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Operating Systems Linux Red Hat Increase Linux partition size Post 302492291 by STOIE on Sunday 30th of January 2011 11:27:09 PM
Old 01-31-2011
Option is this:

Create a new partition same size as the old one.
Copy contents to it.
umount the old one, mount the new one... (a few seconds downtime)... will have to bounce services.
Expand the old partition:
fdisk /dev/cciss/c0d0
d
u
u
p
n
p
1,2,3,4???
start
end
w
q
resize2fs /dev/cciss/c0d0p9
fsck.ext3 -f /dev/cciss/c0d0p9
Then umount the new partition, and mount the expanded old one. (a few secs and service reboots again).

What would be so much more easy, is if you can provision a new partition then just mount it in the same location, however, your device path will have to change. (if that matters)

On the other hand, if you want to change things "live" live, then you will need something like zfs
 

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MSDOSFS(5)						      BSD File Formats Manual							MSDOSFS(5)

NAME
msdosfs -- MS-DOS file system SYNOPSIS
options MSDOSFS DESCRIPTION
The msdosfs driver will permit the FreeBSD kernel to read and write MS-DOS based file systems. The most common usage follows: mount -t msdosfs /dev/ada0sN /mnt where N is the partition number and /mnt is a mount point. Some users tend to create a /dos directory for msdosfs mount points. This helps to keep better track of the file system, and make it more easily accessible. It is possible to define an entry in /etc/fstab that looks similar to: /dev/ada0sN /dos msdosfs rw 0 0 This will mount an MS-DOS based partition at the /dos mount point during system boot. Using /mnt as a permanent mount point is not advised as its intention has always been to be a temporary mount point for floppy and ZIP disks. See hier(7) for more information on FreeBSD direc- tory layout. SEE ALSO
mount(2), unmount(2), mount(8), mount_msdosfs(8), umount(8) AUTHORS
This manual page was written by Tom Rhodes <trhodes@FreeBSD.org>. BSD
October 1, 2013 BSD
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