incorrect msdos partition size

by Norman L. Alderm » Sun, 30 Apr 1995 04:00:00

When my friend and I installed Linux on my machine, we used fdisk on linux
to resize all the partitions. These seemed to work perfectly. In fact I
didn't even have to reinstall my programs in my dos partition because they
were all still there (My dos partition wasn't very full). Dos doesn't complain
but I have noticed that fdisk under linux and dir on dos both claim that
the dos partition is much larger than it is. My disk is a 1 gig scsi. We
repartitioned it to 600 dos, 400 linux. Now dir and fdisk should show my
dos partition to be 600 megs but they show it to be 1 gig. Why is this? Is
this a potential problem or just a mild annoyance?

-L

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1. fdisk and cfdisk giving incorrect partition size information

Hi all,

For a long time, only about 8GB of the 30GB IDE hard disk in my RH 7.2
machine was being used in several partitions, with 22GB of free space
hanging off an extened partition. I attempted to create a new logical
partition, using cfdisk, out of the free space.

After the partition information was 'written', cfdisk gave me an error
of the sort "Can't re-read new partion table. Please reboot.." After
rebooting and mounting the new partition (hda7), here's the output of
'df':

Filesystem 1k-blocks Used Available Use% Mounted on
/dev/hda1 505605 456124 23377 96% /
/dev/hda3 1004052 18620 934428 2% /home
none 127228 0 127228 0% /dev/shm
/dev/hda2 4032124 1905176 1922120 50% /usr
/dev/hda5 505605 58967 420534 13% /var
/dev/hda7 38859 13 36840 1% /da

Here is the output of print table cmd of fdisk /dev/hda:

Device Boot Start End Blocks Id System
/dev/hda1 * 1 65 522081 83 Linux
/dev/hda2 66 575 4096575 83 Linux
/dev/hda3 576 702 1020127+ 83 Linux
/dev/hda4 703 3647 23655712+ 5 Extended
/dev/hda5 703 767 522081 83 Linux
/dev/hda6 768 832 522081 82 Linux swap
/dev/hda7 833 3647 22611456 83 Linux

cfdisk gives the same information.

Can anyone tell me what's going on here? Why the different partition
sizes being reported?

Thanks.

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