On Sat, Apr 16, 2016 at 4:27 AM, Kevin Wilson <wkevils@xxxxxxxxx> wrote: > Hello, > 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 > key. > 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) > > 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 > change > it - it refuses to do so: > mount /dev/sdc1 -o rw /mnt/sdc1 > > Failed to execute operation: Access denied. > > Any ideas if there is anything I can do make this USB read-write ? or > is there a way to perapare Live Fedora USB key so that it could be > mounted from the Hard Disk as read-write ? Install livecd-tools and use livecd-iso-to-disk to make the stick. If you use --reset-mbr --efi --format and point it at the whole device, all data on the stick is lost, but it'll create a BIOS+UEFI bootable stick. All files will be on FAT32 which is read writable, including either grub.cfg (used on UEFI) or syslinux.conf (used on BIOS). When you dd the image to the USB stick, it retains the ISO's format of iso9660 which isn't a writable format. -- Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: http://lists.fedoraproject.org/admin/lists/users@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org