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Re: [LUG] USB boot

 

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Simon Waters wrote:
> trewornan wrote:
>> I can't explain this: before I loaded the KingMax up via Unetbootin I
>> set it up as a single FAT32 partition and marked it bootable same as
>> with the Kingston. The only odd thing I can find is that the KingMax
>> although it says 4GB actually the partition (which as far as I can
>> see covers the entire memory) says 3.8GB. Is it possible there's some
>> peculiar proprietary partitioning that isn't apparent under normal
>> usage.
> 
> Possible but just list the partitions and look "fdisk -l /dev/sdX" or
> "parted /dev/sdX".
> 
> I've fought similar today, USB flash devices can be difficult to boot.
> 
> I think the most likely cause if partition is correct is problems with
> the master boot record, just blat it "aptitude install mbr" "install-mbr
> /dev/sdX", then use parted or other partition tool to ensure the FAT32
> partition is correctly flagged as bootable.
> 
> In my case the separate partitioning was too painful to fiddle with, I
> went with sticking the Debian bootable image over the whole device "zcat
> boot.img.gz >/dev/sdX" which worked nicely for Debian.
> 
I think there is some sort of partition on the san disk flash drives,
not sure i think mine had  some sort of file manager on it,  I tried to
delete it.

could also explain why trying to mount such devices is harder,  as you
expect it to be /dev/sda1 or whatever and it ends up something other
than what you would expect.

Paul
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