Thank you Goh, these are great tips. Adding —removable to grub-install solved my problem at last. My new USB stick also thanks you, no more full installs. Alan
Sent from my iPhone > On Mar 17, 2020, at 22:57, Goh Lip <g....@gmx.com> wrote: > > > >> On 2020-03-18 09:06, Alan Tu wrote: >> Hello, I have a weird problem. I successfully use one bootable USB to >> install Debian/Grub2/EFI to a second, blank USB. After installation, >> the USB boots to Debian in multiple reboot and full shutdown cycles. >> Then, I boot into Windows once without the USB target inserted, shut >> down, and the target USB no longer boots. > . > . >> After install, I can boot and reboot from the target USB multiple >> times, and I have a wonderful Linux system to work and play with. > . > . >> If I remove the target USB, boot into Windows from a cold boot, then >> immediately shut down, then re-insert the target USB, Linux no longer >> boots. I still boot into Windows. There are no beeps with the target >> USB inserted. >> > > > > You need to use "--removable" in the grub-install command to set it in a > removable device. Redo the grub-install command with that "--removable". > > And also to disable windows hiberfile (in windows) and fastboot (in > bios) when dual-booting with windows. > >