Umount Nfs Device Is Busy

When you unmount a filesystem, you may get "device is busy error" sometimes. I was actually able to umount it, I used: umount -f -vvv and it got unmounted somehow I am not sure if it. Any idea? Oh, and btw, why isn't my signature beeing displayed? Show user's signature is enabled and I have entered one :/ (10 Replies). The Linux kernel contains the guest driver for the. 首先查找谁在占用:#fuser /mnt/nfs 得到进程号。. Force unmount even if busy. umount, device busy, but. ENXIO The major number of the block device specialfile is out of range. umount がうまくいきません。 【現象】 umount を実行すると、"device is busy" または umount: /mnt/cdrom: デバイスを使用中です と表示されます。 【原因】 一般的に問題になるのは、mount したディレクトリを何らかのプロセス(プログラム)が 使っている場合です。. Force unmount (in case of an unreachable NFS system). If something is misbehaving this may easily be never, and you won't help you do an fsck or mount. You'll get a notification as soon as your website is down, a monthly uptime report, a warning a few days before your SSL certificate expires and much more!. This can cause data loss. In this case, you must reboot the node to. And if you try to umount the remote file system you get this error:. I think your suggestion is incorrect. Please be aware that programs may not expect a force or lazy unmounting and. Umount says device busy, but nothing is mounted "below" that > target. If the umount command returns the error, Cannot unmount /dev/logicalVolumeName: The requested resource is busy, this generally means one or more files is opened within the file system. [SOLVED] NFSv4: "Device is busy" This is a weird issue, because it happened just today, having been using nfs for years, and because it is triggered by trying to access the "root" filesystem on the server (the one with fsid=0). nfs: /mnt/test: device is. Programs accessing target DEVICE/NFS files may throw errors OR could not work properly after force unmount. 杀死进程:#kill -9 进程号. In principle is concerned it oust of nfs lock. There is a way to detach a busy device immediately (even if it is busy and cannot be unmounted forcefully). If there are some VxVM Volumes in the same diskgroup being used as Raw devices, the applications using them must be stopped. -#define BB_FEATURE_FANCY_TAIL +#define CONFIG_FEATURE_FANCY_TAIL // // Enable support for loop devices in mount -#define BB_FEATURE_MOUNT_LOOP +#define CONFIG_FEATURE_MOUNT_LOOP // // Enable support for a real /etc/mtab file instead of /proc/mounts -//#define BB_FEATURE_MTAB_SUPPORT +//#define CONFIG_FEATURE_MTAB_SUPPORT // // Enable support. You need a support contract with RHEL to get DRBD (they partnered with Linbit after it was decided to not support DRBD in EL6 because DRBD didn't get into the mainline kernel until 2. You may cleanup all later: umount -l /PATH/OF/BUSY-DEVICE umount -f /PATH/OF/BUSY-NFS(NETWORK-FILE-SYSTEM) NOTE: These commands can disrupt a running process, cause data loss OR corrupt open files. 2=Umount -F nfs /jj 3=unshare the share device from NFS server. , unreachable NFS server) -l Do not free loop device (if a loop device has been used). umount -t nfs -b /foo unmount all nfs filesystems except /foo ERROR MESSAGES From mount: mount: device on mountdir: Invalid argument This message appears for a wide variety of problems. --fake Causes everything to be done except for the actual system call; this 'fakes' unmounting the filesystem. On a hunch, further testing shows that it's not necessary to actually stop the nfs daemon, just remove the entry from /etc/exports for the filesystem you wish to unmount and run 'exportfs -r'. The fstab entries look good to me. The umount command will automatically detach loop device previously initialized by mount(8) command independently of /etc/mtab. When mounting USB drive, fdisk -l. nfs服务端服务停掉,导致的客户端访问挂载目录卡死的情况 Device or resource busy. It is also possible that this may occur if the file has been deleted and recreated with the same name in the same directory. For example: umount. sshfs A uhelper=something marker (unprivileged helper) can appear in the /etc/mtab file when ordinary users need to be able to unmount a mountpoint that is not defined in /etc/fstab (for example for a device that was mounted by udisks(1)). 怎麼解決 umount device busy 的問題,使用 fuser; 固定 NFS port numbers; NFS建置檔案伺服器; virtualbox安裝在linux下而windows虛擬機器怎麼掛載usb; 如何在非LVM環境掛載LVM磁區的硬碟; 最近遇到 VirtualBox 上的子機使用 NFS 時很慢. 取消挂载 umount 时出现的 “Device is busy” 发布时间:2008-09-08 17:00:42 作者:佚名 我要评论 在 Linux 下 umount 挂载的优盘或者移动硬盘的时候,经常会出现 “Device is busy” 的提示,哦~真让人恼火,在 Windows 下的那个无法卸载移动设备的问题,竟然也窜到了 Linux 下. NFS마운트 해제시 "device is busy"문구와 함께 마운트 해제가 되지 않는 경우가 있습니다. Information in your profile (your name, country/region, and company name) is displayed to the public 2 Message Author Comment by:rammaghenthar2007-09-23 Like how to convert NFS hardmount to soft mount ?. nfs mount: mount: string: Device busy Cause. 11) Perform a lazy unmount: make the mount point unavailable for new accesses, and actually perform the unmount when the mount point ceases to be busy. Hello, I want to unmount a busy NFS share, but failed to do so, even with a umount -f. mount的基本用法是?. For example, let's assume that you want to unmount the unit / cdrom / cdrom1. For example, if you want to umount a inaccessible NFS file system, then try. I use lazy umount in cases where it was obviously stuck for various reasons (such as nfs server down), also when I need to see the original content of the directory that was mounted over by the mount. com\\D$' end Stop a service, do stuff, and then restart it The following example shows how to use the execute , service , and mount resources together to ensure that a node running on Amazon EC2 is running MySQL. The domain mfs-co. The output from the server where the problem “State change failed: (-12) Device is held open by someone” is still exist. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. - user83293 Sep 24 '13 at 6:50. Takes an absolute path of a device node, file or other resource to mount. 116 or later. , method for organizing data). The uhelper (unprivileged umount helper) is possible to used when non-root user wants to umount a mountpoint which is not defined in the /etc/fstab file (e. I think your suggestion is incorrect. nfs: /xxx: device is busy. A filesystem in this context is a hierarchy of directories that is located on a single partition (logically independent section of a hard disk drive ) or other device , such as a CDROM , DVD, floppy disk or USB key. -d , --detach-loop When the unmounted device was a loop device, also free this loop device. B Force to umount - IBM: AIX - Tek-Tips. You can use `fuser` to show which processes have filedescriptors open to a given filesystem. how to unmount stale NFS connection. or, you can try this command, # umount -l /testfolder Additional note: The command will is named as lazy unmount. 11) Perform a lazy unmount: make the mount point unavailable for new accesses, immediately disconnect the filesystem and all filesystems mounted below it from each other and from the mount table, and actually perform the unmount when the mount point ceases to be busy. Ive created 2 6TB partitions on our new SAN Eonstore boxes using XFS linux-2. If the device is busy then above command will not work. Hello everybody, I'm having a 'little' problem while unmounting a NFS filesystem. 3 NFS的安装配置、启动及mount挂载方法,特分享下,方便需要的朋友. Network security articles and troubleshooting guides Device or resource busy umount. I understand that this helps avoid data lost by disallowing unmouting a filesystem when it is being used. umount /dev/dsk/c1t2d3s4 umount /mnt. mounted Once done you can unmount the device # umount (mount point) Follow the below links for more tut orials. Ive used parted to do the partitioning and guid as the partitiontable type. The offline script for the Mount resource will use this new option. You should peek at Yahoo’s front page and see how they create post headlines to get viewers interested. nfs share can't be unmounted, "device is busy" I'm running oVirt on CentOS-6. umount device is busy 站內文章. umount: /mnt/cdrom: device is busy (转)_奶奶的熊_新浪博客,奶奶的熊, Every wonder why sometimes you get this message when you try to un-mount a NFS drive or cdrom drive (不能. I assume you meant to run mount on the server. The unmount command. Hello, When I ran ltp test case:tlocklfs, I met a old problem with the kernel:2. If the device is still busy after that, check file access with lsof as mentioned above. The option has to be used with canonical path to the mount point. " I cannot identify what process supposedlly is using the cd and thus creating this condition. DISCLAIMER: Please note that blog owner takes no responsibility of any kind for any type of data loss or damage by trying any of the command/method mentioned in this blog. d/nscd stop NSCD caches name service…. Re: Shutdown problem unmounting NFS shares An update, I tried shutting down while the NFS shares were mounted yesterday and there was no problem. So it is just the umount of stale/dead shares that's the issue. This selection is often used to unmount an unreachable NFS system. service nfs stop umount /export service gfs stop Device or resource busy [***@nfs-6 ~]# cman_tool services type level name id state fence 0 default 00010003 none. umount announces to the system that the removable file structure previously mounted on the specified directory is to be removed. Anyone know of a reliable way to force a umount of a NFS filesystem on Solaris 2. 0 (fixed link script) 858941 486 7180 866607 d392f busybox-1. The domain mfs-co. umount unmounts a currently mounted file system, which may be specified either as a mount_point or as special, the device on which the file system resides. I understand that this helps avoid data lost by disallowing unmouting a filesystem when it is being used. There are many reasons for this (such as program accessing partition or open file) , but the most important one is to prevent data loss. 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. The umount Command The umount command is used to manually unmount filesystems on Linux and other Unix-like operating systems. umount /xxx umount. That means that when I turn on the rack again, the shares will not be available until I manually restart the nfs-kernel-server again. umount 명령은 공유 디렉터리 밖에서 실행해야 합니다. ) MNT_DETACH (since Linux 2. umount() requests that a previously mounted file system contained on the block special device identified by name be unmounted. Frank Benkstein suggested using 'fuser -v -m /scratch/cdf' and that returned nothing as well. -a Unmount all file systems -r Try to remount devices as read-only if mount is busy -f Force filesystem umount (i. - user83293 Sep 24 '13 at 6:50. Be patient and wait for your client system to respond. LOOP DEVICE. Otherwise, it returns a value of -1 and sets errno to indicate the error. It's strongly recommended to use absolute paths without symlinks to avoid unwanted readlink and stat syscalls on unreachable NFS in umount. umount: device is busy. The typical case is that the file has been removed. 3 NFS部署与安装. License Issues Getting License Details Via Soap - Consumed Licenses. (Requires kernel 2. You need to replace the /mnt directory with a directory specific to your environment. Determine which shell on the workstation is currently located below the mount point, and change that directory. device to mount The device to be mounted. 卸载nfs挂载的方法: #umount /mnt/nfs 可能会出现device is busy的问题。 解决方法: 1. mounted Once done you can unmount the device # umount (mount point) Follow the below links for more tut orials. remote filesystem When the connection to a remote resource, mounted using sshfs, is broken you can not access the directory using command like ls. If you received the "device busy" message while attempting to unmount a directory, a user or process is currently using the directory. Above output tells that user vivek has a vi process running that is using /dev/sda1. When I put an umount -f to the rc. All you have to do is stop vi process and run umount again. Option 1: Force unmount ∞ There are options of umount to detach a busy device immediately even if the device is busy. Temporarily losing network connection to the NFS Server some times causes the NFS client mount to go stale. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. In this case have two choice. nfs: /mnt/test: device is busy # umount -f /mnt/test umount2: Device or resource busy umount. )-l - Lazy unmount. umount device is busy 站內文章. fuser 可以显示出当前哪个程序在使用磁盘上的某个文件、挂载点、甚至网络端口,并给出程序进程的详细信息。. Try to do force mount mount -f /nfsdemo/nfs2 -- Completes but does not resolve the issue 5. You'll get a notification as soon as your website is down, a monthly uptime report, a warning a few days before your SSL certificate expires and much more!. I use lazy umount in cases where it was obviously stuck for various reasons (such as nfs server down), also when I need to see the original content of the directory that was mounted over by the mount. Meanwhile, you can also have a look at ps command output that which process is presently using the mountpoint as shown below:. 推荐:Linux umount 报 device is busy 的处理方法 [ 一. umount /mnt/dir umount: /mnt/dir: device is busy There are many reasons why the device is busy. BLUE SKY STUDIOS are looking for Linux Administrator to maintain and support the. umount /mnt/nas[/font] This script basically cleans up the NFS mount from which I'm sharing an encrypted filesystem. A file system is specified by giving the directory where it. 116 or later. So I tried to umount the share. )-l - Lazy unmount. 公司开发、测试、准生产数据库的备份都是nfs挂载的nas盘和备份主机的本地磁盘,最近nas的权限做了调整后,导致nfs挂载点掉. It seems not comfortable like this to me, but I read it is normal. This solution works in RHEL4,RHEL5, Novell Linux , Fedora,CentOS and ubuntu Tags:umount nfs, force umount,umount fails,mount busy. I want to find that out so that I can kill it. umount がうまくいきません。 【現象】 umount を実行すると、"device is busy" または umount: /mnt/cdrom: デバイスを使用中です と表示されます。 【原因】 一般的に問題になるのは、mount したディレクトリを何らかのプロセス(プログラム)が 使っている場合です。. (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. If you received the "device busy" message while attempting to mount a directory, try to access the mounted directory. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. 3 NFS部署与安装. # umount /dev/dsk/c0t2d0s7 umount: /dev/dsk/c0t2d0s7: device is busy Well, the fuser command to the rescue. First, flush the cache on all servers for the license information. Linux Unmount when a device is busy unmount command will fail to detach the file system If it is in use. then after the PVEhost will hang on unmount NFS on his shutdownprocess, for ever. In these cases, you can enter umount -f to force the file system to unmount. Only for NFS mounts. com\\D$' end Stop a service, do stuff, and then restart it The following example shows how to use the execute , service , and mount resources together to ensure that a node running on Amazon EC2 is running MySQL. devices mounted by udisk). Well I’m using Linux more than 15 years and I know “umount -f” is the only. The mount point becomes the root directory of the device's file system. Here you can use umount -f, but you risk data loss if you do so. Ars Centurion umount -f doesn't do the job, it just reports the usual device or resource busy. ) MNT_DETACH (since Linux 2. mounted Once done you can unmount the device # umount (mount point) Follow the below links for more tut orials. #share : will show the local resource (mount points) available for NFS mounting Or #showmount –e < will list all shared file systems. 查找进程:#ps –ef|grep 进程号。 3. Filed Under: Troubleshooting Errors Tagged With: force umount nfs redhat, how to unmount dead nfs forcefully, how to unmount nfs share in linux, how to unmount NFS when server is gone, umount nfs not mounted, umount. 上午到web server 上查看挂载的NFS目录,竟然发现下面的错误。 device is busy umount: /mnt/netstorage: device is busy [[email protected] ~]# umount -f. nfs: /dump: device is busy. I'm trying to unmount a file system, but umount says the device is busy. There might be times when the system (kernel) sees the file system as busy, no matter what you try to do. com] Mon, 19 Apr 2010 01:05:38 +0700. By default, the output will include all file systems including the virtual ones such as cgroup, sysfs, and others. Meanwhile, you can also have a look at ps command output that which process is presently using the mountpoint as shown below:. I'm trying to unmount a file system, but umount says the device is busy. 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. The Linux kernel contains the guest driver for the. umount2: Device or. Like tapes use backup/restore, tar, cpio, dd; They will utterly destroys any formatting of the drive like FAT32, so you can't access it from. On est forcément tombé sur ça un jour où l'autre. I am told the 0. /etc/mtab (SunOS) or /etc/mnttab (Solaris) on a client lists filesystems which are currently mounted onto that client. You can see that the device is busy, so check out who is using it. #umount /mnt/nfs 可能会出现device is busy的问题。 解决方法: 1. Therefore, my eyes have turned towards the Seagate SAVVIO 15k. To this day what annoys me is that they haven't changed the behavior of unmount to automatically pull up the PID of what's locking the device when it trips a device is busy message. There are many reasons for this (such as program accessing partition or open file) , but the most important one is to prevent data loss. , a program with an open file or a user's current working directory in the mounted filesystem). EMFILE (In case no block device is required:) Table of dummy devices is full. umount: /mnt: device is busy. To unmount the NFS mounted directory, remove the previous line from the /etc/fstab file and type: # umount /mnt. It can be used to remove entries from /etc/mtab that were unmounted earlier with the -n option. A fuser -c /myfs tells me that nothing on this fs is in use. 怎麼解決 umount device busy 的問題,使用 fuser Posted on 2007 年 11 月 23 遇到 nfs 無法被 umount的問題. If you unmount an NFS or a virtual datastore from all hosts, the datastore disappears from the inventory. All you have to do is stop vi process and run umount again. nfs share is removed, dataset removal is attempted but because some stale nfs handle is laying around it fails with 'device busy' If #4 doesn't happen then all is well, but I'm trying to make the thing as bullet-proof as possible and have hit this exact scenario a handful of times already with relatively short period of semi-production use. ☞ 지연된 언마운트(lazy umount)는 디바이스가 사용되지 않을 때까지 대기한 후에. You might try adding a video or a picture or two to get people excited about everything’ve written. The mount and umount commands modify this file. Determine which shell on the workstation is currently located below the mount point, and change that directory. For example: umount. nfs: device is busy解决办法 2015-01-20 10:52 本站整理 浏览(16) 原创作品,允许转载,转载时请务必以超链接形式标明文章 原始出处 、作者信息和本声明。. I've tried to force an unmount, but it doesn't seem to work: $ umount -f /mnt/data $ umount2: Device or resource busy $ umount: /mnt/. umount /dev/dsk/c1t2d3s4 umount /mnt. devices mounted by udisk). For example, a local ufs file system /dev/dsk/c#t#d#s#, or a pseudo file system /proc. The nfs daemon had it tied up (we're not running samba). fuse -t fuse. The exact same shutdown/reboot issue happens when network connectivity to NFS server is lost and shutdown/reboot is issued. 116 added the umount2() system call, which, like umount(), unmounts a target, but allows additional flags controlling the behavior of the operation: MNT_FORCE (since Linux 2. which indicates that an executing program is using a file on the filesystem to be unmounted. This procedure uses Solaris 10. Force to umount a file system. NM will only bring down interfaces for 3 reasons: 1) something told it to over D-Bus 2) The connection is no longer valid (no carrier, lost association to AP, supplicant crashed) 3) When it quits or is told to quit. Standard attempts to umount fails with the EBUSY message: umount: /mnt/nfs: device is busy when using any of the following commands: # mount -t nfs -o remount /mnt/nfs # umount /mnt/nfs # umount -f /mnt/nfs # umount -l /mnt/nfs # umount -lf /mnt/nfs. If this doesn't work for you, then you can go for lazy unmount. I hope these Linux lsof command examples have been helpful. x) in a RAC setup, I still can't unmount the filesystem where the GI binaries are located. % umount /cdrom umount: /dev/hdd: device is busy % fuser -v /cdrom USER PID ACCESS COMMAND /mnt/cdrom tranter 133. 2 umount 하는 방법 (디스크 연결 해제) # umount [디바이스명] or [디렉터리명] 예) # umount /dev/sdb1 또는 # umount /backup. However, as this is a test environment we have users logged on, so when Puppet attempts to unmount the test directories, it fails with "umount: /test/dir: device is busy" if I fuser against the /test/dir directory and kill the PID all is OK. For example, the following output shows the creation of a new directory, which is used as a mount point for the "/dev/sdb3" ext4 volume. > On Destination server:. d/nscd stop NSCD caches name service…. The use of the -f flag attempts to forcibly unmount the file system. /sbin/umount. umount: /share/MD0_DATA: device is busy [/] # lsof | grep MD0_ROOT Apparently, I am unable to unmount /dev/md0 to perform e2fsck -f -v -C 0 /dev/md0 because one or more processes is keeping file handles within the mount point hierarchy. In this case the device is initialized with "autoclear" flag (see losetup(8) output for more details), otherwise it's necessary to use the option --detach-loop or call losetup -d. 最近几次发现mount了一个网络共享磁盘后, 就无法umount, 老是提示:device is busy, 服务又不能停止的。 无意发现可以用"umount -l"解决! 2. El WD no és molt popular, tot i que jo crec que és un aparell molt interessant perquè és molt més ràpid que els anteriors (4MBytes/s, vs, 11Mbytes/s vs. 首先查找谁在占用:#fuser /mnt/nfs 得到进程号。. stop the NFS server 2. umount device is busy 站內文章. Temporarily losing network connection to the NFS Server some times causes the NFS client mount to go stale. This procedure uses Solaris 10. (Only for NFS mounts. b) Device Drivers -> Network device support: set Ethernet (10000 Mbit) (Gigabit Eternet card has already been configured). In this case the device is initialized with "autoclear" flag (see los- etup(8) output for more details), otherwise it's necessary to use the option --detach-loop or call losetup -d. Umount all Veritas volumes in the diskgroup involved with NFS issue. NFSマウントを解除しようとしたときに下記のようなエラーが起きた。 # umount /mnt/test umount. 这篇文章主要介绍CentOS 6. nfs: device is busy解决办法的更多相关文章. In this case the device is initialized with "autoclear" flag (see losetup(8) output for more details), otherwise it's necessary to use the option --detach-loop or call losetup -d. This is often caused by invoking umount while your current working directory is in the filesystem, or by someone else working in the filesystem. 2 umount 하는 방법 (디스크 연결 해제) # umount [디바이스명] or [디렉터리명] 예) # umount /dev/sdb1 또는 # umount /backup. - introduce umount. 116 or later. You can easily supply the name of the mountpoint for this device as an argument to the lsof command, as shown in Listing 5. If you have a stale NFS mount hanging on your system it can cause various programs and utilities to fail. I was actually able to umount it, I used: umount -f -vvv and it got unmounted somehow I am not sure if it. umount man page. 0 Debugging NFS General NFS Debugging Note When NFS is not working or working intermittently, it can be very difficult to track down what exactly is causing the problem. So far, the performance you get from doing 4k writes to a raw device or partition is the same performance you get over NFS in the end. 上午到web server 上查看挂载的NFS目录,竟然发现下面的错误。 device is busy umount: /mnt/netstorage: device is busy [[email protected] ~]# umount -f. (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. Various scripts install and configure the VM prior to it's first run. umount: /u01: device is busy: even when Grid Infrastructure is down (12c) Sometimes back, I noticed that even after shutting down GI (12. (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. Examples: Mount a QNX 4 filesystem on a hard drive as /mnt/fs:. NFS마운트 해제시 "device is busy"문구와 함께 마운트 해제가 되지 않는 경우가 있습니다. If you unmount an NFS or a virtual datastore from all hosts, the datastore disappears from the inventory. I want to find that out so that I can kill it. What is the command to figure out what the obstructing process is. 03 - package halt fails: umount: device is busy. umount man page. com] Mon, 19 Apr 2010 01:05:38 +0700. I suggest to use an directory on the usb-disk ( like /backup/pve-backup ) - so the backup fails if your disk isn't mounted instead of filling your root-partition (because of writing to /backup) and fails than. umount で device is busy になったときって、アンマウント対象ファイルシステムを使っているプロセスがあることが多いですよね。. 2010 (4,878 zobrazení) PikoDrak Komentuj Přejdi na komentáře Dnes jsem řešil problém s odmapováním NFS share po výpadku switche – na share se nešlo dostat (systém doslova hnil při pokusu přistupovat na daný share). For the case of unreachable NFS there is -f (force). , method for organizing data). The typical case is that the file has been removed. nfs mount: mount: string: Device busy Cause. fuse-t fuse. LOOP DEVICE. For example: umount. [SOLVED] NFSv4: "Device is busy" This is a weird issue, because it happened just today, having been using nfs for years, and because it is triggered by trying to access the "root" filesystem on the server (the one with fsid=0). Clustering NFS Server with DRBD and Heartbeat As you probably know RHEL 6 / CentOS 6 does not have DRBD on any of the yum repository. By default, the output will include all file systems including the virtual ones such as cgroup, sysfs, and others. Only for NFS mounts. It doesn't usually indicate that you have specified the command line incorrectly; rather that there is something wrong with the disk partition, the filesystem. the support Win 98, does it umount /mnt/cdrom device is busy unmounting which is an ASUS A7V8X-X. nfs: /mnt/test: device is busy # umount -f /mnt/test umount2: Device or resource busy umount. A file system is specified by giving the directory where it. 6? I already know about preceeding the umount with a 'fuser -k ', but this method is not guaranteed to work (Sun's own FAQ which discusses this issue admits that it dosen't always works). umount: device is busy. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. NM will only bring down interfaces for 3 reasons: 1) something told it to over D-Bus 2) The connection is no longer valid (no carrier, lost association to AP, supplicant crashed) 3) When it quits or is told to quit. The umount command will automatically detach loop device previously initialized by mount(8) command independently of /etc/mtab. 2、有时因为nfs主机或网络故障,会出现常规卸载提示device is busy的提示,此时强制卸载命令如下: umount -f /www/code. Essentially the same semantec as cp command. 116 added the umount2 () system call, which, like umount (), unmounts a target, but allows additional flags controlling the behavior of the operation:. then after the PVEhost will hang on unmount NFS on his shutdownprocess, for ever. Some days ago I change the IP address of a lab machine that was exporting a /depot filesystem. The current working directory is never changed back to "/". umount() requests that a previously mounted file system contained on the block special device identified by name be unmounted. nfs /mnt : device is busyが大半です。この場合、画面上. How to umount when the device is busy It happens all the time doesn't it? You need to unmount a CD or you want to pack away the external drive but when you try to umount it you get the dreaded "device is busy" message. As part of an automated VM creation system a block device is mounted to a temporary folder ( /tmp/whatever ). If your UNIX or Linux clients cannot unmount an NFS mount from a filer One of the following errors occur: nfs umount:variable: is busy umount: warning: /variable not in mnttab unmounting NFS filesystems: Cannot MOUNTPROG RPC: RPC: Program not registered umount: Permission denied umount: Device busy Level 1 Options: /etc/init. Note: if you get a message like "/mnt: device is busy", to check that you are not in the mounted directory and no process is using it, type: # fuser /mnt CIFS network file system. I tried to umount the USB drive but it is busy ? [email protected] ~ $ sudo umount /home/pi/my_usb umount: /home/pi/my_usb: device is busy. #umount /mnt/nfs 可能会出现device is busy的问题。 解决方法: 1. Sun 25 May 2014 11:09:59 PM BRT Drive failed Drive failed in location B Sun 25 May 2014 11:10:01 PM BRT System restart The system has restarted. 32Mbytes/s) a un preu contingut. nfs: /mnt/nas: device is busy umount. You can also use: umount -lfr /mnt/sambamountofboxthatsshutdown. rougeref’s diary. 0, which was introduced with vSphere 6. If the -o option is specified, the umount specific module is always executed. How to Mount an ISO Image. type helpers. Or, the block device Specialfile is located on a filesystem mounted with the MS_NODEV option. 6? I already know about preceeding the umount with a 'fuser -k ', but this method is not guaranteed to work (Sun's own FAQ which discusses this issue admits that it dosen't always works). Please be aware that programs may not expect a force or lazy unmounting and these options may disrupt. The domain mfs-co. Various scripts install and configure the VM prior to it's first run. Or, the block device Specialfile is located on a filesystem mounted with the MS_NODEV option. Mulyadi Santosa [mulyadi. Unmount filesystem when device is busy September 13, 2010 AIX HP-UX Linux Solutions Tips When you unmount a filesystem, you may get "device is busy error" sometimes. service nfs stop umount /export service gfs stop Device or resource busy [***@nfs-6 ~]# cman_tool services type level name id state fence 0 default 00010003 none. 怎麼解決 umount device busy 的問題,使用 fuser; 固定 NFS port numbers; NFS建置檔案伺服器; virtualbox安裝在linux下而windows虛擬機器怎麼掛載usb; 如何在非LVM環境掛載LVM磁區的硬碟; 最近遇到 VirtualBox 上的子機使用 NFS 時很慢. How to forcefully unmount a Linux / AIX /Solaris disk partition? Linux / UNIX will not allow you to unmount a device that is busy. 0 kernel was updated to 4. A filesystem in this context is a hierarchy of directories that is located on a single partition (logically independent section of a hard disk drive) or other device, such as a CDROM, DVD, floppy disk or USB key drive, and has a single filesystem type (i. EMFILE (In case no block device is required:) Table of dummy devices is full. It means that the target namespace does not have to contain any libraries or another requirements necessary to execute umount(2) command. #share : will show the local resource (mount points) available for NFS mounting Or #showmount –e < will list all shared file systems. sudo umount /dev/loop0 I will get the message. [[email protected] ~]$ sudo umount /mnt/share umount: /mnt/share: device is busy. Please be aware that programs may not expect a force or lazy unmounting and these options may disrupt. The umount fails because NFS services have not been shut down. Working directory or file open of a running process.