Adding a partition to existing LVM
Steven Stern
subscribed-lists at sterndata.com
Thu Nov 29 05:01:39 UTC 2007
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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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