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I have a 64-bit laptop with windows 10 installed.
I am using this everydaylinuxuser tutorial to install Ubuntu.

When I come to point of selecting the drive to install Ubuntu on I'm not able to do this.

that + sign is disable.please help.

Zanna
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Varun Kamani
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  • You need to create a partition first if you do manual partitioning. – Pilot6 Feb 04 '17 at 11:01
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    Possible duplicate of How do I install Ubuntu? – Pilot6 Feb 04 '17 at 11:01
  • @Pilot6 It's not a duplicate of the question you suggested. The question you mentioned is about installing Ubuntu alongside a non-UEFI OS like WindowsXP. – Manish Kumar Bisht Feb 04 '17 at 11:54
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    It seems that your disk has MBR partition table and that already contains four primary partitions, which is maximum allowed and does not let you create more partitions for Ubuntu. The only way to continue would be: Backup the contents of sda3 and sda4, delete those partitions, create extended partition in the free space and logical partitions for the former contents of sda3 and sda4. Then install Ubuntu. Or install Ubuntu on sdb, if that is an option. – ridgy Feb 04 '17 at 11:54
  • @ridgy I think you are right.Thanks for suggesting.can you tell me exactly what I should do? – Varun Kamani Feb 19 '17 at 18:15
  • @Pilot6 This is not duplicate question – Varun Kamani Feb 19 '17 at 18:21
  • You need to create a partition first by gparted. – Pilot6 Feb 19 '17 at 19:00
  • More a duplicate of this: My laptop already has 4 primary partitions: how can I install Ubuntu? http://askubuntu.com/questions/149821/my-laptop-already-has-4-primary-partitions-how-can-i-install-ubuntu – oldfred Feb 19 '17 at 19:17
  • @Pilot6 can you mention whole process that you want to share with us? – Varun Kamani Feb 20 '17 at 13:11

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There are some (free) Windows programs to make logical partitions out of primary ones, see e.g AOMEI, MACRORIT or EaseUS. I never used one of them, so I cannot tell how secure they are. There is also a video tutorial - and many more of them.

If you find one of that useful, run it from windows, then convert the partition after the free space (in your image: sda3) to logical, which will create an extended partition containing the logical partitions sda3and sda4. Try to decrease the size of the last partition (as there are ~100G free), so you have free space in the extended partition - and Ubuntu should present this as possible for installation.

And always be sure to have a valid backup of your valuable data!

ridgy
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