<div id="RTEContent">   <div id="RTEContent">Hi,<br>      I am using mandrake 10.2 , and have installed<br>      1)device-mapper.1.01.05.tgz<br>      2)LVM2.2.01.15.tgz<br>      and have untar the patches in "/usr/src/linux-2.6.11-6mdk"<br>  <br>  I have succesfully created physical volume using :         pvcreate <br>then  created volume group  using                         :         vgcreate<br>  <br>  <br>  <br>  [root@localhost ~]# vgdisplay<br>      --- Volume group ---<br>      VG Name               volume1<br>      System ID<br>      Format              &n!
bsp;
 lvm2<br>      Metadata Areas        2<br>      Metadata Sequence No  1<br>      VG Access             read/write<br>      VG Status             resizable<br>      MAX LV                0<br>      Cur LV                0<br>      Open LV               0<br>      Max PV                0<br>      Cur PV                2<br>      Act
 PV                2<br>      VG Size               6.35 GB<br>      PE Size               4.00 MB<br>      Total PE              1626<br>      Alloc PE / Size       0 / 0<br>      Free  PE / Size       1626 / 6.35 GB<br>    VG  UUID                zZO4ie-mfY7-st4p-G6ah-tnyf-S5Nt-7AWkzu<br>    <br>  <br>  but while creating  logical volumes from volume group i get following messages :<br>  <br>  [root@localhost ~]# lvcreate -L1500 -nshash volume1<br>  <br>    /proc/misc: No entry for device-mapper found<br>    Is device-map!
per
 driver missing from kernel?<br>    Failure to communicate with kernel device-mapper driver.<br>    striped: Required device-mapper target(s) not detected in your kernel<br>    lvcreate: Create a logical volume<br>  <br>  lvcreate<br>          [-A|--autobackup {y|n}]<br>          [--addtag Tag]<br>          [--alloc AllocationPolicy]<br>          [-C|--contiguous {y|n}]<br>          [-d|--debug]<br>          [-h|-?|--help]<br>          [-i|--stripes Stripes [-I|--stripesize StripeSize]]<br>          {-l|--extents LogicalExtentsNumber |<br>           -L|--size LogicalVolumeSize[kKmMgGtT]}<br>          [-M|--persi!
stent
 {y|n}] [--major major] [--minor minor]<br>          [-m|--mirrors Mirrors]<br>          [-n|--name LogicalVolumeName]<br>          [-p|--permission {r|rw}]<br>          [-r|--readahead ReadAheadSectors]<br>          [-R|--regionsize MirrorLogRegionSize]<br>          [-t|--test]<br>          [--type VolumeType]<br>          [-v|--verbose]<br>          [-Z|--zero {y|n}]<br>          [--version]<br>          VolumeGroupName [PhysicalVolumePath...]<br>  <br>  lvcreate -s|--snapshot<br>          [-c|--chunksize]<br>          [-A|--a!
utobackup
 {y|n}]<br>          [--addtag Tag]<br>          [--alloc AllocationPolicy]<br>          [-C|--contiguous {y|n}]<br>          [-d|--debug]<br>          [-h|-?|--help]<br>          [-i|--stripes Stripes [-I|--stripesize StripeSize]]<br>          {-l|--extents LogicalExtentsNumber |<br>           -L|--size LogicalVolumeSize[kKmMgGtT]}<br>          [-M|--persistent {y|n}] [--major major] [--minor minor]<br>          [-n|--name LogicalVolumeName]<br>          [-p|--permission {r|rw}]<br>          [-r|--readahead ReadAheadSectors]<br> 
         [-t|--test]<br>          [-v|--verbose]<br>          [--version]<br>          OriginalLogicalVolume[Path] [PhysicalVolumePath...]<br>  <br>  ------------------------------------------------------------------------------------------------<br>  <br>  [root@localhost ~]# lvcreate -i2 -I8 -l100 -nanothervolume1 volume1<br>    <br>    /proc/misc: No entry for device-mapper found<br>    Is device-mapper driver missing from kernel?<br>    Failure to communicate with kernel device-mapper driver.<br>    striped: Required device-mapper target(s) not detected in your kernel<br>    lvcreate: Create a logical volume<br>  <br>  lvcreate<br>          [-A|--autobackup {y|n}]<br>          [--addtag Tag]<br>        &nb!
sp;
 [--alloc AllocationPolicy]<br>          [-C|--contiguous {y|n}]<br>          [-d|--debug]<br>          [-h|-?|--help]<br>          [-i|--stripes Stripes [-I|--stripesize StripeSize]]<br>          {-l|--extents LogicalExtentsNumber |<br>           -L|--size LogicalVolumeSize[kKmMgGtT]}<br>          [-M|--persistent {y|n}] [--major major] [--minor minor]<br>          [-m|--mirrors Mirrors]<br>          [-n|--name LogicalVolumeName]<br>          [-p|--permission {r|rw}]<br>          [-r|--readahead ReadAheadSectors]<br>          [-R|--regionsize
 MirrorLogRegionSize]<br>          [-t|--test]<br>          [--type VolumeType]<br>          [-v|--verbose]<br>          [-Z|--zero {y|n}]<br>          [--version]<br>          VolumeGroupName [PhysicalVolumePath...]<br>  <br>  lvcreate -s|--snapshot<br>          [-c|--chunksize]<br>          [-A|--autobackup {y|n}]<br>          [--addtag Tag]<br>          [--alloc AllocationPolicy]<br>          [-C|--contiguous {y|n}]<br>          [-d|--debug]<br>          [-h|-?|--help]<br>          [-i|--str!
ipes
 Stripes [-I|--stripesize StripeSize]]<br>          {-l|--extents LogicalExtentsNumber |<br>           -L|--size LogicalVolumeSize[kKmMgGtT]}<br>          [-M|--persistent {y|n}] [--major major] [--minor minor]<br>          [-n|--name LogicalVolumeName]<br>          [-p|--permission {r|rw}]<br>          [-r|--readahead ReadAheadSectors]<br>          [-t|--test]<br>          [-v|--verbose]<br>          [--version]<br>          OriginalLogicalVolume[Path] [PhysicalVolumePath...]<br>  <br>  please help me ....<br>  what is the problem here?<br> 
                                                                      -Shashank K.<br>                                                                         PhD C.S.<br> 
                                                                        IIT POWOI<br>                                                                         INDIA <br>  <br>  <br>  </div>  </div><p>
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