Re: [cooking] booting loram-cdrom on usb ( was: [cooking] various boot modes, successes and failures)

[Philippe Lelédy <slitaz@xxxxxxxxx>]

On 28/12/2010 21:44, pascal.bellard@xxxxxxxxxx wrote:
> > I open a new thread,
> >
> > On 25/12/2010 18:36, pascal.bellard@xxxxxxxxxx wrote:
> > > Hi,
> > >
> > > Can you try the following (I assume your usb key is /dev/usbkey, it
> > > should
> > > be /dev/sda, /dev/sdb or /dev/sdc, see
> > > http://doc.slitaz.org/en:guides:dvd#hybrid-iso too)
> > >
> > > # wget http://mirror.slitaz.org/iso/undigest/slitaz-core-loram-cdrom.iso
> > > # dd if=slitaz-core-loram-cdrom.iso of=/dev/usbkey
> > > ( or 'cp slitaz-core-loram-cdrom.iso /dev/usbkey')
> > > # fdisk /dev/usbkey ...
> > >
> > > And try to boot from the usb key.
> > >
> > > -pascal
> > Yes, I did, but I don't understand what I am supposed to do with
> >
> > fdisk /dev/usbkey
> >
> > *after* the dd
> >
> > http://doc.slitaz.org/en:guides:dvd#hybrid-iso gives no details.
> Ok. Try
> # fdisk /dev/usbkey
> n<enter>
> p<enter>
> 2<enter>
> <enter>
> <enter>
> w<enter>
>
> And you will get a 2nd partition with the remining storage.
Thanks for your explanation. I now understand that cat *.iso > 
/dev/usbkey is supposed to write a new partition table, as logically I 
thought, so the problem was a bug with the old USB I sacrified for the 
test: the partition table was unchanged after the dd , so my naive question.

With a fresh new bought key, it works ok. This feature is *very* impressive.

I will think about using it: so simple, so fast, so robust (R/O) and it 
would be up to the student who owns the key to make other partitions in 
the classroom with my advices and help. All big benefits.

BUT, it remains other issues, mainly due to MS Windows and freedom. I 
would like to make students value free software, so freedom in the way 
they can use the USB key I oblige them to buy is a must. Freedom 
includes using it with MS Windows, me liking it or not, and experience 
shew me that MS Windows only  see partition #1. Last try with Seven gave 
me worst result: with such strange a key, the only this that MS Window 
propose is formatting it.

I will investigate that later.

Ph.L.


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