On 04/16/2016 03:27 AM, Kevin Wilson wrote:
After copying an ISO of fedora 23 x86_64 into a USB key with the dd
command, everything is fine - I can boot with that USB
However, there is one machine where I have to use nosmp so that it
will boot. There is some hw problem with this issue but
this machine is only for simple tests so I don't mind that it will
work as a non SMP machine,
So I want to change the grub of the USB disk on key (add "nosmp" to
the kernel command line)
You can always add it at boot time, but you are wanting it to be permanent?
When I boot into fedora from hard disk and try to mount it, it is
mounted as read-only. Also specifying "rw" and a boot options does not
it - it refuses to do so:
mount /dev/sdc1 -o rw /mnt/sdc1
Failed to execute operation: Access denied.
The ISO CD format is read-only and that's what you wrote to the USB
drive. Use livecd-iso-to-disk to put the contents of the ISO file on
the USB. Then you can not only edit the boot files, but you can also
use the rest of the storage space on the drive.