General :: Cannot Umount Volume / Get It To Work?
Dec 15, 2010
I am using ubuntu8.04 and i am not able to umount my usb using unmount option even as root on command line.
If i try the same using mouse right click, it showing error mesage as follows. "Cannot unmount volume. The volume 'STEEVEN_1' was probably mounted manually on the command line. Details: Device to unmount is not in /media/.halmtab so it is not mounted by HAL."
usb label is appearing even after the unmouting the usb manually.
next time mounting adding another hyphen to the usb label as follows.
steeven_1, steeven_1_, steeven_1__, steeven_1___ etc.
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Jul 10, 2010
I have a network share mounted with cifs which does not work as expected. It should automount at boot and dismount at shutdown. It does not automount at boot, but "# mount -a" will mount it in the gui after booting finishes. This I can live with, but at shutdown or reboot, the cifs share hangs for about 30 seconds before dying. My /etc/fstab entry code...
I saw a bug report about the cifs umount issue, but can't find it at the moment. I did notice that it was a very old bug. If I remember to do "# umount /media/data-srv" before rebooting, all is fine, but I seem to constantly forget and then stew as the system hangs for an extra 30-45 seconds. I've tried several things to automate it including shutdown scripts added to /etc/init.d/ and elsewhere, but nothing seems to work. Anyone have this issue and find a work-around?
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Apr 8, 2011
I just installed Linux Mint XFCE (newly-released Debian Based OS)My Problem is that I cannot get the volume buttons on my keyboard to work. I've done some research and it appears I need to install the "xfce4-volumed" package and I have done so. Still the buttons do not work. I've also tried installing xfce4 and also gstreamer.Nothing has worked.
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Jul 19, 2011
I am writing this software that creates virtual block device nodes almost like loop does. I need to allow non-superusers to mount and umount filesystems from these devices. I don't know the names of the block device nodes beforehand so i can't use fstab entries to add "user" or "owner" flags there.
Currently i solve this by providing a small suid helper tool that verifies that this is indeed "my" block device the user is trying to mount and then just call /sbin/mount or /sbin/umount to do the job. This is definitely better than setting a suid bit for the whole program but not really perfect.
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Oct 25, 2010
I've mounted a share using standard nomenclature for the NFS mount command with the following command line:
mount -t nfs -o rw {IP address1}:/ /mnt_for_70 / {IP address2}(rw)
mnt_for_70 is a mount point I created on {IP address2}
I'm confuse and want to be sure I use the correct command on the correct host to correctly umount the nfs share.
Would I execute umount /mnt_for_70 on {IP address2}
Not sure if such a simple command will work. As this is a semi-production host pair, I hesitate to just umount so simply & I have no test systems to try this on...
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Mar 27, 2010
Is there a way to provide post-mount and pre-umount scripts in Linux?
I am trying to do some scripts on storage media when mounted and before umounting (eg, for syncing).
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Dec 1, 2010
I'm rearranging a bunch of disks on my server at home and I find myself in the position of wanting to move a bunch of LVM logical volumes to another volume group. Is there a simple way to do this? I saw mention of a cplv command but this seems to be either old or not something that was ever available for linux.
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Jun 3, 2011
I want to umount root partition. below is the o/p for df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 12G 3.2G 7.8G 30% /
tmpfs 506M 0 506M 0% /dev/shm
If i give #umount /dev/sda1 im getting the below error.i can't unmount the file system
umount: /: device is busy
umount: /: device is busy
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Feb 6, 2010
I am using 8.04 Sometimes, when I start some video or audio file, I cant hear the sound. Even if it is working some time back. Then it starts all of a sudden or mostly I need to do a restart.
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Apr 24, 2011
Yesterday my computer started acting up. I'm not sure if it had anything to do with the update, but it happened shortly after, so i'm thinking that it's likely.My laptop has one of those touch-pads that controls the volume. Now it won't work. I tried going into preferences<sound to change the volume, but that doesn't even work. As much as I change the volume, it just stays where it's at.
Volume control on the panel won't work either.Also, another problem I'm experiencing is that when I go on ..... all of the videos play really fast. =/ not sure if it's ubuntu related, but this problem started at the same time as the other.
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Jun 2, 2011
I can't change the volume of sound under KDE or XFCE, only mute works, but GnomeSlackBuild, on my notebook. the chipset is 940gml. I saw some post said recompile or reconfigure the ALSA would .
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Feb 26, 2011
HP 210 Mini
Fedora 14 xfce
2.6.35.11-83.fc14.x86_64
I have inserted my handy drive. However, when I right click and select unmount I get the following message:
An application is preventing the volume "New Volume" from being unmounted
So I try from the command line:
umount /dev/sdb1
And I get the following message:
umount: /media/New Volume: device is busy.
All I have done is copied some files to my handy drive. So I am not sure what process is keeping my handy drive busy.Is there any command that I can use to see what process of anything else is using the handy drive?
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Jan 31, 2010
I bought a Toshiba Nb205 laptop with a Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) inside. After I first got it I installed Ubuntu onto it, and that's where the problems started. After everything was installed I noticed that my sound doesn't work. So I looked everywhere. I tried so many solutions offered on these forums including messing around with Alsamixer and nothing seemed to be working. Then one day I luckily stumbled upon this website that directed me here: [URL] So I went there and picked the Linux 2.6(X86)(DEB) from the drop down list and installed it. I rebooted my machine, and I now had sound.
However, the only problem is that I can't control the volume of the sound. When I play something, it stays at one volume and one volume only. Nothing on sound preferences will work. The only way I can raise or lower the volume is if I do it in the application that I run, like if I am playing a ..... video, I have to use their volume control to control the volume. My master volume won't work at all.
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Jan 19, 2010
I have a netbook I am setting up for our class (30 in all when I get it working). I had pam_mount working at creating the mount and unmounting with version 11, but I ran into some problem and am trying to reproduce the same results with Fedora 12. The only problem I seem to be having is the umount process. I don�t even see pam_mount trying to unmount at logoff in the log. Here are the conf files that should be relevant.The part I am getting stuck on is there is no output in the message log and I have the exact same setup on a Fedora 11 setup and it works no problem.
Pam_mount_conf.xml
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE pam_mount SYSTEM "pam_mount.conf.xml.dtd">
[code]....
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Mar 30, 2015
I recently install a Debian 8.0 Jessie on a Laptop Dell latitude E6540 with gnome 3.14+3. But the problem is that it doesn't recongnize my multimedia buttons, I tried some methods but I didn't get results.
Code:
Code: Select all$showkey --scancodes
volume up -- 0xe0 0x30 0xe0 0xb0
volume down -- 0xe0 0x2e 0xe0 0xae
volume mute -- 0xe0 0x20 0xe0 0xa0
$showkey --keycodes
volume up -- 115
volume down -- 114
volume mute -- 113
[Code] ....
When I reassinged the keys on Settings>Keyboard>Shortcuts to F7, F8 and F9 it works, but when use the keys volume up, down and mute It doesn't show anything.
The same happens with Fn + Brightness keys, in this case it worked the first time but then stop to work I don't know why..
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May 7, 2011
i've just put on a fresh install of natty narwhal, and the volume slider in the top right corner doesn't work. if i move it all the way left to 0, the sound goes off, but anything non-zero seems to be full volume. i searched a bit , tried fiddling around in alsamixer , and gconf-editor -> apps->gnome_settings_daemon->volume_step but couldn't get any useful result.
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Aug 5, 2009
originally my sounds worked completely, but now I only have sound out of the headphone jack. I used all the OEM software originally, but ended up following this step-by-step guide to run all pulse audio. After installing that I noticed that the sound keys on my laptop still showed that they changed the volume, but didn't have any effect in PulseAudio Volume Control... fixed that by changing the keyboard layout. While that bugged me the sound still came out of my speakers and headphone jack, but just recently the speakers randomly stopped working. Has anyone else experienced this?Computer:Lenovo 3000 N100 0768-4JUWindows 7, and Ubuntu 9.04*Edit- I tried to make it in one post, but it would not allow me yet saying I tried to post a link.
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Apr 2, 2011
On one of my computers that I upgraded from 11.3 to 11.4 with a SSD HDD, it no longer umounts any disks on reboot or shutdown, there are no errors shown, it goes from sending TERM and KILL to rebooting.here is my fstab:
Code:
/dev/disk/by-id/ata-OCZ_SOLID_SSD_MK0109030A6100011-part1 /boot ext4 acl,user_xattr,noatime 1 2
[code]...
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Mar 27, 2011
I mount my NFS shares with fstab entries likexxxx.xxxx.xx:/srv/vdr /media/vdr_video nfs noauto,user,bg,soft,intr,retry=5 0 0 With openSUSE 11.2 works this fine. With openSUSE 11.4 installation (no upgrade) only NFS mount works fine. The umount command works only with root.
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Jul 30, 2010
I managed to boot from hard disk, everything works ok. But Gparted has a bug, it works in Live Hard Disk, but not when I click the install icon because it can't umount /cdrom. But I solved that by formatting ext4 and swap area from gnome-panel Live Hard Disk and only put mount point / after click on install.But problem stroked back: install is not possible because it wants to umount itself before installing, wich cannot be possible. I'm installing it in a new place /dev/sda5. Live Hard Disk is booting from /dev/sda3.
ubuntu@ubuntu:~$ df -h | grep sda
/dev/sda3 2.0G 726M 1.3G 36% /cdrom
/dev/sda1 43G 17G 26G 41% /media/Windows
[code]....
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Aug 29, 2010
I've installed aufs in order to seemlessly union two filesystems over /usr. One branch is the plain old, existing /usr directory; it's not mounted from a separate filesystem or anything. The other is a /usr on a microsd card. This is what I've added to /etc/fstab:
#the microsd mounted on /aufs/internal_microsd
/dev/mmcblk0p1 /aufs/internal_microsd/ ext2 defaults,noatime 0 0
#the aufs /usr union
[code]...
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Feb 9, 2011
I need to do mount/umount operations in my c program. But my program can only be run under normal user. However, the user who run my program have sudo priviledges to do mount/umount operations. How can i apply the sudo privileges in the mount(2) system call?
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Apr 27, 2010
I have some trouble using autofs with Slackware64 13.0I use the alien's script [URL]Here's my auto.master :/mnt/autofs/etc/auto.misc --timeout 20Here's my auto.misc [URL]
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Jan 10, 2009
I've just upgraded from F9 to F10. I can boot okay but I seem to have lost some data in one of my logical volumes. My drive is organised as follows:
/dev/mapper/main_group-various: UUID="f7c452cf-9f03-4f97-8676-b71b07a812aa" TYPE="ext3" SEC_TYPE="ext2"
/dev/mapper/main_group-root: UUID="173f1845-72c9-49e8-9d49-2a5776c4267c" TYPE="ext3" SEC_TYPE="ext2"
/dev/mapper/main_group-music: UUID="f5411861-4614-4652-a5f5-a3a8c2efcdd3" TYPE="ext3" SEC_TYPE="ext2"
[code].....
The logical volume for work still seems to be there. I presume (and hope) that all the information in /dev/main_group/work is still there. How can the folders in /dev/main_group/work be retrieved?
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May 16, 2010
I have an imac and i recently decided to dual boot Ubuntu as well.
The sound is fine on the mac partition but the internal speakers dont work on the Ubuntu side.
headphones do work but the volume is oddly low
Nothing is muted on alsamixer, and I think i have the right driver for my sound card
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Sep 1, 2011
Ubuntu 10.04 lts Desktop suddenly started to delete the mountpoint directory after umount:
mkdir dirsudo mount -t ntfs /dev/sda1 dir... works well ...sudo umount dirdir is gone Another similar unanswered post.
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Apr 29, 2009
I want my apache user (www-data) to be able to umount drives that are mounted with fuse. (i think it is the same as regular umount, but i'm not sure)
when i execute: www-data@1:$ umount /2345umount: /2345 is not in the fstab (and you are not root)
how can i get this done?
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Mar 3, 2010
Running OpenSuSE 11.2, KDE 4.3.5 "release 0", kernel 2.6.31.12-13-default.
During shutdown, the messages state:
"Unmounting file systems
Could not find /windows/J_big in mtab
[code]....
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Jun 1, 2010
Debian if I suspend the PC, will the external mounted harddisk safely umount automatically? I want to make sure that the integrity of my external HDD is not compromised while the PC goes in the suspend mode.
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Feb 1, 2010
I have built a kernel with a ramdisk(ramdisk.image.gz) included. Also in the kernel command line I specified root=/dev/ram0. I am trying to use this ramdisk to load a loopback file as the root filesystem off a fat partition. This is /sbin/init from the ramdisk.
#!/bin/sh
mount -n -t msdos /dev/mmcblk0p1 /mnt
losetup /dev/loop0 /mnt/linux/linuxdsk.img
mount -t ext2 /dev/loop0 /mnt2
[Code]....
The problem is both umount and blockdev report "device is busy". I want to free up this RAM any suggestions?
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