Hello
I am having a problem with umountint an ntfs-3g mounted filesystem
This is the output I get from the commands
[siirfe@010121 ~]$ mount /mnt/mac/ [siirfe@010121 ~]$ mount |grep mac /dev/sdb1 on /mnt/mac type fuseblk (rw,nosuid,nodev,noexec,relatime,user_id=1002,group_id=1002,allow_other,blksize=4096) [siirfe@010121 ~]$ umount /mnt/mac/ umount: /mnt/mac: umount failed: Operation not permitted [siirfe@010121 ~]$ grep mac /etc/fstab /dev/disk/by-label/SIIRFE_MAC /mnt/mac auto iocharset=utf8,noauto,user 0 0 [siirfe@010121 ~]$ grep mac /etc/mtab /dev/sdb1 /mnt/mac fuseblk rw,nosuid,nodev,noexec,relatime,user_id=1002,group_id=1002,allow_other,blksize=4096 0 0 [siirfe@010121 ~]$ fusermount -u /mnt/mac/
fusermount -u works correctly
What is going on here? what am I missing? I don't use gnome nor kde
I appreciate any input. Thank you
I think I have found what is happening.
The entry in fstab for this device (recognized by label) has the "user" option. It is mounted using ntfs-3g with fuser, so the binary is suid to be able to mount as ordinary user. After mounting, the mount point has the same owner as the user who mounted the filesystem, but said user is not allowed to umount the filesystem.
What I did is change the "user"option into "users" (which I would rather not have to). My guess is the problem resides in the suid bit for ntfs-3g somehow, but I could not find any documented behaviour.
Thank you.
On Tue, Mar 17, 2015 at 9:07 PM, dabicho tsukebumi@gmail.com wrote:
Hello
I am having a problem with umountint an ntfs-3g mounted filesystem
This is the output I get from the commands
[siirfe@010121 ~]$ mount /mnt/mac/ [siirfe@010121 ~]$ mount |grep mac /dev/sdb1 on /mnt/mac type fuseblk (rw,nosuid,nodev,noexec,relatime,user_id=1002,group_id=1002,allow_other,blksize=4096) [siirfe@010121 ~]$ umount /mnt/mac/ umount: /mnt/mac: umount failed: Operation not permitted [siirfe@010121 ~]$ grep mac /etc/fstab /dev/disk/by-label/SIIRFE_MAC /mnt/mac auto iocharset=utf8,noauto,user 0 0 [siirfe@010121 ~]$ grep mac /etc/mtab /dev/sdb1 /mnt/mac fuseblk rw,nosuid,nodev,noexec,relatime,user_id=1002,group_id=1002,allow_other,blksize=4096 0 0 [siirfe@010121 ~]$ fusermount -u /mnt/mac/
fusermount -u works correctly
What is going on here? what am I missing? I don't use gnome nor kde
I appreciate any input. Thank you
-
dabicho