Correct partition plan for ubuntu 12.04?

[Halpm]

Hello all,
I'm an absolute beginner at linux, newly converted from mac. I was trying to delete partitions to completely reformat an external hard disk using GParted, and I'd deleted a couple before I realised that I wasn't deleting partitions on my external drive, but on my system drive. I've included a screenshot from GParted to show what the partitions on the boot disk look like now - and what I'm really interested in is finding out how I can rebuild them with out having to reformat my disk, and reinstall my OS and all my applications. Hope some of you wise old (wo)men can help me out here

Edit: The computer still boots, but it tells me on bootup that discs aren't ready, and that I can either wait, press S to skip mounting or M to do something manually.

[oldfred]

Welcome to the forums.

You should be able to use testdisk from a liveCD to see old partitions.

If not rebooted recover partition:
http://ubuntuforums.org/showpost.php...7&postcount=34

enable the "universe" repository to download testdisk
System>Administration>Software Sources>Ubuntu Software.

Instructions
http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step
http://www.cgsecurity.org/wiki/Menu_Analyse
http://www.cgsecurity.org/wiki/TestD..._file_for_NTFS

repairs including testdisk info & links
http://members.iinet.net.au/~herman546/p21.html
https://help.ubuntu.com/community/Da...st%20Partition

[ub07]

I dual boot with Windows (which you apparently do not), and my partition scheme looks roughly like this:

NTFS (150 Gb)

/boot (150 Mb)

/swap (12 Gb)

/ (88 Gb)

/home (100 Gb)

[NikTh]

I dual boot with Windows (which you apparently do not), and my partition scheme looks roughly like this:

NTFS (150 Gb)

/boot (150 Mb)

/swap (12 Gb)

/ (88 Gb)

/home (100 Gb)

I think that so much swap (12GB) its wasted space.

[Miljet]

From your screen shot, it looks like possibly all you have deleted is your swap partition and the system is complaining that a swap partition isn't available on boot up. I would try creating a new swap before trying anything else.

Bear in mind that the newly created swap will probably have a different UUID and your /etc/fstab file will have to be edited.

[Halpm]

Ok guys - I think I've got the partition fixed - but it still doesn't recognise it at startup. Miljet said something about a /etc/fstab file. What's the story with that?

[oldfred]

Understanding fstab
https://help.ubuntu.com/community/Fstab
https://help.ubuntu.com/community/Mount/
https://help.ubuntu.com/community/FilePermissions
http://www.psychocats.net/ubuntu/mountlinux

sudo cp /etc/fstab /etc/fstab.backup
gksudo gedit /etc/fstab
# Anytime you edit fstab always do this before rebooting. If no errors it just remounts everything, but if errors you have to fix before rebooting or you may not be able to:
sudo mount -a

If you are creating a new swap and want to know its UUID.

sudo blkid -c /dev/null -o list

Ownership and permissions of vfat / ntfs are set at the time of mounting. This is often a source of confusion.
http://www.psychocats.net/ubuntu/mountwindowsfstab
HOWTO: Mount NTFS partitions with specific ownership/permissions - WorMzy
http://ubuntuforums.org/showthread.php?t=1604251

http://ubuntuforums.org/showthread.php?t=1983336
suggest using templates instead. Post #6