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I have iso image for Ubuntu 11.0.4 on a CD. My OS is windows XP. I have 3 partions c, E and F. Windows is installed on C, and F has data. E is empty drive. Now, after I start installation , I choose the third option. Then click forward and I am shown three figures --

/dev/sda1 52427(total)/50931(used)

/dev/sda5 52427(total)/3221(used) 

-- surprised, since it should be empty. I had used wubi to install earlier but have uninstalled.

/dev/sda5 215206(total)/37545(used)

Now, it means I need to choose sda5. Now how should I go about creating 3 partions for /(root), /home and /swap. Click edit partion and give size for each of them?

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migrated from Apr 30 '11 at 16:18

This question came from our site for system and network administrators.

/dev/sda1 means the first primary partition on the first SATA-controller (it would be sdb1 on the second controller and hda1 on an IDE-controller). You can only have 4 primary partitions, so the first logical partition is sda5. Look under "Control Panel - Administrative Tools - Computer Management" in windows to see what partitions you have and if they are empty. You don't have to install Ubuntu on 3 seperate partitions, this is a recommendation. If your computer has kind of up to date hardware you don't need a swap partition either...

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For performance and dependency reasons, regular installations are preferred over Wubi installations. The Wubi installation will be installed over a NTFS partition.

The drive letters do not have to match the partition in order. The second partition could be E as well, you'd better check the size to identify the partition. After identified the E drive, remove it and boot from a LiveCD / LiveUSB to do a regular installation.

Consider this partition scheme:

  • / (root): 30GB
  • swap: depends on your usage, do not over twice your RAM
  • /home: everything that's left. Documents and settings will go in here.
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