Help activating available disk space, please.
Mike McCarty
mike.mccarty at sbcglobal.net
Wed Dec 14 19:36:47 UTC 2005
David L. Gehrt wrote:
>>On 12/13/05, Mike McCarty <mike.mccarty at sbcglobal.net> wrote:
>
> <snip>
>
>>>>=======================
>>>>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 Linu
>
> x
>
>>>>/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
>
[snip]
>
> Here is my calculations on the available partition size.
>
>>From the end of hda5 +1 (8103 Cyl) to the start of hda3 -1 (9472 Cyl)
> is 1627 Cyls. * 8225280 bytes/Cylinder divided 1 GB (1024*1024*1024)
> = 10.4870 GB
>
> [(9472-8103)*8225280/(1024*1024*1024) = 10.4870]
>
> Keep in mind that there is overhead associated with the layout of a file
> system which means there is always less space than the nominal disk
> size. Super block backups, inode numbers and sizes among other things
> influence the amount of overhead. See fs (5), dumpfs (8) and related
> man pages for more information.
I believe you made a fencepost error.
That should be (9473-8102)*8225280/(1024^3) ~ 10.5024
Mike
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