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Thread: Permission Denied On USB Hard Drive

  1. #1
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    Permission Denied On USB Hard Drive

    I'm trying to move some .jpg & .mp3 files from a USB hard drive that is formatted under MAC OSX (0xaf) to a Windows Vista Laptop.

    I am using a Knoppix 6 live cd. Knoppix sees the laptop hard drive as

    System /media/sda2
    Vista /media/sda3
    Recovery /media/sda1

    and the USB hard drive as

    disk2s1

    I can see files on the laptop's hard drive but when I try to access the USB drive I get 'Permission Denied'

    Can the files on this drive be transferred to the laptop?

    Thanks for any help or suggestions

  2. #2
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    Asheville, NC, USA
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    Need more information

    Quote Originally Posted by Cherry5 View Post
    I'm trying to move some .jpg & .mp3 files from a USB hard drive that is formatted under MAC OSX (0xaf) to a Windows Vista Laptop.

    I am using a Knoppix 6 live cd. Knoppix sees the laptop hard drive as

    System /media/sda2
    Vista /media/sda3
    Recovery /media/sda1

    and the USB hard drive as

    disk2s1

    I can see files on the laptop's hard drive but when I try to access the USB drive I get 'Permission Denied'

    Can the files on this drive be transferred to the laptop?

    Thanks for any help or suggestions
    Have you tried
    Code:
    ls -la disk2s1
    to get more information (owner, etc.), or sudo to make your requests with root permissions?

    Cheers!
    Krishna

  3. #3
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    Quote Originally Posted by krishna.murphy View Post
    Have you tried
    Code:
    ls -la disk2s1
    to get more information (owner, etc.), or sudo to make your requests with root permissions?

    Cheers!
    Krishna
    Hi

    All I get is: ls cannot access disk2s1 no such file or directory

  4. #4
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    Quote Originally Posted by Cherry5 View Post
    Hi

    All I get is: ls cannot access disk2s1 no such file or directory
    Okay, try this:
    Code:
    locate disk2s1
    That should tell you where it is, I think. The MacOS disk format seems to be pretty challenging for other OSs...

    Krishna

  5. #5
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    Not much luck

    Quote Originally Posted by krishna.murphy View Post
    Okay, try this:
    Code:
    locate disk2s1
    That should tell you where it is, I think. The MacOS disk format seems to be pretty challenging for other OSs...

    Krishna
    Hi

    Now I get this:

    locate:warning:database '/var/cache/locate/locaedb' is more than 8 days old (actual age is 61.0days)

  6. #6
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    I think that "disk2s1" is the partition's label. Usually the partition gets a mount point in the directory /media and that mount point is named after the device name. In the PCMan File Manager the partitions are often identified by their label. You might try
    Code:
    ls -l /dev/disk/by-label/disk2s1
    to get the device name. Execution of the command
    Code:
    mount
    delivers information about the partition's mount point if it's already mounted. Afterwards you might execute
    Code:
    ls -la "mount point"
    Example: The partition has got the label "Cruzer1" and the device name is /dev/sda1. The mount command delivers the mount point /media/sda1. Thus I would execute
    Code:
    ls -la /media/sda1
    in order to see the owner, group and permissions.

    If the partition has not yet been mounted then the mount command won't show you a mount point, but
    you might try
    Code:
    sudo mkdir /media/macdisk
    sudo mount -o gid=1000,uid=1000 /dev/disk/by-label/disk2s1 /media/macdisk
    ls -la /media/disk2s1
    If this does not work then mount will give you an error message.

  7. #7
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    The replies to the commands are as follows:

    lrwxrwxrwx 1 root root 10 Apr 10 14:19 /dev/disk/by-label/disk2s1 -> ../../sdb1



    rootfs on / type rootfs (rw,relatime)
    proc on /proc type proc (rw,relatime)
    sysfs on /sys type sysfs (rw,relatime)
    /dev/sr0 on /mnt-system type iso9660 (ro,relatime)
    tmpfs on /ramdisk type tmpfs (rw,relatime,size=1048576k)
    /dev/cloop on /KNOPPIX type iso9660 (ro,relatime)
    unionfs on /UNIONFS type aufs (rw,relatime,si=9c1cdfb0,noplink)
    unionfs on /home type aufs (rw,relatime,si=9c1cdfb0,noplink)
    usbfs on /proc/bus/usb type usbfs (rw,relatime)
    tmpfs on /UNIONFS/var/run type tmpfs (rw,relatime,size=10240k)
    tmpfs on /UNIONFS/var/lock type tmpfs (rw,relatime,size=10240k)
    tmpfs on /UNIONFS/var/log type tmpfs (rw,relatime,size=102400k)
    tmpfs on /tmp type tmpfs (rw,relatime,size=1048576k)
    udev on /dev type tmpfs (rw,relatime,size=20480k)
    tmpfs on /dev/shm type tmpfs (rw,relatime,size=1048576k)
    devpts on /dev/pts type devpts (rw,relatime,mode=1777)
    /dev/sda1 on /media/sda1 type fuseblk (rw,nosuid,nodev,relatime,user_id=1000,group_id=10 00,allow_other,blksize=4096)
    /dev/sda2 on /media/sda2 type fuseblk (rw,nosuid,nodev,relatime,user_id=1000,group_id=10 00,allow_other,blksize=4096)
    /dev/sda3 on /media/sda3 type fuseblk (rw,nosuid,nodev,relatime,user_id=1000,group_id=10 00,allow_other,blksize=4096)
    /dev/sdb1 on /media/sdb1 type hfsplus (ro,nosuid,nodev,relatime,umask=22,uid=1000,gid=10 00,nls=utf



    ls: cannot access mount point: No such file or directory



    ls: /media/sda1/System Volume Information: Permission denied
    total 20
    drwxr-xr-x+ 1 knoppix root 4096 Jun 4 2009 .
    drwxr-xr-x 8 root root 0 Apr 10 14:26 ..
    drwxr-xr-x+ 1 root root 0 Jun 1 2009 ImageLayout
    drwxr-xr-x+ 1 knoppix root 0 Mar 21 2007 Program Files
    drwxr-xr-x+ 1 knoppix root 0 Mar 21 2007 ProgramData
    drwx------ 1 root root 0 Jun 1 2009 System Volume Information
    drwxr-xr-x+ 1 knoppix root 0 Mar 21 2007 Users
    drwxr-xr-x+ 1 knoppix root 8192 Mar 21 2007 Windows
    -rwxr-xr-x 1 root root 0 Nov 10 2006 hdd
    drwxr-xr-x+ 1 knoppix root 4096 Mar 21 2007 sources
    drwxr-xr-x+ 1 root root 4096 Jun 13 2007 tgm



    sage: mount -V : print version
    mount -h : print this help
    mount : list mounted filesystems
    mount -l : idem, including volume labels
    So far the informational part. Next the mounting.
    The command is `mount [-t fstype] something somewhere'.
    Details found in /etc/fstab may be omitted.
    mount -a [-t|-O] ... : mount all stuff from /etc/fstab
    mount device : mount device at the known place
    mount directory : mount known device here
    mount -t type dev dir : ordinary mount command
    Note that one does not really mount a device, one mounts
    a filesystem (of the given type) found on the device.
    One can also mount an already visible directory tree elsewhere:
    mount --bind olddir newdir
    or move a subtree:
    mount --move olddir newdir
    One can change the type of mount containing the directory dir:
    mount --make-shared dir
    mount --make-slave dir
    mount --make-private dir
    mount --make-unbindable dir
    One can change the type of all the mounts in a mount subtree
    containing the directory dir:
    mount --make-rshared dir
    mount --make-rslave dir
    mount --make-rprivate dir
    mount --make-runbindable dir
    A device can be given by name, say /dev/hda1 or /dev/cdrom,
    or by label, using -L label or by uuid, using -U uuid .
    Other options: [-nfFrsvw] [-o options] [-p passwdfd].
    For many more details, say man 8 mount .



    I still get 'Permission Denied' when I try to access the disk. I can mount and un-mount by right clicking the drive.

  8. #8
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    Quote Originally Posted by Cherry5
    /dev/sdb1 on /media/sdb1 type hfsplus (ro,nosuid,nodev,relatime,umask=22,uid=1000,gid=10 00,nls=utf
    Your USB disk has been mounted on /media/sdb1. You may not write on it but you may read. Now you might run the command
    Code:
    ls -al /media/sdb1
    to see owner, group and permissions of the files and directories.

  9. #9
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    After ls -al /media sdb1


    root@Microknoppix:/home/knoppix# ls -al /media/sdb1
    total 0
    drwxrwxr-x 2 knoppix knoppix 0 Apr 10 16:16 .
    drwxr-xr-x 7 root root 0 Apr 10 16:16 ..
    root@Microknoppix:/home/knoppix#

  10. #10
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    Quote Originally Posted by Cherry5 View Post
    After ls -al /media sdb1


    root@Microknoppix:/home/knoppix# ls -al /media/sdb1
    total 0
    drwxrwxr-x 2 knoppix knoppix 0 Apr 10 16:16 .
    drwxr-xr-x 7 root root 0 Apr 10 16:16 ..
    root@Microknoppix:/home/knoppix#
    Still Getting this:

    Screenshot..jpg

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