Le 25/06/2018 à 20:23, Hendrik Boom a écrit :
I used dd to copy the installer iso to a USB stck on my old laptop:

dd bs=4M if=devuan_ascii_2.0.0_amd64_netinst.iso of=/dev/sdb status=progress && 
sync

Then I moved the USB stick to my new Purism laptop, powered it up,
pressed esacpe to get a boot menu, and the USB stick was not recognised
as a boot device.

Is there something that needs to be done to the ISO before putting it on
the USB stick?  Or is the dd command wrong?  I remember that years ago
it had to be modified somehow in order to boot, but I thought that had been 
fixed long
long ago.  Something like prefixing it with a recognisable boot record?

Sorry for not testing this in the beta days, but I didn't have the new
computer yet.


    It seems you did it all well. Either your BIOS does not support reading an iso9660 filesystem from an USB stick, or you just need to allow it to boot from USB (in the BIOS menu). BTW, sync is useless: dd is a synchronous connand, AFAIK.

    Didier

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