couldnt install ubuntu inside windows

Asked by Ananth

When installing inside windows after extraction and restarting and going inside ubuntu installation its saying "No root files defined. Correct this from partitioning menu" and installing not proceeding after wards. how to resolve?

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Algimantas Margevičius (gymka) said :

are you sure that in installation you selected "C:" drive? not custom or not existing drive?

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Ananth (jk-ananth) said :

ya i selected c: drivw

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bcbc (bcbc) said :

This is caused by:
1. minor partition table errors
2. an unsupported raid (e.g. 0 or 1+0)
3. a disk with leftover GPT data e.g. a disk previously used on a mac

You can fix the first with a partitioning tool. You should know if you have a raid for the second. And the third might be tough unless you know your disk came from a Mac previously or was used for GPT

If you proceed with the install until the error, drop to a terminal Ctrl+Alt+F2 and run:
sudo parted -l
(lower case -L) it will tell you if there are partition table errors

If you run:
sudo fdisk -l
you may be able to see the errors and it will say if there is GPT data

sudo blkid
should give some idea if there are problems identifying the disks/partitions (as in an unsupported fakeraid). All commands case sensitive.

To exit type:
sudo reboot

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Ananth (jk-ananth) said :

how to correct the partition table erroe wit partition tool

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bcbc (bcbc) said :

The partition tool should tell you what's wrong and be able to fix it. I'm not a partition table expert. If you can confirm what the problem is then I'll look for some references for you.

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