Hi, I've just received a PC with 2 HDs with LVM. I wish to remove one
of the HDs (/dev/sdb or /dev/sda???) from the LVM (well I wish to
install MS WinXP somehow!). However, if I try to remove the HD it
says (rightly) that it is still in use, but then again I can't
umount / can I?! I'm also unclear if I need to reduce the filesystems
somehow.
Here's some more details of what I tried (handtyped since other
machine isn't on the network). I've Googled about but to no avail.
Thanks, M
$ mount
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
...
# vgscan
..
Found volume group "VolGroup00" using metadata type lvm2
# pvdisplay /dev/sda2
--- Physical volume ---
PV Name /dev/sda2
VG Name VolGroup00
PV Size 465.66Gb/not usable 3.56MB
Allocatable yes
PE Size (KByte) 32768
Total PE 14901
Free PE 2
Allocated PE 14899
# pvdisplay /dev/sdb1
--- Physical volume ---
PV Name /dev/sdb1
VG Name VolGroup00
PV Size 698.64Gb/not usable 10.34MB
Allocatable yes (but full)
PE Size (KByte) 32768
Total PE 22356
Free PE 0
Allocated PE 22356
# umount /dev/mapper/VolGroup00-LogVol00
umount: /: device is busy
umount: /: device is busy
# vgreduce /dev/mapper/VolGroup00 /dev/sda2
Physical volume "/dev/sda2" still in use
# vgreduce /dev/mapper/VolGroup00 /dev/sdb1
Physical volume "/dev/sdb1" still in use
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