Growing LVM root partition under Dapper?

[Charlie Zender]

Hi,

My computer runs the latest Ubuntu Dapper beta on its 100 GB hard drive.
The problem is that only about 18 GB appear to be available to use.
There is nothing else on the disk except a small 250 MB /boot partition.
I would like to devote the whole disk to Ubuntu.
How do I grow the partition?

Any help appreciated,
Charlie

SCSI device sda: 192426570 512-byte hdwr sectors (98522 MB)
[4294671.182000]  sda: sda1 sda2 < sda5 >

zender at virga:/tmp$ cd /boot
zender at virga:/boot$ df .
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1               233335     58889    161998  27% /boot
zender at virga:~$ cd /
zender at virga:/$ df .
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/Ubuntu-root
                       18118172  16476736    721028  96% /

zender at virga:~$ mount
/dev/mapper/Ubuntu-root on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw)
/sys on /sys type sysfs (rw)
varrun on /var/run type tmpfs (rw)
varlock on /var/lock type tmpfs (rw)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
devshm on /dev/shm type tmpfs (rw)
lrm on /lib/modules/2.6.15-20-686/volatile type tmpfs (rw)
/dev/sda1 on /boot type ext3 (rw)
tmpfs on /lib/modules/2.6.15-21-686/volatile type tmpfs (rw,mode=0755)
-- 
Charlie Zender, surname at uci.edu, Department of Earth System Science
3228 Croul Hall, UC Irvine, Irvine CA 92697-3100. (949) 824-2987 :)