swap partition change

what is the size of your swap partition ? If you have 1Gb, or more, no need to have more swap.

What happen if I put plus memory into my notebook?
You feel it more efficient :)

It's an old notebook, and it has 256 MB ram I wanna add and other one 256MB modul.
The swap size is 300MB and I thought the OS needs the same swap size like op.memory.

I mean "what happen" can Ubuntu manage the ram changing...

> I want to change the size of the swap partition.
> Is it possible to do it, or I should reinstall the system....?

It is possible to change the swap size, you don't need to reinstall Ubuntu to do so.

> What happen if I put plus memory into my notebook?

Ubuntu should recognize the new RAM automatically.

> I thought the OS needs the same swap size like op.memory.

No, it doesn't.

To be honest, I wouldn't change the swap size on your system, 512 MB RAM + 300 MB swap sounds good for me.

If you really want to change your swap size, you need to follow those steps:

1- turn off swapping with the "swapoff" command
2- if needed, make some free space on your harddisk by resizing your data existing partitions
3- delete your swap partition and recreate a bigger one (or simply add a second swap partition)
4- turn on swapping with the "swapon" command

Sebastien.

Thank you Sebastien,

I'm a new user of Ubuntu and I don't know how can I do the steps above...
how can I delete the swap and make a new without deleting my else partitions?

First of all, you must be careful when you play with partitions. An error can cost you all your data. I would suggest that you take a backup of your system before doing so.

There's an application called "gparted" that you can use to create/remove/resize your partition easily. you can install it with the following command:

    sudo apt-get install gparted

You can then start it from the "System" -> "Administration" -> "Partition editor" menu option on the Gnome panel.

Hope that helps.
Sebastien.