one of the following, this example shows Spycer was doing something. This would have more than fuser and lsof? Umount Nfs Device Is Busy. An alternative is lsof /mnt/dir, which will show each open file on the mount. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))" I suppose it has to do with an update to CentOS 6. Trying to unmount the CDROM gives "device busy I know that this means that the CDROM directory is being accessed from one of my shells and that I should cd away from there, but which one is it? This is very annonying when you have a lot of terminal windows open or when the process that originally accessed the CDROM unexpectedly died. Wysocki wrote: > > The following bug entry is on the current list of known regressions > > introduced between 2. Instead I get a message "device is busy. googled it and no joy. When the system won’t let you unmount a device because that device is busy, examining every process on the system is both irritating and slow. I'm trying to unmount a file system, but umount says the device is busy. umount /vagrant/ umount: /vagrant: device is busy. nfs woes, how to properly unmount exported filesystems on reboot using lsof, i determined that there were no open files on any filesystem other than / (except of course for lsof and less on. No link has helped - but a mix of them gives the solution. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) [s1: ~]# I have tried to find who is using it, but neither lsof nor fuser does not show any process using the file system:. umount: /media/USB DISK: device is busy (This is what would normally happen to my home partition when I shut down. (Requires kernel 2. It shows what files are in used by what processes. Start studying Linux 101 Domain 4. Agux y sus bits: Desmontar unidad en linux: device is busy skip to main | skip to sidebar. This tutorial will help you to mount and unmount filesystem in Linux system. jpaana wrote: I think your problem is that "blueman-r" process as my system doesn't list any processes with "lsof /dev/rfcomm0" when not connected and indi_eqmod_telescope when it is. The most useful tool is lsof. And this is essential because after all, we know that Linux is nothing but a bunch of files, right?. I also tried to umount proc before doing the pivot_root, but no luck either. Open this post in threaded view ♦ ♦ | umount fails with device is busy I'm trying to run xfs_repair on my filesystem: Firstly to unmount the fs umount /myfs umount: /myfs: device is busy umount: /myfs: device is busy lsof /dev/sda -show none ie nothing seems to be 'touching' the disk. So filesystem where grid software is running can't be umounted on boot. , /lib/libc. Restarting the computer solves the problem. Unmount blank sd card. Ah, apparently rob is cd'd to /mnt (since his bash process has it set as its cwd). I tried to unmount the NFS share: [[email protected] ~]# umount -f /disk/x umount2: Device or resource busy umount. Try this: grep /oldroot /etc/mtab to see if there's really something mounted there. (In some cases useful info about processes that use: the device is found by lsof(8) or fuser(1)) # lsof /mnt/test/. Trying to unmount the CDROM gives "device busy I know that this means that the CDROM directory is being accessed from one of my shells and that I should cd away from there, but which one is it? This is very annonying when you have a lot of terminal windows open or when the process that originally accessed the CDROM unexpectedly died. Then you still get the "device is busy" message even though no program is using the device. The lsof is an excellent utility that can be used to identify process or user that is locking system resource such as file. We can use lsof command for this. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) Unmounting is not possible if the mount point is accessed by a process. If you attempt to unmount a filesystem while a process has open files on that filesystem. umount: device is busy umount: /tmp/disk: device is busy. Please beware that forcibly unmounting a VxFS file system will not clean up the kernel data structures referencing the VxFS kernel module. # Now deactive the volume group. At least, it appears to (-l means Lazy Unmount, Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. mount: /dev/sdb1 already mounted or /blah busy It's actually an iSCSI LUN (NetApp filer). This file contains the mounting file system table information after system reboot and /etc/mtab holds the current mounted table information. Basically the umount of an ntfs-3g mount point is being blocked because the pid of another ntfs-3g program (mounting a separate device at a separate mount point. If you've already tried "fuser -ck /somefs; umount /somefs" then I think a reboot would be the only way to fix it. Follow the step: Step Action Command. So, your options are --Kill all of those running processes, and when "fuser -m /tmp" no longer shows any processes holding a file in /tmp open, you can then umount /tmp (which you'd run twice). So filesystem where grid software is running can't be umounted on boot. Because there are often thousands of open files, listing all of them is rarely useful. # umount /u01 umount: /u01: device is busy. Ran slibclean. (Requires kernel 2. Why doesn't pivot_root remove the proc mountpoint from old. Can't get umount to work - device is busy When trying to unmount (via umount) a file system, I get 2 infamous "device is busy" messages. I have two kernels on my system: a custom configured vanilla kernel 3. Anything I have tried has failed: ie lsof shows nothing, fuser shows nothing, i'm not on that mount point, fuser -k variants tell me to use umount, switching down runlevels doesn't help. smartmobilephonesolutions. File referenced by drivers will not show up on the lsof nor fuser output. umount: /media/sda2: device is busy. When I umount cdrom got umount: /live/image: device is busy umount: /live/image: device is busy fuser -k /media/disk does not help. Once umount -l /oracle has been issued one single time, further starts & stops of oracle result in expected behaviour, e. Would you like to answer list pids? How could a language that uses Umount Device Is Busy Force ? is the place to report it, thanks ! It means to unmount the filesystem even if the server is. Sometimes thunar gets stuck there, and closing it is not enough. # cat /proc/mounts |grep docker # umount /var/lib/docker/aufs umount: /var/lib/docker/aufs: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). This works for other OS such as latest Fedora Core or Ubuntu, but not for CentOS 7, so I think the kernel CentOS 7 is using has some bugs. Select the SMIT Physical and Logical Storage--> File Systems--> Unmount a File System--> NAME of file system to unmount menu option. Develop the skills that you need to. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) umount: /mnt/utmp/albert: device is busy. Now, a scenario: Say you have an external device that you want to eject. Launch up Terminal. The lsof and fuser commands make it easy to identify the processes. Use the kill command with the process number to kill whatever process has the files open you want closed. For example, `lsof /usr` on a 4. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) umount: /run: device is busy. squashfs Output information maybe incomplete. Although I never saw such problems myself binding /dev from the host into a chroot is a bad idea anyway. medium is a typical task for lsof. Because there are often thousands of open files, listing all of them is rarely useful. I had just now the same problem, umount won't unmount my loop-device. what could keeping the device "busy" … ? __ Thanks, LF Transparent GNOME Terminal In CentOS 7? Install Latest Gcc/g++ Dev Tools On CentOS >>. > >> You may find that the device had problems during boot, and the fsck is >> 'trying' to fix them - but is. This is because lsof needs to know the device and inode numbers of files listed with names in the lsof options, and the -b option prevents lsof from obtaining them. clusvcadm -e [service name] For example: clusvcadm -e app_service Step Action Command 1 Run the DSr 25. Re: [DRBD-user] DRBD device held open by. Command to show all opened Internet sockets # lsof -i Command to print all tcp connections # lsof -i tcp Command to print all udp connections # lsof -i udp. # umount /myfilesystem umount: /myfilesystem: device is busy. The entry in mnttab is still there, but the presumably still > mounted dir is not accessible that way. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) You confirm that no terminal windows have a shell set to that working directory. I hope this helps a bit. /proc/mounts shows that the proc fs is still mounten under old-root/proc and an umount old-root/proc doesn't work either (device is busy, too). For a few types however (like nfs, nfs4, cifs, smbfs, ncpfs) ad hoc code is necessary. But after that, even it is unmounted successfully, I can't delete the directory. /etc/mtab shows currently mounted volumes. 5 Unmount the disk. (In some cases useful info about processes that use the device is found by lsof(8) or fuser. When mounting USB drive, fdisk -l. I also tried to umount proc before doing the pivot_root, but no luck either. I get messages about "Device or resource busy" when trying to unmount encrypted or unencrypted partitions when some file is still open on that partition. umount: /: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). Issuing the command umount /mnt/cdrom is useless. If you're having trouble unmounting a filesystem, this is the best way to go. I usually resort to sync a few times, remounting. The referenced blog post lists most reasons for an umount to fail. medium is a typical task for lsof. This wikiHow teaches you how to unmount a hard drive that is connected to your computer. Conversely, the umount command will detach it again. lsof|grep /live/image shows lsof: WARNING: can't start() squashfs file system /filesyste. All you have to do is stop vi process and run umount again. fuser and lsof show nothing. # umount /mnt/disk_image_loop umount: /mnt/disk_image_loop: device is busy. I had just now the same problem, umount won't unmount my loop-device. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) Use fuser command to find out which process is accessing the device along with the user name. Would you like to answer list pids? How could a language that uses Umount Device Is Busy Force ? is the place to report it, thanks ! It means to unmount the filesystem even if the server is. So filesystem where grid software is running can't be umounted on boot. the device is found by lsof(8) or fuser(1)). -f, --force Force an unmount (in case of an unreachable NFS system). LazySystemAdmin is a useful how-to website that covers System Administration, Operating Systems, Cloud, DevOps, Virtualization, Scripts and Video Tutorials. Which is funny because nothing should have been accessing it. /etc/inittab determines the default runlevel for the system and starts the appropriate daemons for that runlevel. If you inspect the chroot2. Not only will it show you the process list, it will also report back the file handles, DLLs used by different tasks, network and disk activity, and a lot more. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) umount: /run: device is busy. Killed all user processes and non essential root processes. I had issues unmounting a device, it kept saying device was busy. sh script that will simply loop indefinitely, pausing every second as it goes. Even if I unmount the device from the system connecting through NFS, the device is used since it is exported. umount: /media/USB DISK: device is busy (This is what would normally happen to my home partition when I shut down. Ive had this issue as long as I remember, literally years. I have basically the same setup and have had the exact same problem for quite a long time now. "(In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). 1 $ service xend stop nothing is using the partition $ lsof |grep srv. # fuser -kxuc /filesystem # lsof /filesystem But notice, if you kill the process and cannot still umount the filesystem, probably a grumpy application is respawning in inittab. Hi, In VCenter, we can easily "edit settings", select the virtual hard disk give it more space. Open this post in threaded view ♦ ♦ | umount fails with device is busy I'm trying to run xfs_repair on my filesystem: Firstly to unmount the fs umount /myfs umount: /myfs: device is busy umount: /myfs: device is busy lsof /dev/sda -show none ie nothing seems to be 'touching' the disk. Voila! No more timeouts checking disk space, lsof's, and the mount point is no longer mounted. You can mount a filesystem on any directory and access content by entering to that directory. Thus, I thought of booting into single user mode, lvextend the logical volume, unmount /var, and resize2fs the filesystem. I checked the contents of /cdrom and it's the linux mint live USB stick. Remove active devices before unmounting a file system. when trying to unmount a filesystem, you might get an error: umount: /dirname: device is busy probably some process is using the filesystem (it's busy -- make sure you're not in that directory!) lsof /mountpoint # list open files in the filesystem mounted on /mountpoint lsof +D /directory this will show you what processes are using the. umount: /home: device is busy. Mounting the CD-ROM. If the volume is busy, you'll see output like this: umount: /mnt/mount_point: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). We can use lsof command for this. Problem is that this is a recurring issue in mojave on my fusion drive. How can it find out which processes are making my zpool busy, so I can try and gracefully export the zpool without -f? How safe is -f ? I've tried : lsof | grep zpool_name but returns nothing. Calling lsof with the -t directoryname option returns a list of numeric process IDs accessing the CD-ROM: $ umount /dev/cdrom umount: /cdrom: device is busy $ kill -9 `lsof -t /dev/cdrom` $ umount /dev/cdrom $ eject However, this method is as drastic as it is effective. The only way to umount the backup unit is to so before restarting mysqld. Sometimes a mounted device can freeze up, and it gets impossible to unmount it using the umount command. This command is useful if a particular file is shown as busy rather than a directory. com Thu Jun 16 23:39:24 PDT 2011. One Windows annoyance is when you use the option safely remove a USB device, to remount the device, you normally have to unplug and insert it again to be recognized. Any idea? Oh, and btw, why isn't my signature beeing displayed? Sh | The UNIX and Linux Forums. Since everything in Linux is a file, this tool can tell you a fantastic amount of information about your … - Selection from LPI Linux Certification in a Nutshell, 3rd Edition [Book]. Anything I have tried has failed: ie lsof shows nothing, fuser shows nothing, i'm not on that mount point, fuser -k variants tell me to use umount, switching down runlevels doesn't help. The entry in mnttab is still there, but the presumably still > mounted dir is not accessible that way. Suppose, for example, you want to unmount a file system mounted at /mnt. show all rpm packages with the name "httpd" # rpm -qi [package] obtain information on a specific package installed # rpm -qg "System Environment/Daemons" show rpm packages of a group software # rpm -ql [package] show list of files provided by a rpm package installed. Next, stop db2fmcd:. Please share it if you find this article is useful through our comment box below. If not, the question becomes why your system's trying to unmount something that's not there and why the operation's hanging. The only way to umount the backup unit is to so before restarting mysqld. This website to share our expertise and knowledge on Linux, UNIX, Windows, Hardware, Security, Cloud and Open Source. Syntax: fuser [options] | Options: -c Checks the mounted file system -k Kills processes using the file system -m. Ran slibclean. ) Since Linux 2. Introduction to Linux I Chapter 21 Exam Answer CCNA7. filepart Maemo 5 / Fremantle. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) Sat Jan 30 19:49:53 CST 2016: mmremote: Initiating GPFS. lsof|grep /live/image shows lsof: WARNING: can't start() squashfs file system /filesyste. lsof will list all open files, directories, libraries, sockets, and devices associated with a particular process. I had issues unmounting a device, it kept saying device was busy. Does mysql see the data on the backup drive and recognize it as mysql databases?. " I cannot identify what process supposedlly is using the cd and thus creating this condition. 6 Start the cluster. when the drive starts spinning again after hd-idle pu it to sleep i cant unmount it via terminal using sudo umount /dev/sda1: [email protected]:~ $ sudo umount /dev/sda1 umount: /media/pi/66926CEA926CBFE3: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). The nfs, nfs4, cifs, smbfs, and ncpfs filesystems have a separate mount program. Re: Examination failed (Cannot unmount disk by ) In the web you will find a lot of links, what to do. [~] # umount /dev/md0 umount: /share/MD0_DATA: device is busy umount: /share/MD0_DATA: device is busy. [prev in list] [next in list] [prev in thread] [next in thread] List: aix-l Subject: Re: HACMP: umount fails and fuser finds nothing - Fix and Work-around From: Christopher Baker alter system set memory_max_target=1024m scope=spfile; System altered. The last lines (starting with umount) are added as soon as I hit the stop-button of the stalled backup task. However it tells me that device is busy. Which will list information about files opened by processes. I successfully configured (ext3) and mounted it, but when I rebooted, the /dev/sdb1 device/partition is seen by the kernel and it shows up with "fdisk -l". Sometimes when I want to umount a device, e. (Requires kernel 2. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) When I run fuser -m /dev/sda3 I get a good sized list: 1 303 311 594 649 672 692 696 700 738 754 786. sh script that will simply loop indefinitely, pausing every second as it goes. There are 29 questions in Introduction to Linux I Chapter 21. SQL> startup force ORA-00845: MEMORY_TARGET not supported on this system SQL> exit. In our previous tutorial I have explained the concepts of mounting and unmounting the filesystems, Now let us see how to unmount a busy filesystem …In Linux/Unix If a device is reporting busy then it won’t let you bring the device to inactive state, the file system will report busy (umount /dev/***: device is busy)when you […]. - nas-e2fsck. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) I usually solve this issue by closing a console window (in my case xfce4-terminal) and then umount. (In some cases useful info about processes that use the device is found by lsof (8) or fuser (1)) lsof /vagrant/ COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME less 2064 vagrant 4r REG 0,18 3978 2 /vagrant/Vagrantfile. Expectations The commands listed in. I have managed to umount device with the -l option. Nothing open on the mounted filesystem. And this is essential because after all, we know that Linux is nothing but a bunch of files, right?. A fuser -c /myfs tells me that nothing on this fs is in use. umount /oracle is successful. Sometimes a mounted device can freeze up, and it gets impossible to unmount it using the umount command. Cannot "Umount /media/mmc2" - Device busy Troubleshooting. Checked > > again using lsof. The most useful tool is lsof. My question: What are the steps to check why a directory couldn't be unmounted. When I umount cdrom got umount: /live/image: device is busy umount: /live/image: device is busy fuser -k /media/disk does not help. Problem is that this is a recurring issue in mojave on my fusion drive. sh script that will simply loop indefinitely, pausing every second as it goes. How do I unmount a busy device in Linux? Use umount to unmount the volume, making sure to substitute in its mount point. If you don't know the device name (visible in dmesg output), you can run cat /tmp/usbtab to get a list of USB devices. Your device is already in use by something: LVM, device mapper, etc. The ids of processes using the filesystem and what they are using it for can be obtained by using either of the commands fuser (traditional) or lsof. Use mount Command. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) How can I get this drive r/w?. Please use # /scripts/clear_orphaned_virtfs_mounts --help Unmount any virtfs mounts whose users no longer exist or whose shell is not currently jailshell/noshell. 3 machine (although I have no issues programming it). [systemd] Nothing new, had to put in place of /bin/umount, it calls > lsof to show what is going on before the. [[email protected] ~]$ sudo umount /mnt/share umount: /mnt/share: device is busy. On Sunday 04 October 2009, Mikael Pettersson wrote: > Rafael J. 6 Start the cluster. And this is essential because after all, we know that Linux is nothing but a bunch of files, right?.