Linux target is busy. > fusermount -u example. you will get the pid (s) of running process. mountとumountのコマンド こんな感じで、調査用の読み取り専用でマウントしました。. lsof can be used to find out which process is keeping the device busy. then remove /mnt/var/run. ) . Jun 1, 2019 · Hey, how long have you been using Linux? Please see the poll (and vote) at this link. Or use fuser, part of the psmisc package. Dec 26, 2023 · Here are some tips for troubleshooting the umount: target is busy error: Use the `lsof` command to list all of the open files on the filesystem. However, be cautious as this may lead to data loss or corruption if the target is indeed in use. Goal. the device is found by lsof(8) or fuser(1)) Since earlier questions were just solved by running the above command,I am posting a new question about this find out any remedies if possible. Try lvreduce or lvresize instead, but be very careful not to reduce too much. Feb 20, 2021 · Then try opening the file. sudo lsof /Path/to/target. Sep 15, 2018 · 2. /home/some-other-mount. ”。. It would be like the coyote cutting a circle around himself with a handsaw. umount /path/to/mount. 需要将当前使用数据盘的进程杀掉,才能卸载 Dec 8, 2020 · Sometimes when we want to "umount" a filesystem, we get a "device busy" message. (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: [s1: ~]# fuser /root/backup Sửa lỗi “Umount Target is Busy” trong Linux. 8 Reaches End of Life, Users Should Upgrade to Linux Kernel 6. the device is found by lsof(8) or fuser(1)) and if I add the force option -f it gives the same result: [root@cn17663-ens4 mnt]# umount /mnt/lustre -f. mount --make-rslave dev/. umount target is busy; umount linux挂载的磁盘时提示target is busy Apr 26, 2018 · 리눅스 언마운트 (umount) target is busy 발생할 경우. To add to BruceCran's comment above, the cause for my manifestation of this problem just now was a stale loopback mount. The only way to unmount it is to shut the operating system down. Technique 4. -l – Lazy unmount. 0. If that works, a more permanent solution should be to create a /etc/wsl. You should find out which process is keeping the mountpoint busy. -l, --lazy. 9; FOSS Weekly #24. $ mount. It will show how many processes holding/using the filesystem. Use /proc/<pid>/fd. Feb 16, 2021 · umount target is busy. Một lỗi không phổ biến khi sử dụng lệnh umount là 'target is busy'. ”。 问题 原因: 该报错通常是由于待卸载磁盘正在使用,导致无法直接卸载。 Dec 31, 2007 · What happens basically, is that Linux will not allow you to unmount a device that is busy. を実行 Nov 21, 2023 · Linux Kernel 6. Feb 24, 2019 · This account should boot up without mounting the datasets you modified in step 1 and therefore, deny those datasets to any daemons/programs. 6 Open-Source BitTorrent Client Released with Various Fixes Jan 8, 2024 · Linux fuser command to forcefully unmount a disk partition. umount -l /path/to/mount. Jan 15, 2021 · Linux. (Requires kernel 2. By default, only repairs that do not alter integrity of Mar 12, 2023 · 2. However, after troubleshooting, it is found that no process is occupied. log" command returns nothing already. umount: /backup: target is busy And following commands does not work and same reason (busy) returns to me: fuser -cuk /backup fuser -k -9 /backup umount -f /backup mount -o remount /backup; umount /backup and. For example: Cause 1: You're attempting to run the umount command from within the mountpoint directory. A mounted filesystem can be accessed by any process running on the Linux operating system. Oct 25, 2023 · Click to get started! In this Document. The lsof command, without options, doesn't print the device on which a file is located, therefore your grepping for nvme returns nothing. Without the first command, you risk unmounting all the sub-mounts on the source, due to mount propagation. umount: /tmp: device is busy. Kill any processes locking the stale mount. Oct 20, 2023 · Today I saw target is busy at least in one terminal window where I run script with chroot. Check For Loop-Mounted Devices. To fix umount target is busy error, a methodical way is the Lazy unmount. May 3, 2017 · Background: I am exploring how to copy an ordinary LVM-on-LUKS Debian 9 ("Stretch") installation from a thumb drive (the "source drive") onto a ZFS-formatted drive (the "target drive") in order to Aug 17, 2021 · umount: /home: target is busy. 26. Instead, boot from a [live-cd] or [usb created with the startup disk utility], and try from there. Apr 21, 2023 · Unmout target by killing the process itself (recommended) Another way to fix the issue is by killing the process. Mar 21, 2023 · Unmounting ( umount) fails with a message: device is busy. Lazy Unmount. repair=yes to force repair. Read man fuser. g. This can be done via two method: 1) Interactive by booting the system from SLES DVD and select " Rescue Mode ". Mar 2, 2016 · On using the command. To visualize why this happens, let‘s consider what goes on when you mount a USB drive: Mounting grafts the filesystem into your directory tree, assigning it a mount point. 17. On Centos systems it's called mlabel. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. umount -R m. # umount -lf. option for network filesystem or local filesystem with submounts. Try to force umount again after the processes as been killed. Solution 1: Move to a directory outside the file system mount point, and retry the umount command. use the 'sync' command to flush any cached active writes to the device. Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 If you can't unmount because the filesystem is busy, is your ssh/terminal session cd'd into the mount directory, therefore making the filesystem busy? For me, the solution was to cd into my home, then sudo umount worked flawlessly. Use the `ps` command to list all of the processes that are running on the system. You might have a process cd 'd to there, or reading/writing there. we need to check is any process holding or using the filesystem. The “umount target is busy” issue occurs due to the device being in use by various processes at the time of unmounting. 4) sshfs -o allow_root joeuser@example. Dec 17, 2020 · In order to find out, what was causing the failing unmounting of /usr/local, I switched to runlevel 1. Once you kill these processes, you'll be able to unmount /home. If the remounting can succeed, it avoids the problems of disrupting or killing processes. ) I tried some different options with the command lsof and fuser , but it didn't work so far. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Jan 22, 2021 · Identify which processes tied to the mount need to be killed by using lsof and fuser: # lsof | grep /mnt/nfs. lsof | grep '<mountpoint of /dev/sda1>' (or whatever the mounted device is) pkill target_process (kills busy proc. by name | kill PID | killall target_process) umount /dev/sda1 (or whatever the mounted device is) Jun 26, 2021 · ******************************************************************Any Questions regarding this video , you can ask in the comment section. lsof /var/lib/snapd/snap/*. sudo umount /tmp. If that's not the case, you probably have a reboot in your near future. …. The message means that the filesystem on the device is in use. But take care! mount --make-rslave m. You will still have to make sure no one is accessing it (see next paragraph) and unmount it manually. -l Lazy unmount. It will prevent the second command from unmounting subdirectories in the original /dev directory. This has nothing to do with being mounted. From various search results it appears that /modules/ are simply read in to memory. 该报错通常是由于待卸载磁盘正在使用,导致无法直接卸载。. How to unmount a filesystem in Linux without investigating why is it busy? I want to do it in one command. – Steve Bonds. . Jun 25, 2012 · You cannot unmount the partition where the system you are running is. One common non-process reason for a mount that won't move is another filesystem mounted on top, e. The root filesystem will always be in use while the operating system is running. -f, --force Force an unmount (in case of an unreachable NFS system). but unmounting it fails. Tìm hiểu những gì bạn có thể làm để thoát khỏi lỗi này. Option 1: Force unmount. To know what is the full command line: ps uww <PID>. lsof: WARNING: can't stat() Jan 4, 2024 · In this guide, we learn how to fix umount target is busy in Linux. I have read that it is possible to 'umount' a disk that is otherwise busy by using the 'lazy' option. Dec 19, 2023 · Along the way, we tackled common issues users may encounter when using ‘umount’, such as the ‘target is busy’ error, and provided solutions and workarounds for each. next, create a link /mnt/var/run -> /mnt/run. Some tasks may require exclusive access to shared resources, for example running fsck Feb 23, 2020 · USBをマウント. A system reboot would be expected in near future if you’re going to use this. Another command that can serve in a pinch is fuser, which only lists PIDs of processes with open files on the device: Apr 21, 2020 · 8. 누군가 마운트된 경로를 사용 중일 때 target is busy라고 나오게 되는데, 해당 프로세스를 강제로 kill한 뒤 언마운트하면 됩니다. cd ~ umount /path/to/my/share I would post this as a comment, but I have insufficient reputation. sudo mount /dev/sda1 /mnt Dec 2, 2019 · Assume that the path of the directory being mounted is /media/transang/SangWDPP. 1 library is used by several system tools. 2 under /usr/local on purpose. That's why it show device is busy or filesystem is in use. NFS export: lsof won't detect that a tree is exported by a kernel NFS server. AWSのEC2のAmazonLinuxのサーバで、ディスクのumountができなかったときの解決方法をメモします。. Go to the linux line and add the following at the end: fsck. 问题原因 :. The first command is required for safety. Use Lazy umount (8) Use Forced Unmount. ) How to unmount the sshfs share? UPDATES: Sep 16, 2023 · Gain insights into the “umount target is busy” error, its , and the it has on system operations. 22: Ultramarine Linux, Open Source LLMs, Decibels Music Player and More; The Ultimate Guide to Latest Linux Distros: Downloads, Features & More; Transmission 4. The lsof command displays the files that are open on a certain filesystem: The mount point of the filesystem could be for example : /usr . My question: What are the steps to check why a directory couldn't be unmounted. umount: /: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). mount devices: you can't unmount /foo if /foo/bar is a mounted block device or loop-mounted regular file, or if it is the source of a Linux bind mount. 9. 1. Don't forget to subscribe to Linux Tips. 原因. /example. edits. Toshiba C55D-B5201 BIOS set to UEFI mode and up to date @ v1. To remove all the processes attached to the device (that are not in use) slowly, you can use this solution. Jun 28, 2021 · 在Linux系统下卸载设备时,经常会遇到“Device is busy”的提示,报错的原因通常是由于待卸载磁盘正在 韩小早儿 阅读 689 评论 0 赞 1 Linux学习笔记 Jul 14, 2021 · If you wish to partition the drive you are using, you must boot from a bootable media like the Live Zorin installer. zfs set canmount=on dataset2. You can't unmount filesystems that are in use. 1. 卸载分区目录,target is busy解决方案; umount: /opt/database: device is busy. デバイスへのプロセスが停止していることを確認出来たら下記コマンドでアンマウントします.. I have one partition rn the one for linux. From Wikipedia: Single-user mode is a mode in which a multiuser computer operating system boots into a single superuser. 「umount target is busy」の解決方法. Since the datasets are now not busy, you can now destroy them and/or their snapshots. lsof |grep /backup | grep -v "backup. At this time, a command needs to be used: fuser (use file or file structure to identify the process) fuser -m -v /dev/vdb. Ah, I did not think about of that possibility. Jun 1, 2019 · For some reason trying to reformat this Kingston thumb drive isn't working. sudo kill -9 [PID] Nov 1, 2020 · The “-o remount” option will make Linux try to remount the filesystem. umount: /mnt/lustre: target is busy. There are many reasons for this, but the most important one is to prevent data loss. umount /media/hdd2 # Device is busy! automount[20340]: do_umount_autofs_direct: ask umount returned busy for /mnt/point Environment. Sometimes, when you run the umount command you may receive the “ target is busy ” or “ device is busy ” errors indicating that there is some process that is using the May 11, 2014 · You can see which processes are still using your old home directory (or anything else on the home filesystem) by running fuser /home or lsof /home. Linux コマンド Jul 13, 2020 · Linux下挂载后的分区或者磁盘某些时候需要umount的时候出现类似“umount: /mnt: target is busy. Suppose you have /dev/sda1 mounted on /mnt directory then you can use fuser command as follows: WARNING! Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have That way the /home partition is not needed and you will be able to unmount it. Linux/Unix环境中如何卸载一个处于繁忙状态的设备: /xxx device is busy. Aug 20, 2018 · I was dd'ing a Linux iso from the partition /dev/sdb4 to a USB drive. ”等字样,或者“umount: /xxx: device is busy. You then end them (normal close, or kill as shutdown would do) and try to unmount again sudo fusermount -u /mnt/remote) Dec 24, 2013 · 0. Examine The Kernel Data Structures. You can use fuser -k /home to kill them all (carefully check what they are before doing this!). This forces the check. run below command to find out the processes using by a filesystem: fuser -cu /local/mnt/. Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 I mounted a remote file system using sshfs (version 2. then mounting the root disk to /mnt. Learn how to ask a good support question (UPDATED!) I have decided to offer inexpensive Linux-based web hosting. Entering Un*x like GNU/Linux in Single User Mode. ext4: Device or resource busy while trying to open /dev/sda5 Filesystem mounted or opened exclusively by another program? Jul 30, 2023 · 2. デバイスのところに表示されたディレクトリを確認し、確認したディレクトリのパスをmount以下に書き込み、マウント先のディレクトリを指定しmountを実行. If you want to get rid of that you may just Then, I try to unmount the directory, but on the first try it doesn't work because the device is busy. The kill cmd terminated it however; the device is still busy. Is there a way to make a partition? Thanks. Linux umount umount /mnt/dir umount: /mnt/dir: device is busy There are many reasons why the device is busy. umount -R dev/. socket sudo systemctl reset-failed Now I You can use umount -f -l /mnt/myfolder , and that will fix the problem. Special kernel patches or configuration is allowed. 사용하고 있는 Jun 25, 2021 · Detach the filesystem from the file hierarchy now, and clean. At this point the system needs to be rebooted in order to remount our root partition with a new size. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8). mode=force. target is busy. Apr 3, 2023 · To achieve this, run: fuser -kmv /Path/ to /target. Oct 27, 2020 · 在 Linux 命令行中卸载磁盘并不复杂,只需要执行 umount 命令即可:复制但有时候可能会遇到报错信息,比如:umount: target is busy那么该怎样解决这个问题呢? Linux での「Umount Target is Busy」エラーの修正. 4 1TB HDD (1GB /boot, 100GB /root, 5GB Swap, Remaining space for /home ) Oct 2, 2021 · 错误提示 root@debian:~# umount /dev/vdb1 umount: /mnt: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). Nov 28, 2020 · Device or resource busy The kernel still uses the old table. An umount command is used to unmount a device/partition by specifying the path to the directory where it has been mounted. the device is found by lsof(8) or fuser(1)) Nov 1, 2019 · 11. May 2, 2022 · Umount: Force – Target | Device is Busy. In order to unmount a filesystem, you must unmount its submounts first (and the same for their submounts, recursively). Try umount -l /mnt/c . I'm attempting to run fsck -p /dev/sda5 to repair errors on an ext4 partition, however the command outputs. I think this explains, why it is not possible to unmount /usr/local, when the custom liblz4. Finally, a useful tool is lsof /dev/sda3 which will list the processes currently accessing that partition. I'd already checked the output of fuser -vm <mountpoint>/lsof +D <mountpoint>, mount and cat /proc/mounts, checked whether some old nfs-kernel-server was running, turned off quotas, attempted (but failed) a umount -f <mountpoint> and all but resigned myself to abandoning 924 Aug 24, 2018 · You used rbind to mount a filesystem and submounts. We also took a step back to understand the fundamentals of file systems, and the concepts of mounting and unmounting, which underlie the ‘umount’ command. Conclusion. 16. [Custom install script error] umount /mnt/sys: target is busy Hello all, I'm rather new to arch and after installing arch by hand several times as I tinker and break things, I decided to make a script to do a basic install that only adds the things I understand at the moment. Can not unmount a drive it says target is busy? double check that all programs running are not accessing the drive make sure any shells are 'cd' out of the mountpoint. umount コマンドの使用中に発生する、それほど珍しいエラーではありませんが、「ターゲットがビジーです」というエラーがあります。. First, run the following command to find the PID of the process that is creating the problems. [linux]-挂载硬盘后umoun卸载失败,提示umount: /mnt/usb: target is busy. Nov 4, 2020 · I wanted to make 2 partitions, one for linux, one for windows. This makes sure to unmount dev/pts, for example, before trying to Jun 8, 2017 · When I umount Lustre FS it displays: [root@cn17663-ens4 mnt]# umount /mnt/lustre. Now, we know that there is a zsh terminal which may cd ing at the being mounted directory. Feb 1, 2016 · 1. log files. Replace /path/to/target with the actual path of the target you want to unmount. lsof command above identifies the PID of the processes associated with the /mnt/nfs share. cfg sudo systemctl restart systemd-coredump. Tất cả những gì bạn phải làm là sử Feb 1, 2021 · Ok I was able to fix this by doing the following: sudo nano /etc/mkinitcpio. up all references to this filesystem as soon as it is not busy anymore. Then you can decide if you want to kill the process to umount the dir. You can always use the df command or mount command to list mounted file systems under Linux and Unix. It seems to get restarted every time you look at the drive. 17:23. Whenever im in the windows installation i can't make a partition out of the linux drive cuz it says that its an unknown type. The command displays all the processes using the filesystem. When such a filesystem or a directory which is being accessed by some process is unmounted, the system may issue the target as busy (“device is busy”). What is unmount target busy. Jul 6, 2019 · Then select a menu entry (you can go to advanced and recovery to follow things better) and push e to edit the boot entry for this boot only. umount: /home/joeuser/example: device is busy. According to the man page it does the following. options = "metadata,uid=1000,gid=1000". Mar 17, 2024 · Several factors can lead to the “Unmount target is busy” error: 1. (grep -v is because ignore backup. This will help you to identify any processes that are still accessing the filesystem. It is mainly used for maintenance of multi-user environments such as network servers. conf with the following: [automount] enabled = true. It unmounts the mount point from the Linux filesystem. いろいろ調べた結果、たどり着いた解決法がこちら。. The problem can be resolved in 3 ways. I ran lsof and this is the result::~$ sudo lsof |grep sdb3 lsof: WARNING Apr 28, 2019 · user@azimuth:~$ sudo umount /home/user/pi [sudo] password for user: umount: /home/user/pi: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1). For the future, I think I better cancel further unmounts/deletions if one of umounts fails. You need to shrink ext4 offline anyhow. Disk Utility will show which partition (s) are busy. Feb 15, 2021 · lvextend can only increase the size. I get. Here’s the command: umount -l /path/to/target. cd /test_dir. Sometimes there are processes running which have open locks on it, sometimes there are other directories mounted on top of /mnt/dir. Use sudo lsof +D /dev/sdX (where " sdX " is your disk. Then use Disk Utility to delete the offending partition. Terminate the processes using the ` kill ` command: kill -9 PID. No objections!". Jan 22, 2021 · 问题描述: Linux下挂载后的分区或者磁盘某些时候需要umount的时候出现类似“umount: /mnt: target is busy. For example: $ df -hT. conf change: HOOKS="base udev autodetect modconf block keyboard keymap filesystems fsck" to: HOOKS="base udev autodetect modconf block keyboard keymap filesystems fsck shutdown" sudo mkinitcpio -P sudo grub-mkconfig -o /boot/grub/grub. There are options of umount to detach a busy device immediately even if the device is busy. :)**************** Apr 26, 2014 · It is also /doubtful/ (but I don't know how to check) that kernel modules from the temporary mount are loaded, as the temporary mount has a different version of Linux installed than the host is running. 2 fsck. However, I did install lz4-1. May 26, 2022 · In this guide, we learn how to fix umount target is busy in Linux. (In some cases useful info about processes that use. use lsof and some. answered Apr 21, 2020 at 8:01. Solution. Discover effective methods to identify and terminate processes holding the mount point, force unmount, and troubleshoot related issues in shared mount points, NFS, remote filesystems, and virtual environments. fsck from util-linux-ng 2. Also read man lsof. For example this: lsof /mnt/remote will list those processes (there could be many). This allows the unmount operation to bypass the “target is busy” check. It would thus work like this: #!/bin/bash. Next time you are stuck with this message, try the following command to find out what processes have activities on the device/partition automount[20340]: do_umount_autofs_direct: ask umount returned busy for /mnt/point Environment. but seriously, /dev/sda1 is usually the system partition. 김보야 2018. mount -r /dev/mo. Once you've identified the processes, note their Process IDs (PIDs). -l オプションは、すぐにシステムから切り離して新規のアクセスを禁じ、現在実行している参照が全てなくなった Jul 8, 2022 · アンマウント. Oct 16, 2021 · すると target is busy のエラーが返ってきて、アンマウントできなかった。. Lazy unmount. -f – Force unmount (in case of an unreachable NFS system). Oct 26, 2023 · Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have 26. Linux. After umount failed the script deleted all folders of chrooted system. If a process is occupying the disk, it is OK to exit. fuser -cu 마운트경로. This is due to "mount propagation". Share. The manpage has this to say about it: umount - unmount file systems. USBを差し、 sudo fdisk -l を実行しUSBが接続されているか確認する。. so. Now, run the following command to kill the process with PID. Open Files or Processes : If any files or processes are accessing the target, the system will consider it busy and prevent Jul 29, 2015 · Exactly the same findings here. 5sec, the unmount succeeds. The second command unmounts the whole tree recursively. Using any of these methods, the problem “umount target is busy” can be fixed easily. other tricks to see what's using the mount. Oct 14, 2018 · So basically, what I would like to do, is somehow make the umount command wait, until the device is not busy and then umount the HDD and continue executing the script. I've verified that no process is using the folder or anything inside that folder with any of the following commands: If possible, let's locate/identify the busy the process, kill the process and then unmount the samba share to minimize damage. I've launched "Disks" three times and get an error: I've also tried using the lsof cmd to find the pid and used the kill cmd. After sleeping for a 0. それでもアンマウントできない場合, -l オプションを追加すると大抵うまくいきます.. umount /media/hdd1 # Device umounted without any problems continuing the script. You can also add fsck. 누가 사용하고있는지 확인. Oct 30, 2023 · The infamous "target is busy" occurs whenever the Linux kernel detects active processes or open file handles still accessing a mounted filesystem or block device. After the terminal is closed, the device is now able to be unmounted via either the umount command or Mar 3, 2020 · To fix such problem we need to make sure /var/run is pointing to /run . That also adds the "metadata" option, which allows WSL to map Linux permissions on Windows files and directories. Target is busy when unmounting. Just "unmount. Detach the filesystem from the file hierarchy now, and clean up all references to this filesystem as soon as it is not busy anymore. Sep 4, 2023 · If you want to wait until the filesystem is unused because it's on a removable device (for example), you probably want a busy loop to wait for all open file descriptors on the filesystem to go away. Hello, I have a problem with a file system that I cannot unmount: [s1: ~]# umount /root/backup umount: /root/backup: device is busy. Việc ngắt kết nối đĩa trong dòng lệnh Linux không phức tạp. Or use unmount -l anyway and wait for the unmount to action Column 1 Column 2 Column 3; umount / target is busy: Description: The umount command failed to unmount the / directory because it is still in use by another process. マウント先に cd しているユーザーが存在していることが原因で、umount コマンドを実行するとエラーが発生して、アンマウントすることができませんでした。 例えば、以下の場合、エラーが発生します。 ユーザ Aが. /home is not mounted multiple times, but is spread over multiple physical volumes. com: . Cause 2: An abrupt disconnect from the file system's mount target occurred. root = /mnt/. Before unmounted the filesysem. Dec 8, 2020 · Sometimes when we want to "umount" a filesystem, we get a "device busy" message. 8. Be sure to: zfs set canmount=on dataset1. 4. If you run. The output from lsblk indicates that /dev/sda2 is mounted on / which is your root filesystem, containing your operating system. It should handle applications using that filesystem, submounts, containers (lxc-execute -n qqq <command>) and all other things. partitioning. Feb 1, 2024 · To resolve this, follow these steps: Identify the processes using the ` lsof ` (list open files) command: lsof | grep /path/to/target. umount -l /sdd. mountFsTab = false. System monitor should show a running process that keeps the partition busy. At first glance, it is very simple. I never share your information. このエラーを取り除くために何ができるかを学びましょう。. With Disk Utility running, kill it: sudo kill -s 9 [process#]. iy us pm pq hj zp jd ny fg kn