Help activating available disk space, please.
jvian10 at charter.net
Thu Dec 15 01:14:22 UTC 2005
On Wed, 2005-12-14 at 08:42 -0700, Robin Laing wrote:
> Nat Gross wrote:
> > Hi;
> > When I think of disk partions, I shiverrrrrrrr. BUT, I need to make
> > use of disk space I know I have but need to make this safely. Please
> > adivse.
> > Following, is the result of fdisk -l:
> > =======================
> > Disk /dev/hda: 80.0 GB, 80026361856 bytes
> > 255 heads, 63 sectors/track, 9729 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> > Device Boot Start End Blocks Id System
> > /dev/hda1 * 1 13 104391 83 Linux
> > /dev/hda2 14 3837 30716280 83 Linux
> > /dev/hda3 9473 9726 2040255 82 Linux swap / Solaris
> > /dev/hda4 3838 9472 45263137+ 5 Extended
> > /dev/hda5 3838 8102 34258581 83 Linux
> > Partition table entries are not in disk order
> > ==========================================
> > [First] Does this mean that I have but one drive? (thought I had two.)
That is hda, so only one drive unless there was some fdisk -l output you
did not include.
> > Now, based on the following output from df, I *think* that hda4 is
> > available for use.
hda4 is the extended partition and cannot be used directly.
hda5 is a partition within the extended area of hda4, but it ends at
cylinder 8102. You have unused space between 8103 and 9472 (inclusive).
> > If so, how do I verify thats its empty, if it has a filesystem, and
> > why is its block count larger than hda5 which brings the total gigs to
> > far more than the 80G the drive has.
If you want another partition just run fdisk and create it from the
available space. If you want to enlarge hda5 you can use parted or
qtparted to extend the partition into the empty space then use resize2fs
to expand the filesystem to fill the new space.
> > df -h
> > =================================
> > Filesystem Size Used Avail Use% Mounted on
> > /dev/hda2 29G 26G 2.3G 92% /
> > none 506M 0 506M 0% /dev/shm
> > /dev/hda5 33G 21G 11G 66% /usr
> > =============================================
I would assume that /dev/hda1 is the boot partition (/boot), but it is
not mounted so it does not show in the df output (and may not be used).
> > df
> > ===========================================
> > Filesystem 1K-blocks Used Available Use% Mounted on
> > /dev/hda2 30233928 26342300 2355816 92% /
> > none 517176 0 517176 0% /dev/shm
> > /dev/hda5 33720764 21005124 11002712 66% /usr
> > ===============================================
> > Thank you, all.
> > -nat
> I am going to make another suggestion.
> At the cost of hard drives, I would purchase a new drive and put that
> If you have a second drive, then it isn't being used at all. It would
> most likely be /dev/hdb*. What happens if you run "fdisk /dev/hdb" ?
fdisk -l will list all the drives on the system regardless of whether
used or not.
> Drive space is cheap enough today to add extra drives where needed. I
> have one drive for just temp backups.
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