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Thread: Can't boot from live media

  1. #1
    Join Date
    Aug 2009
    Location
    Guadalajara, Mexico
    Beans
    9
    Distro
    Ubuntu 9.04 Jaunty Jackalope

    Can't boot from live media

    Hey everyone.

    I've a 2007 Aluminum iMac, 24' with a 2 Tb HD and a 350 Gb Firewire 800 drive. Apparently the CD drive is busted and keeps rejecting every single disk I feed it.

    I've tried running LiveUSBs and using the Firewire drive too as Live Media but I just can't get anywhere. With Unetbootin with the syslinux fix, I get to boot both Kubuntu 13.10 64bit and Mint Petra 64bit, but everything stops after a few minutes and I get dropped into GRUB with the error:

    BuzyBox V1.20.2 (Ubuntu 1:1.20.0-8ubuntu1) built-in shell (ash)
    Enter 'help' for a list of built in commands.


    (initramfs) unable to find a medium containing a live file system.

    I've tried changing the boot parameters to direct it to sdb1 but I get the same results.

    I also tried Mac Linux USB Loader and with my 8GB US drive the iMac just won't recognize it as bootable, and when using the firewire drive I get this error:

    Welcome to Enterprise! Version 0.1
    Distribution family (null) is not supported
    Cannot continue because core files are missing. Restarting...

    Any ideas?
    Last edited by jorgeblasio; February 23rd, 2014 at 04:50 AM.

  2. #2
    Join Date
    Aug 2009
    Location
    Guadalajara, Mexico
    Beans
    9
    Distro
    Ubuntu 9.04 Jaunty Jackalope

    Re: Can't boot from live media

    C'mon, I can't be the only person with this problem...

  3. #3
    Join Date
    Mar 2005
    Location
    Christchurch, England
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    153
    Distro
    Ubuntu Development Release

    Re: Can't boot from live media

    I can't boot ubuntu on my iMac (21.5, mid-2010). Like you, all media is rejected.
    My internal DVD has failed. An external DVD won't boot from DVD.
    The only (partial) success I've had with linux on iMac is to put fedora (20) on USB. Runs well but has radeon video driver issues.
    It will boot OK and install - CAREFUL - it might also set itself to boot in preference to OSX.
    To get OSX back you press Alt during boot and select Recovery image, then set Startup disk from Apple menu.

    I think only fedora has a UEFI-boot-compatible image. (Maybe Archboot will do it too?).
    I think this is probably a fail for linux packagers.
    Windows is going exclusively UEFI-boot so recent PCs are set to UEFI mode in BIOS.
    Linux live DVDs should be set to UEFI boot, or at least have a UEFI boot version.
    I note that clonezilla is now UEFI (and Secure boot) compatible, so it can be done.
    Windows is cheap, but linux is free

  4. #4
    Join Date
    Sep 2013
    Beans
    47

    Re: Can't boot from live media

    I have a mid-2011 12,1 that I can't use the dvd or usb media. My 'superdrive' is hosed so I have a samsung se-208ab/tsbs. I have burned 6 dvd's and all work on PC's but not my imac. I have also burned several different usb sticks following http://www.ubuntu.com/download/deskt...dvd-on-mac-osx with no joy, I get errors saying “the disk you inserted was not readable buy this computer”.

    The manual approach i get a message that the ‘drive’ was not readable after step 9
    but the resulting usb stick works on pc’s… so that manual approach does not work??


    Both dvd and usb stick work on a pc but neither do any good things on my iMac …


    I have refind installed on the iMac I understand the usb not booting sort of, it is not ‘bootable’ for mac? but I thought the dvd would work.

    scott

    EDIT:
    I'm using Mavericks OSX 10.9.2
    Model Name: iMac
    Model Identifier: iMac12,1
    Processor Name: Intel Core i5
    Processor Speed: 2.7 GHz
    Number of Processors: 1
    Total Number of Cores: 4
    L2 Cache (per Core): 256 KB
    L3 Cache: 6 MB
    Memory: 12 GB
    Boot ROM Version: IM121.0047.B1E

    I made a little progress, I can get the machine to boot but with a black screen after "booting to blind mode". Try here:
    http://www.makeuseof.com/tag/how-to-...k-on-your-mac/

    scott
    EDIT The external monitor did not help with my iMac-it is just stubborn.
    Last edited by wn1ytw; March 19th, 2014 at 04:22 PM. Reason: os

  5. #5
    Join Date
    Mar 2005
    Location
    Christchurch, England
    Beans
    153
    Distro
    Ubuntu Development Release

    Re: Can't boot from live media

    I may have a partial answer to DVD not booting from internal drive...?
    My iMac (21.5,mid-2010, version 11,2) would not recognize any DVD media in internal drive containing linux boot media. Now it does recognize some boot media.

    I reset the PRAM, as advised by Apple when you get drive problems, but the difference is I did it several times.

    You reboot the iMac and hold down cmd-Alt-P-R before the first chime. Keep the keys pressed and the iMac reboots twice more, chiming each time. The fourth and final reboot (and chime) happens after about another 2 mins wait. Release the keys and let the iMac boot normally. Mine took several minutes to get to desktop after this.
    Results
    Distribution before PRAM reset after PRAM reset
    Archboot desktop reads DVD, DVD undetected at boot desktop reads DVD, DVD boot succeeds
    ubuntu 14.04 desktop rejects DVD as unreadable desktop fails to mount DVD, DVD detected at boot but 'No bootable device'
    supergrub 2 desktop reads DVD, DVD boot fails desktop reads DVD, DVD detected at boot but 'No bootable device'
    clonezilla desktop reads DVD, DVD boots OK desktop reads DVD, DVD boots OK
    20140114

    So Archboot DVD can now be booted (it wasn't possible before).
    ubuntu 14.04 is accepted as readable on desktop, but not mountable or bootable, and supergrub2 can now be detected at boot time (but is not bootable).
    This is better than before - just leaves the problem of most linux installers not being bootable on UEFI system. clonezilla seems to have solved this!
    Windows is cheap, but linux is free

  6. #6
    Join Date
    Mar 2005
    Location
    Christchurch, England
    Beans
    153
    Distro
    Ubuntu Development Release

    Re: Can't boot from live media

    I see the spaces for my table are removed on posting:
    Results
    distribution
    before PRAM reset after PRAM reset (4 times)
    Archboot desktop reads DVD, DVD undetected at boot desktop reads DVD, DVD boot succeeds
    ubuntu 14.04 desktop rejects DVD as unreadable desktop fails to mount DVD, DVD detected at boot but 'No bootable device'
    supergrub2 desktop reads DVD, DVD undetected at boot desktop reads DVD, DVD detected at boot but 'No bootable device'
    Clonezilla 20140114 desktop reads DVD, DVD boots OK desktop reads DVD, DVD boots OK
    Windows is cheap, but linux is free

  7. #7
    Join Date
    Sep 2013
    Beans
    47

    Re: Can't boot from live media


  8. #8
    Join Date
    Nov 2009
    Beans
    Hidden!

    Re: Can't boot from live media

    I would like to ask if you are certain that you downloaded a PowerPC .iso.

    https://wiki.ubuntu.com/PowerPCDownloads

    Thanks,

  9. #9
    Join Date
    Sep 2013
    Beans
    47

    Re: Can't boot from live media

    NO. I'm sorry, I was not and am not looking at the PowerPC at all, the new intel imac. Sorry for any confusion, I had hoped that link might be helpful but nothing specific.

  10. #10
    Join Date
    May 2005
    Beans
    98
    Distro
    Ubuntu Gnome 13.10 Saucy Salamander

    Re: Can't boot from live media

    I just got this problem as well with the Saucy 13.10 Live USB on a SanDisk thumbdrive. It gets to the purple screen, then BusyBox v1.20.2 with the (initramfs) error. My system has a Gigabyte GA-970A-DS3P motherboard with a nvidia GEFORCE GT640 video card. I've been able to use this same USB thumbdrive to boot/install on other systems with MSI motherboads. It's just this Gigabyte motherboard that I have a problem with. It's like the mobo's BIOS is ok with the SandDisk thumbdrive, because it actually gets to the thumbdrive to start the boot process. But then once you get into the purple screen it loses access to the thumbdrive and doesn't see the initramfs anymore. Anybody have a solution, or is this just a crappy motherboard?

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