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Thread: problems dualbooting windows 8 and ubuntu

  1. #1
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    problems dualbooting windows 8 and ubuntu

    long story short about windows... i bout a samsung series 5 ultra (that isnt in the list of bricked ultrabooks) that came preinstalled with windows 8, i accidently deleted some partitions when trying to fix it and eventually led to deleting all partitions and reinstalling windows 8 in uefi mode

    so, now i installed ubuntu 13.04 in uefi mode and now i cant boot into windows. i ran boot-repair and still no go. my computer loads grub and im able to see 3 windows entries (dont remember how they are exactly named) and cannot boot into any of them, they all give me an error.

    here is my url that boot-repair gave me, if anybody can have a look and help me please.

    http://paste.ubuntu.com/5649050/


    also, i have very little knowledge on how ubuntu works, therefore the installation i did was because of a tutorial i followed and saw that different tutorials would tell you to make partitions that others wouldnt tell you to make... i have a 500 gb hard drive and would only want 100 gb for windows and the rest for ubuntu. so if anybody can check my partitions (i think you can see them in the url boot-repair gives you) and tell me if i have to many ubuntu partitions or if its ok the way i have it set up (i have 50 gb for the ubuntu installation, later ill make my partition bigger)

    thanks in advance
    Last edited by mreyna16; May 10th, 2013 at 06:03 AM.

  2. #2
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    Re: problems dualbooting windows 8 and ubuntu

    It looks like Boot-Repair has installed the secure boot Linux kernel and modified boot to allow booting both Windows & Ubuntu with secure boot. Does this entry in grub let you boot Windows with secure boot on?
    menuentry "Windows UEFI bkpbootmgfw.efi" {


    UltraBooks have a small SSD for caching Windows. It uses Intel SRT which also uses RAID and causes issues. It used to be Ubuntu would not install, but now it does. But then grub will not install. It does look like you have grub installed, but may have video issues.
    UltraBooks also use dual Intel & nVidia.

    Some other Samsungs, each should be similar. The one with Series 5 did not want the Windows speeded up with the Intel SRT cache, so they installed Ubuntu's / (root) onto the SSD for quick boot. They then cannot turn Intel SRT back on.

    Intel Smart Response Technology
    http://www.intel.com/p/en_US/support...ts/chpsts/imsm
    Some general info in post #3
    http://ubuntuforums.org/showthread.php?t=2071242

    Ubuntu on hard drive, re-enable SRT post #19 details
    http://ubuntuforums.org/showthread.php?t=2129157
    Disable the RAID, it was using the Intel rapid management thingy and telling it to disable the acceleration or the use of the SSD. If you have a different system, just disable the RAID system then install Ubuntu. Once installed you can then re-enable it.
    sudo dmraid -E -r /dev/sda
    sudo dmraid -E -r /dev/sdb
    You will need to use the dmraid command prior to running the Ubuntu Installer so that it will be able to see the partitions on the drive because otherwise with the raid metadata in place it will see the drive as part of a raid set and ignore its partitions.
    Does your UEFI/BIOS have a setting to use only Intel or only nVidia graphics. No one seems to have posted exactly how they get it to work or some get nVidia settings to work and others get Intel settings to work.


    How to set NOMODESET and other kernel boot options in grub2 - both liveCD & first boot, but different
    http://ubuntuforums.org/showthread.php?t=1613132
    https://help.ubuntu.com/community/BootOptions
    Graphics Resolution- Upgrade /Blank Screen after reboot mega thread - MAFoElffen
    http://ubuntuforums.org/showthread.php?t=1743535

    nomodeset works for nVidia, but if Intel some need this, or you may need both Video and other boot parameters.

    Force Intel Video mode as boot parameter in grub menu
    video=1280x1024-24@60
    and if that doesn't work you can try
    video=VGA-1:1280x1024-24@60

    Samsung Ultrabook Windows 8 & Ubuntu & recovery boot Disk view of partitions post 7
    http://ubuntuforums.org/showthread.php?t=2097690
    Samsung Series 7 - post #5 Windows 8 & UEFI, Ubuntu only to new SSD
    http://ubuntuforums.org/showthread.php?p=12382951
    SAMSUNG Series 3 NP365E5C-XXXXX laptops
    http://ubuntuforums.org/showthread.php?t=2120763

    This converts to only Ubuntu in BIOS mode, I do not recommend it nor its partitioning scheme.
    Samsung series 5 UltraBook, erase Windows & install to SSD
    http://schoolsplay.wordpress.com/201...book-with-ssd/
    Last edited by oldfred; May 9th, 2013 at 10:44 PM.
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #3
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    Re: problems dualbooting windows 8 and ubuntu

    sorry, you lost me with all the links lol, again remember im a total noob when it comes to these things (studying for computer engineer but still have a lot of learning to do, thats why im installing linux )

    to answer some of your questions, no it doesnt let me log in to windows when enableing fast boot and no i dont have the options to change to nvdia

    will re-doing both windows 8 and ubuntu installations be easier? keep in mind i want them both in uefi mode

  4. #4
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    Re: problems dualbooting windows 8 and ubuntu

    Not fast boot, I am not sure you should ever turn that back on.
    But turn on secure boot.
    Can you boot from UEFI menu directly to either Windows or Ubuntu. Windows entry may actually boot into grub menu as it looks like boot repair did the rename for those systems that only boot Windows in secure boot mode.
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  5. #5
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    Re: problems dualbooting windows 8 and ubuntu

    Quote Originally Posted by oldfred View Post
    Not fast boot, I am not sure you should ever turn that back on.
    But turn on secure boot.
    Can you boot from UEFI menu directly to either Windows or Ubuntu. Windows entry may actually boot into grub menu as it looks like boot repair did the rename for those systems that only boot Windows in secure boot mode.
    that worked! thanks oldfred! i will mark this thread as solved

    off topic question: i was reading fedora 18 is very stable compared to ubuntu 12.04+ and although im not trying to get flamed for posting this in the wrong thread non the less in the ubuntu forums but how true is this?


    EDIT: how do i mark it as solved?

  6. #6
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    Re: problems dualbooting windows 8 and ubuntu

    Glad that worked.

    Do not know about Fedora. I like to install different versions in another 10 to 25GB but have not installed Fedora. I think for UEFI it now uses a newer version of shim.

    Matthew Garrett
    http://www.zdnet.com/linux-developer...es-7000011094/
    James Bottomley's random Pages - Linux Foundation Secure Boot System Released
    http://blog.hansenpartnership.com/li...stem-released/
    http://blog.hansenpartnership.com/ow...uefi-platform/


    Screen shots of current work around for closing, more info in thread in my signature.

    https://wiki.ubuntu.com/UnansweredPo.../SolvedThreads
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  7. #7
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    Re: problems dualbooting windows 8 and ubuntu

    Quote Originally Posted by oldfred View Post
    Glad that worked.

    Do not know about Fedora. I like to install different versions in another 10 to 25GB but have not installed Fedora. I think for UEFI it now uses a newer version of shim.

    Matthew Garrett
    http://www.zdnet.com/linux-developer...es-7000011094/
    James Bottomley's random Pages - Linux Foundation Secure Boot System Released
    http://blog.hansenpartnership.com/li...stem-released/
    http://blog.hansenpartnership.com/ow...uefi-platform/


    Screen shots of current work around for closing, more info in thread in my signature.

    https://wiki.ubuntu.com/UnansweredPo.../SolvedThreads
    Is newer version of shim better? Again, sorry but im a noob for these things

  8. #8
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    Re: problems dualbooting windows 8 and ubuntu

    I think the link above says shim is going to be obsoleted.
    Matthew Garrett who was (or is ) from Redhat worked on shim but now Linux Foundation has its own key to install. And Garrett says shim will be merged with that version. It is a complicated process so a lot of work has to be done to make it somewhat easier for you to manage your own keys.
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  9. #9
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    Re: problems dualbooting windows 8 and ubuntu

    Quote Originally Posted by oldfred View Post
    I think the link above says shim is going to be obsoleted.
    Matthew Garrett who was (or is ) from Redhat worked on shim but now Linux Foundation has its own key to install. And Garrett says shim will be merged with that version. It is a complicated process so a lot of work has to be done to make it somewhat easier for you to manage your own keys.
    I have decided to stay with ubuntu but since this install that you have helped me with was in a way a trial and error thing. i feel confident that i can make my own install of ubuntu again and the main reason why im going to do that is to redo all the partitions the way they are supposed to be and to give them the proper size. that being said, i have a 500 gb hard drive and one 22 gb ssd drive (which i know we dont need for the ubuntu installation) and i want to leave 100 gb for windows including the partitions it makes (in other words since windows 8 makes other partitions such as recovery my main c: drive will have less than 100 gb) and the other 400 for ubuntu and its partitions.

    so, what partitions do you recommend i make in the 400 space, primary or not primary, and what size? if i didnt mention something in particular let me know what else you would add or take into consideration with the 400 gb space

  10. #10
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    Re: problems dualbooting windows 8 and ubuntu

    I was reading on another thread you were commenting and saw that in linux we can use the ssd to also speed it up...

    So id like to add that i have a 22gb ssd and if possible make it to work with windows and linux... I have 4gb of ram so you can considerhow much space i need for the swap partition

    Id also like to add that i might make a specific partition so i can use all my files (music, pictures, videos, etc) just like u have it

    Again, thanks for your help!

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