USB boot problem and how to make it work...

Post in this forum for problems at boot time, if there was no problem for burning the disc. For example can't find the CD, or strange errors when you press enter at the very first prompt.
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RockT
Posts: 6
Joined: 05 Nov 2009, 08:45

USB boot problem and how to make it work...

Post by RockT » 25 Jan 2011, 10:56

Hi,

there seems to be a problem with the
"SystemRescueCd USB installer for Windows"

My problem was: I was not able to use a 8GB stick to boot SRCD 2.0 and only had a Windows installation at hand.

all following steps within Windows:

- tried two sticks, both 8GB, 8GB ntfs partition active
- formatted partition with fat32 and checked if still active
- ran USB installer with SRCD 2.0 ISO fine
- tried to boot on Dell Latitude D630 - failure with "boot error"
- started Fedora liveusb-creator and ran with SRCD 2.0
- this thing did not boot either
- ran USB installer with SRCD 2.0 ISO again - did not succeed because it could not overwrite some files
- deleted all files from USB stick and ran USB installer again
- this thing finally booted

So in short:
run Fedora live-usb creator
then delete all files from stick
then run the "SystemRescueCd USB installer for Windows"

Why did I have to run the Fedora tool to make it work...?

Thx
Rainer

markmarques
Posts: 85
Joined: 26 Feb 2007, 12:30
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Re: USB boot problem and how to make it work...

Post by markmarques » 25 Jan 2011, 18:36

By using the "Fedora tool" a new bootblock is created in the USB stick...

So we can assume that the "original" USB bootblock were not bootable ... :)
The system rescue installer uses the syslinux or isolinux bootblock ...

By some strange reason it did no work with your USB stick ...
The "usb Live tool" simply overwrites the boot block ...

Other idea would be using a partition table editor such as Parted or Gparted
in order to check what kind of MBR was present or even if it have the "boot" flag activated ...

RockT
Posts: 6
Joined: 05 Nov 2009, 08:45

Re: USB boot problem and how to make it work...

Post by RockT » 31 Jan 2011, 08:43

Hmm...
So we can assume that the "original" USB bootblock were not bootable ... :)
The system rescue installer uses the syslinux or isolinux bootblock ...
So this means the USB installer was not able to write the bootblock?
I have not seen any error messages with USB installer.

Rainer

markmarques
Posts: 85
Joined: 26 Feb 2007, 12:30
Contact:

Re: USB boot problem and how to make it work...

Post by markmarques » 02 Feb 2011, 17:08

Yes ...
Sometimes despite the fact that everything is apparently OK the USB is unable to boot...

Recently I had a similar problem and I get this fix:
If an USB pen does not boot with "missing operating system" it is simply solved with a full format in order to redefine the bootblock ...
Most of the time the USB sticks are factory formatted in a false "FAT32" , which does not allow to boot properly , so a full or quick standard FAT32 format is the correct answer ....

Any more ideas ?

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