how to transfer data from one hda to another hda partition?

[naishi]

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hi any expert,
I have several partitions in a hard disk, say, hda1 and hda2 as well as hda3, and now I create a big amount of data in hda1, because there is more space in hda3 unused, so I hope to transfer my data file to hda3 from hda1,
(1)how to do that?
(2)how to write my data directly when i run my program in the terminal?
any help will be appreciated greatly?
Thanks!
Phil

[vonbiber]

(1)
first you need to mount the target partition
say, you want to move/copy some files from your current mounted partition
to the partition /dev/hda3:
a. create a mount point if it doesn't already exist, mount /dev/hda3 to that
mount point:

mkdir -p /mnt/hda3; mount /dev/hda3 /mnt/hda3

b. if the commands above were successful
you can now copy/move the files from your current partition to
/mnt/hda3

(2) you do step a. and output to /mnt/hda3/wherever_subfolder_you_want

replace hda3 by whatever destination partition you want to use

When you are done, don't forget to unmount the partition:

umount /mnt/hda3

[devils casper]

(1)how to do that?
(2)how to write my data directly when i run my program in the terminal?

Its very simple. Just mount hda3 partition and move data of hda1 to hda3.

Let say, hda3 has ext3 filesystem :
Execute this in Terminal

su -
mkdir /media/hda3
mount -t ext3 /dev/hda3 /media/hda3
chown -R user_id:group_id /media/hda3

Above code will mount hda3 partition at /media/hda3. chown command will give read/write access to Regular user for data transfer.
Execute id command as Regular User to confirm user_id and group_id.

If you have any confusion, post the output of fdisk -l command here.

su -
fdisk -l

* Its small L in fdisk -l.

[naishi]

hi thanks so much!