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Thread: USB live media boot error

  1. #1

    Exclamation USB live media boot error

    Dear all,

    I burned opensuse 13.1 live iso to USB 8GB pendrive using dd:

    Code:
    dd if=<isofile> of=/dev/sdb bs=4M && sync
    At boot, I get some "Assuming write though" errors and various other, and gives a 120 second reboot timeout.

    I also tried "Verify" rather than "Live Boot" at gfx boot prompt. It said iso verification failed. Hoever, I was able to run the same ISO file with KVM and worked fine.
    Once I boot the live media, it seems I need to redo "dd" again, since the drive is not anymore detected as bootable. Opensuse is trying to do something on the live USB media - like creating some other paritions. (probably a boot flag need to be switched but that not the main problem).

    I think this problem is somehow specific to *me* since I also tried burning arch linux on the same drive with dd, but it also failed telling it cant mount so and so things. My media is fresh - I just bought it today!

    I also tried doing this on a 4GB microSD connected through my phone, using both dd and unetbootin - both failed. Its weird because I've done this a 1000 times - and that was just about 6 months back. What has changed so much ???

    Here is the photo of the errors it showed: http://imgur.com/jOhM5yl

    Please help me fix the issue.


    --
    Thanks and Regards,
    Aurabindo J

  2. #2

    Default AW: USB live media boot error

    Quote Originally Posted by aurabindo View Post
    Dear all,

    I burned opensuse 13.1 live iso to USB 8GB pendrive using dd:

    Code:
    dd if=<isofile> of=/dev/sdb bs=4M && sync
    At boot, I get some "Assuming write though" errors and various other, and gives a 120 second reboot timeout.

    I also tried "Verify" rather than "Live Boot" at gfx boot prompt. It said iso verification failed. Hoever, I was able to run the same ISO file with KVM and worked fine.
    Once I boot the live media, it seems I need to redo "dd" again, since the drive is not anymore detected as bootable. Opensuse is trying to do something on the live USB media - like creating some other paritions. (probably a boot flag need to be switched but that not the main problem).

    I think this problem is somehow specific to *me* since I also tried burning arch linux on the same drive with dd, but it also failed telling it cant mount so and so things. My media is fresh - I just bought it today!

    I also tried doing this on a 4GB microSD connected through my phone, using both dd and unetbootin - both failed. Its weird because I've done this a 1000 times - and that was just about 6 months back. What has changed so much ???

    Here is the photo of the errors it showed: http://imgur.com/jOhM5yl

    Please help me fix the issue.
    What version did you download exactly?
    I remember such a problem (the LiveCD self-destructed on first boot) with the 13.1 Beta versions.

    Maybe post the filename of the ISO file you downloaded.

  3. #3

    Default Re: AW: USB live media boot error

    Quote Originally Posted by wolfi323 View Post
    What version did you download exactly?
    I remember such a problem (the LiveCD self-destructed on first boot) with the 13.1 Beta versions.

    Maybe post the filename of the ISO file you downloaded.
    I downloaded Gnome Live. File name: openSUSE-13.1-GNOME-Live-x86_64.iso

    I checked my downloaded ISO sha1 sum and it is different from the one mentioned in the opensuse download page. But I cant believe it, since the same file worked fine in KVM. If the file was corrupt, is it supposed to work ? Also, after downloading, I did isohybrid on the file. May be this might have changed the file. One more reason is that a recent Arch linux ISO file also failed to boot with the dd way.

    Anyways I'm gonna download a fresh copy and try again.

    Thanks for the reply wolfi323

  4. #4
    Join Date
    Feb 2009
    Location
    Spain
    Posts
    25,547

    Default Re: USB live media boot error

    On 2014-02-20 14:36, aurabindo wrote:

    > supposed to work ? Also, after downloading, I did *isohybrid* on the
    > file.


    DON'T!

    The instructions specifically say NOT to use isohybrid on 13.1. you
    destroyed your image. Download it again.


    --
    Cheers / Saludos,

    Carlos E. R.

    (from 13.1 x86_64 "Bottle" (Minas Tirith))

  5. #5

    Default Re: USB live media boot error

    Quote Originally Posted by aurabindo View Post
    Also, after downloading, I did isohybrid on the file. May be this might have changed the file.
    The openSUSE Live ISOs _are_ already hybrid ISOs. If you run isohybrid on them you might destroy them.

    Just copy the ISO as it is to the USB drive (with dd f.e. or SUSE imagewriter), and it should work.

  6. #6

    Default Re: USB live media boot error

    wolfi323 wrote:
    > aurabindo;2626014 Wrote:
    >> Also, after downloading, I did *isohybrid* on the file. May be this
    >> might have changed the file.

    > The openSUSE Live ISOs _are_ already hybrid ISOs. If you run isohybrid
    > on them you might destroy them.


    I know nothing about it but why doesn't isohybrid detect the case and
    avoid damage? It seems to be a perl program ...

    > Just copy the ISO as it is to the USB drive (with dd f.e. or SUSE
    > imagewriter), and it should work.


  7. #7

    Default Re: USB live media boot error

    Quote Originally Posted by djh-novell View Post
    wolfi323 wrote:
    > aurabindo;2626014 Wrote:
    >> Also, after downloading, I did *isohybrid* on the file. May be this
    >> might have changed the file.

    > The openSUSE Live ISOs _are_ already hybrid ISOs. If you run isohybrid
    > on them you might destroy them.


    I know nothing about it but why doesn't isohybrid detect the case and
    avoid damage? It seems to be a perl program ...
    Well, I don't know either, but maybe it's not that easy to detect whether the ISO is already hybrid or not.
    Or maybe this has just been forgotten or the developers don't think it's necessary.

  8. #8
    Join Date
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    16,286

    Default Re: USB live media boot error

    I believe the methodology id different. So detection may require the iso hybrid people to know what to look for.

  9. #9
    Join Date
    Feb 2009
    Location
    Spain
    Posts
    25,547

    Default Re: USB live media boot error

    On 2014-02-20 19:36, wolfi323 wrote:
    >
    > djh-novell;2626049 Wrote:



    >> I know nothing about it but why doesn't isohybrid detect the case and
    >> avoid damage? It seems to be a perl program ...
    >>

    > Well, I don't know either, but maybe it's not that easy to detect
    > whether the ISO is already hybrid or not.
    > Or maybe this has just been forgotten or the developers don't think it's
    > necessary.


    Many Linux tools allow you to shoot your own foot with not even a
    warning. You are the human in control, so do control >:-)

    --
    Cheers / Saludos,

    Carlos E. R.

    (from 13.1 x86_64 "Bottle" (Minas Tirith))

  10. #10
    Join Date
    Nov 2013
    Location
    Kamloops, BC, Canada
    Posts
    4,029

    Default Re: USB live media boot error

    Quote Originally Posted by robin_listas View Post
    On 2014-02-20 19:36, wolfi323 wrote:
    >
    > djh-novell;2626049 Wrote:



    >> I know nothing about it but why doesn't isohybrid detect the case and
    >> avoid damage? It seems to be a perl program ...
    >>

    > Well, I don't know either, but maybe it's not that easy to detect
    > whether the ISO is already hybrid or not.
    > Or maybe this has just been forgotten or the developers don't think it's
    > necessary.


    Many Linux tools allow you to shoot your own foot with not even a
    warning. You are the human in control, so do control >:-)

    --
    Cheers / Saludos,

    Carlos E. R.

    (from 13.1 x86_64 "Bottle" (Minas Tirith))
    Hah!

    I only have 7 toes left, now!
    "Take a Walk on a Sunny Day, Greet everyone along the way, and Make Somebody Smile, Today"
    Gerry Jack Macks"Walk On A Sunny Day" GerryJackMacks.net

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