Adding a partition to existing LVM

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I had installed Fedora on a dual-boot system using default partition,
where Windows had the first partitions on both drives, C and D. I've
removed the D partition to give that to Fedora.  Although it looks like
the logical volume is 74GB larger, df is showing the same 143GB as before.

How do I get Fedora LVM to use all of the space?

Following instructions from various Googled sources, I created a
partition /dev/sdb1(formerly D) and added it to VolGroup00

# pvdisplay
  --- Physical volume ---
  PV Name               /dev/sda3
  VG Name               VolGroup00
  PV Size               74.32 GB / not usable 8.80 MB
  Allocatable           yes (but full)
  PE Size (KByte)       32768
  Total PE              2378
  Free PE               0
  Allocated PE          2378
  PV UUID               ZQ0z6V-iME2-7hNv-8oFY-CPz1-I3p9-qr0UIC

  --- Physical volume ---
  PV Name               /dev/sdb2
  VG Name               VolGroup00
  PV Size               74.31 GB / not usable 25.11 MB
  Allocatable           yes (but full)
  PE Size (KByte)       32768
  Total PE              2377
  Free PE               0
  Allocated PE          2377
  PV UUID               stTPob-H2GB-5TiA-br1Z-tfp1-nveK-qr83m1

  --- Physical volume ---  ##### THIS IS THE NEW ONE ######
  PV Name               /dev/sdb1
  VG Name               VolGroup00
  PV Size               74.74 GB / not usable 23.00 MB
  Allocatable           yes
  PE Size (KByte)       32768
  Total PE              2391
  Free PE               105
  Allocated PE          2286
  PV UUID               LZTmnI-3TY7-2Ch8-h08E-VQA0-XVzN-jAtEYD


It looks like the LV increased in size by the extra 74GB

# lvdisplay
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  LV UUID                OIyFZ7-cfpt-BCiN-x51g-KWki-D3df-XTm3Ll
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                218.09 GB
  Current LE             6979
  Segments               4
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:0

  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol01
  VG Name                VolGroup00
  LV UUID                pxWlHu-qCUk-9K3E-RK6i-DFJb-OyDN-2nEmmh
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                1.94 GB
  Current LE             62
  Segments               1
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:1


# more /etc/fstab
/dev/VolGroup00/LogVol00 /           ext3    defaults        1 1
LABEL=/boot  /boot                   ext3    defaults        1 2
tmpfs        /dev/shm                tmpfs   defaults        0 0
devpts       /dev/pts                devpts  gid=5,mode=620  0 0
sysfs        /sys                    sysfs   defaults        0 0
proc         /proc                   proc    defaults        0 0
/dev/VolGroup00/LogVol01 swap        swap    defaults        0 0



- --

  Steve
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