Similar to an earlier thread [portable (really) Fedora on stick], I am trying to create a portable Fedora 27 install on an external USB hard drive. I have done this in the past as recently as Fedora 14, but things have changed since then, and I seem to be hitting some unexpected issues.... The install proceeds as expected, no apparent errors, etc. But then when I go to boot the external drive, it immediately displays "Operation System not found" - Note that is is "Operation", *not* "Operating". Googling, I found suggestions regarding setting boot flags which I have tried to no avail. In the thread mentioned above, there was a step to use dracut to rebuild the initramfs files, which I have done, again to no avail. (This step was done by using the install USB stick, the "troubleshoot" option, and then chroot'ing into /mnt/sysimage). Any suggestions as to what I should try next? Some additional info.... Internal drive has been wiped, and is not bootable. External USB drive is 4TB, and has a GPT partition table using the default layout provided by the installer. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx/message/HXLL6HQVA54PYATMUOMTSEUPLOV7XDWC/