Booting from a USB stick
Timothy Murphy
tim at birdsnest.maths.tcd.ie
Tue Oct 23 02:28:47 UTC 2007
Mikkel L. Ellertson wrote:
>> The other point is that rather surprisingly
>> the instructions did not point to the ISO required.
>>
> You are supposed to run it from the directory with the CD image. You
> should be able give the full path to the image as the image name if
> you run from a different directory.
I didn't express myself clearly.
What I meant was that the instructions did not give an URL
where one could obtain the CD ISO online.
>> Finally, I found the USB stick was (perhaps not surprisingly)
>> mounted read-only, so one could not eg add a user;
>> or rather, one could, but it was not there on re-booting.
>>
> Are you sure the USB stick was mounted read-only, or was it just the
> compressed file system that was mounted read-only? The reason I ask,
> is because what this install does is copy the compressed file
> system, and the files needed to load/boot it over to the USB stick.
> The main advantages of using the USB stick are access speed, and
> physical size.
I'm sure you are right, though I don't completely understand
what you are saying.
"Mount" showed /dev/sdb1 (the memory stick) as ro.
I then ran "mount -o remount,rw /dev/sdb1"
and it became rw.
However none of the changes I made when sdb1 was rw seemed to "stick";
all disappeared when I re-booted.
>
> It is possible to install and boot from a USB stick, but I am not
> sure about the life of the USB stick when doing so. There are some
> things you can do to cut down on the number of writes to the USB
> stick...
>
> Mikkel
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