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Re: Universal drive adapter -



On 10/12/09 14:25, Bill Davidsen wrote:
Bryn M. Reeves wrote:
On 12/10/2009 03:28 PM, Bob Goodwin wrote:
On 10/12/09 10:19, Bryn M. Reeves wrote:

    blkid /dev/sdc1
    Ok, thank you, that gives me a bit more information:

    [root box6 bob]# file -s /dev/sdc1
    /dev/sdc1: LVM2 (Linux Logical Volume Manager) , UUID:
    X5Vx9im0hf7hS6Y4WNhdW2ju8heRtUh

    [root box6 bob]# blkid /dev/sdc1
    /dev/sdc1: UUID="X5Vx9i-m0hf-7hS6-Y4WN-hdW2-ju8h-eRtUhR"
    TYPE="LVM2_member"

    Is there a way to list directories and files?


The drive was configured for use with the logical volume manager
(LVM2). You need to use the LVM2 tools to find out what volume group
is on the disk and what logical volumes it contains. Then you can
activate and mount the devices like any other block device.

Have a look at the LVM2 documentation/man pages or how-tos for more
information.

[___ useful examples and such snipped ___]

Thanks, this is a good cheat sheet to give to new (or reluctant) LVM users.
Don't know if it helped the OP but I found it useful.


   Yes, I posted the question and found the response interesting and
   helpful. I spent a couple of hours reading man pages and
   experimenting with the lvm commands on various drives.

   But I have not been able to open a volume and list the directories
   and files, such as /home and /etc! I must be dense ...

   This from another drive:

       [root box6 bob]# lvm
       lvm> pvdisplay
          --- Physical volume ---
          PV Name               /dev/sdb2
          VG Name               VolGroup00
          PV Size               74.43 GB / not usable 22.62 MB
          Allocatable           yes
          PE Size (KByte)       32768
          Total PE              2381
          Free PE               1
          Allocated PE          2380
          PV UUID               J5Yc28-aO4n-ODWI-1c0W-H9Jr-04jN-ufwyRj

       And fdisk shows:

       Disk /dev/sdc: 20.0 GB, 20020396032 bytes
       255 heads, 63 sectors/track, 2434 cylinders
       Units = cylinders of 16065 * 512 = 8225280 bytes
       Disk identifier: 0x000c6487

           Device Boot      Start         End      Blocks   Id  System
       /dev/sdc1   *           1        2434    19551073+  8e  Linux LVM

       But I can't mount this one either using  " mount /dev/sdc1 -t
       ext3 /mnt/hdtest "

       It protests about the file type[?]. Perhaps lvm requires a
       different type?


   Bob


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