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Old 12-22-2007, 10:35 AM   #1
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How to resize linux root partition? And use the remaining space...


I tried to resize my fedora root partition with the solution jdupre wrote before in "How to Resize Root LVM Logical Volume???"

(Boot with rescue CD. Skip mounting of the system partitions.

# lvm vgchange -a y
# e2fsck -f /dev/VolGroup00/LogVol00
# resize2fs -f /dev/VolGroup00/LogVol00 37G
# lvm lvreduce -L37G /dev/VolGroup00/LogVol00


Well, the partition became smaller, and I can use it but cannot do anything with the remaining space.

If I check it with the Logical Volume management tool, it shows "Unused space (540 extents)" betveen LogVol00 and LogVol01. But I cannot select it or do anything with it.

pvdisplay /dev/sdb3
--- Physical volume ---
PV Name /dev/sdb3
VG Name VolGroup00
PV Size 54.92 GB / not usable 19.19 MB
Allocatable yes
PE Size (KByte) 32768
Total PE 1757
Free PE 541
Allocated PE 1216

I'd like to migrate it out of LVM, and put an ext3 to it.

Any tips?


Last edited by tab80; 12-22-2007 at 10:47 AM.
Old 12-24-2007, 01:54 PM   #2
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Not a LVM user but to me if the free space is not next to the one you wish to make bigger then you need to create a need LVM partition and then you can merge the two together. As far as a real ext3 partition and wish to keep all data it would be easier to buy a new harddrive and partition the way you want it and then boot up with the boot cd and use ' linux rescue ' mode and mount all partitions on first and second. Then copy the data from one to the other to the correct partitions you want. Then you will need to edit /etc/fstab and point to correct /dev blocks to the correct drives. Edit /boot/grub/grub.conf as well and install grub on the MBR of the second drive which will become the new drive master. probalby can reinstall grub on that MBR when it is by itself in the system from a second boot of the rescue cd. It can be done but easier to be there than to point out each single step.

Old 12-24-2007, 04:24 PM   #3
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I don't use LVM either, but how about pvresize followed by delete/create of the current partition via fdisk.
Lots of opportunity to screw it all up.

Brians option looks much better.
Old 01-08-2008, 03:57 AM   #4
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Finally I've realized that I cannot separate that part from the partition itself so I created a new logical volume on that. It's a part of an active primary partition so I cannot take it apart and make a new partition out of it.


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