> On 20 May 2022, at 18:27, Sandeep Gupta <gupta.sand...@gmail.com> wrote: > > Hello, > > This post here ( > http://matecha.net/posts/openbsd-on-pi-4-with-full-disk-encryption/) claims > its possible to > boot OpenBSD directly from USB without the need for UEFI on sdcard. > I tried today but couldn't get it to work. I got a blank screen during the > installation process. What I did was > 1) updated the eeprom (bootloader) > 2) set boot to usb > 3) wrote install71.img onto ssd. > > The boot process did start but I got a blank screen. I was wondering if > anyone has tried and has had success with booting > OpenBSD directly from USB. > > Thanks > sandeep >
Hi, It’s possible to boot from USB only, it’s what I do with a special USB to NVMe adapter in an argon case but in the process I do, you still need a SD card and a TTL cable prior to boot only from USB. 1. Burn install71.img or miniroot71.img to the SD card 2. Plug the appropriate TX/RX/GND pins on the board and open a serial line (using cu/picocom) 3. Insert the SD card and power on the Pi 4. Install as usual to the correct USB disk 5. Reboot. The install script uses labels in /etc/fstab which means it will just work out of the box. Note: use an ethernet wire as well if you choose the miniroot, there are no firmware for bwfm in 7.1 IIRC. Regarding your question, you get a blank screen because the installer in ARM uses serial console by default. HTH -- David
