What should I do when no root file system is defined during installation?

Question

enter image description here NOTE: please be careful to think this question as duplicate.

the guide does not mention this step. I have read the similar question but it does not help.

It seems that I should partition my disk first. but how?

Is there some buttons to partition? I do not know how does this picture come up:

enter image description here

looks like I miss something.

Thank you in advance.

did you want to partition your drive,then exit the ubuntu installer and then install gparted by running sudo apt-get update and sudo apt-get install gparted on terminal. — Avinash Raj, Dec 23, 2013 at 4:28

d a i s y · Accepted Answer · 2017-09-14 09:16:19Z

1

See the advanced partition tool for more control in the above dialog box.

In the next step It will ask for swap space, which you can skip.

d a i s y

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answered Dec 23, 2013 at 4:06

Rakesh Godhala

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thank you but I really donot know what you are talking about.which button shoul I hit? "mount it as root", what does "it" refer to?
– tcpiper
Dec 23, 2013 at 4:13
I guess you are using advanced partition tool ? In that case, you can create new partition from free space, select ext4 format and below it in the dialog box itself ,there will be an option "Mount". click on that option and mount it as "/"
– Rakesh Godhala
Dec 23, 2013 at 4:15
I am not sure. I chose "something else". Because the other choice is replace the windows 8, which obviously is not the choice.
– tcpiper
Dec 23, 2013 at 4:18
I have tried that to. but there are only two free spaces, one is 1MB ,the other is 0MB. I type 30720 MB and failed in both.
– tcpiper
Dec 23, 2013 at 4:19
there simply no 'advanced partition tool' button. I will show you that in a new question. hold on
– tcpiper
Dec 23, 2013 at 4:23

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