Difference between revisions of "LVM2"


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(added how to mount a LVM volume)
(Updated the content to match 5.0.1)
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If you want to use LVM2 in Knoppix you have to load and install the kernel module and some programs.
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*(If you use an old Knoppix version you may need to install LVM tools first. '''Version 5.0.1 already has the packages and dm-mod module loaded, and the following first steps are not necessary'''.)
To activate it just type as root
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  # modprobe dm-mod
 
  # modprobe dm-mod
 
  # apt-get update
 
  # apt-get update
 
  # apt-get install lvm-common lvm2
 
  # apt-get install lvm-common lvm2
 
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Remember that the tools are in /lib/lvm-200 but if you don't want to type the complete path, you may link them into /usr/bin.
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If you needed the above steps, remember that the tools are in /lib/lvm-200 but if you don't want to type the complete path, you may link them into /usr/bin.
 
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  # lndir /lib/lvm-200/ /usr/sbin/
 
  # lndir /lib/lvm-200/ /usr/sbin/
  
 
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*To use existing volume groups you have to activate them.
To use existing volume groups you have to activate them.
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  # vgscan
 
  # vgscan
 
  # vgchange -a y
 
  # vgchange -a y
  
To mount it, find the VG name, then find that name in /dev/
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*To mount it, find the VG name, then find that name in /dev/
  
 
  # vgdisplay | head
 
  # vgdisplay | head
 
  --- Volume group ---
 
  --- Volume group ---
 
  VG Name              music2_vg
 
  VG Name              music2_vg
 
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  # ls /dev/music2_vg/*
 
  # ls /dev/music2_vg/*
 
  /dev/music2_vg/lvol1
 
  /dev/music2_vg/lvol1
 
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  # mount /dev/music2_vg/lvol1 /mnt/tmp
 
  # mount /dev/music2_vg/lvol1 /mnt/tmp
 
  # ls /mnt/tmp
 
  # ls /mnt/tmp
 
  lost+found  mp3
 
  lost+found  mp3

Revision as of 21:00, 24 October 2006

  • (If you use an old Knoppix version you may need to install LVM tools first. Version 5.0.1 already has the packages and dm-mod module loaded, and the following first steps are not necessary.)
# modprobe dm-mod
# apt-get update
# apt-get install lvm-common lvm2

If you needed the above steps, remember that the tools are in /lib/lvm-200 but if you don't want to type the complete path, you may link them into /usr/bin.

# lndir /lib/lvm-200/ /usr/sbin/
  • To use existing volume groups you have to activate them.
# vgscan
# vgchange -a y
  • To mount it, find the VG name, then find that name in /dev/
# vgdisplay | head
--- Volume group ---
VG Name               music2_vg

# ls /dev/music2_vg/*
/dev/music2_vg/lvol1

# mount /dev/music2_vg/lvol1 /mnt/tmp
# ls /mnt/tmp
lost+found  mp3