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Thread: Will this partition scheme work?

  1. #1
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    Will this partition scheme work?

    Noob here, with an Aspire One D255, N455 Atom, 1G RAM, 160G HDD. My plan is to partition the HDD so that I have one 40G partition for Win 7 Starter, one 40G for Ubuntu, and the remainder for NTFS storage so both OS can access. After comparing what Win Disk Management tells me with what GPartEd tells me, I'm not sure what I'm going to be allowed to do.



    If I understand this right, I've got sda1 and sda2 as Restore partitions that I won't/can't fool with. sda3 is where Win 7 and the other pre-installs live, in 23.41G. I'll increase that to 40, then create another partition of 40G for Ubuntu, and finally a Storage partition of ~56G (sda4 and sda5?), all out of the ~136G I have on the HDD.

    Am I seeing this correctly? Is my partition plan sound?

    And what do you suppose the 1.84M unallocated space is?

    Thanks for any help. I'm so close to pulling the trigger on this. Just want to make sure I know what I'm doing.

  2. #2
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    Ubuntu 10.10 Maverick Meerkat

    Re: Will this partition scheme work?

    That sounds like a reasonable plan. And you can always change it later.

    I'm not recommending this, but I deleted my restore and "tools" partitions to free up more space, and I tidied up my partitions with GParted before the install. Of course I created recovery discs for Windows ahead of time (and tested them, too). You don't have to do this, though. I wouldn't hesitate using that little bit of unallocated space you have.

    When you get to partioning, do you plan on creating two Linux partitions, one for "/" and the other for swap?

  3. #3
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    Re: Will this partition scheme work?

    A slightly more convenient way of doing it would be to allow a 10-15 GB for Ubuntu root and use the rest as a home partition.

    Note, however, that you cannot have more than 4 primary partitions. You need to use extended partitions for Linux if you want to slice up the hard drive any further, or create a logical volume group on the remaining free space for Linux (more flexible and versatile, but more complicated).

  4. #4
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    Ubuntu 10.04 Lucid Lynx

    Re: Will this partition scheme work?

    I hope that you understand that you can only have 4 primary partitions, and you are already using 3 of them. After shrinking sda3 (using Vista's disk tools), you will need to create an extended partition using all free space. You can then create logical partitions within the extended partition that you have created. And don't forget to make a swap partition of at least 1G.
    Break it, fix it, learn something.
    People who never make mistakes seldom make anything!

  5. #5
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    Thumbs up Re: Will this partition scheme work?

    Quote Originally Posted by samcot View Post
    That sounds like a reasonable plan. And you can always change it later.

    I'm not recommending this, but I deleted my restore and "tools" partitions to free up more space, and I tidied up my partitions with GParted before the install. Of course I created recovery discs for Windows ahead of time (and tested them, too). You don't have to do this, though. I wouldn't hesitate using that little bit of unallocated space you have.

    When you get to partioning, do you plan on creating two Linux partitions, one for "/" and the other for swap?
    If I understand your question correctly, the consensus seems to be that swap should be a separate partition, so that's probably what I'll do.

    Acer is sending me a Restore disk. I may just use up that extra space...

    Thanks for your help!

  6. #6
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    Re: Will this partition scheme work?

    Quote Originally Posted by Longstreet View Post
    Noob here, with an Aspire One D255, N455 Atom, 1G RAM, 160G HDD. My plan is to partition the HDD so that I have one 40G partition for Win 7 Starter, one 40G for Ubuntu, and the remainder for NTFS storage so both OS can access. After comparing what Win Disk Management tells me with what GPartEd tells me, I'm not sure what I'm going to be allowed to do.
    Longstreet,

    You can shrink down the Win7 partition to 40 gigs (please try to use the Windows Disk Manager for it. If you cannot shrink the partition all the way with windows tools, please defrag the windows partition before you finish the shrink with gparted.

    The you will create an extended partition call /dev/sda4 that uses the entire balance of the disk.

    Inside the extended /dev/sd4, you can create 3 or 4 partitions:

    /dev/sda4
    __/dev/sda5 - Ubuntu '/'
    __/dev/sda6 - Swap
    __/dev/sda7 - Ntfs

    OR

    /dev/sda4
    __/dev/sda5 - Ubuntu '/'
    __/dev/sda6 - Swap
    __/dev/sda7 - Ubuntu '/home'
    __/dev/sda8 - Ntfs

    Also - please do not delete the /dev/sda2 partiton - that is the windows boot partition.

    The Hedge

    Look at all those flashing lights! I'll take one!

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  7. #7
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    Re: Will this partition scheme work?

    Quote Originally Posted by deconstrained View Post
    A slightly more convenient way of doing it would be to allow a 10-15 GB for Ubuntu root and use the rest as a home partition.

    Note, however, that you cannot have more than 4 primary partitions. You need to use extended partitions for Linux if you want to slice up the hard drive any further, or create a logical volume group on the remaining free space for Linux (more flexible and versatile, but more complicated).
    I've seen the "Root/Home" partition arrangement described. Apparently it makes updates to the OS simpler, right? Not quite sure how to make that happen.

  8. #8
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    Re: Will this partition scheme work?

    Make two EXT4 partitions, a 10 gig for '/', and the rest of ubuntu space a second EXT4 for '/home'

    During the manual install, you will do this extra step:



    The Hedge



    P.S. Would you like to to post a step-by-step?
    Look at all those flashing lights! I'll take one!

    The Ubuntu Forums - our little Global Village

  9. #9
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    Jun 2009
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    Thumbs up Re: Will this partition scheme work?

    Wow, y'all are responding faster than I can keep up!

    I understand (I think) the primary/extended thing. sda4 would be the final primary, and everything else would have to be inside there as extended. It would look like the second example in Hedgehog's post (thanks for the warning about sda2, btw).

    That's a Root and Home arrangement, right? It's done that way so that any future update, if it gets wonky, affects only Root, making it easier to go back to a more stable release, correct?

    You can shrink down the Win7 partition to 40 gigs (please try to use the Windows Disk Manager for it. If you cannot shrink the partition all the way with windows tools, please defrag the windows partition before you finish the shrink with gparted
    .
    That's where the confusion comes from (I neglected to mention this earlier). I've defragged C: 3 times now, and each time I get a similar result. Windows Disk Manager tells me I only have ~60G available to shrink. That just doesn't seem right. I've had this machine for 3 weeks, have only added a few things (Chrome browser, Kindle for PC, and Avast free) and have deleted some of the preinstalled programs. There just doesn't seem any way that I could have already used that much HDD space. The numbers from Win Disk Mgmt are:

    Total size before shrink in MB 139213
    Size of available shrink space in MB 60265
    Total size after shrink in MB 78948

    There's not much I need Windows for, but there are a couple of different programs that I had hoped to retain. If, however, Win 7 Starter, which is supposed to be pretty lightweight, is going to hijack almost half of my HDD, I'm wiping the whole thing and going all Ubuntu.

    What am I missing, looking at Win Disk Mgmt vs GPartEd?

    Thanks again for the help.

  10. #10
    Join Date
    Jun 2009
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    Re: Will this partition scheme work?

    Quote Originally Posted by Hedgehog1 View Post
    Make two EXT4 partitions, a 10 gig for '/', and the rest of ubuntu space a second EXT4 for '/home'

    During the manual install, you will do this extra step:



    The Hedge



    P.S. Would you like to to post a step-by-step?
    If it's not too much trouble, that would be great!

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