Write a USB stick
Use a stick of 8 GB or more. Writing erases it. Write the ISO as a raw image to the whole stick; copying the file onto a formatted stick does not boot.
| From | How |
|---|---|
| Linux | Find the stick with lsblk, then sudo dd if=stratum-x86_64.iso of=/dev/sdX bs=4M conv=fsync status=progress |
| Linux, Windows, macOS | Fedora Media Writer: Select .iso file, then the stick. |
| Windows | Rufus: when asked, choose Write in DD Image mode, not ISO Image mode. |
| macOS | diskutil list, diskutil unmountDisk /dev/diskN, then sudo dd if=stratum-x86_64.iso of=/dev/rdiskN bs=4m |
Replace /dev/sdX or /dev/diskN with the stick, never a partition
(/dev/sdX1) and never a system disk.
Boot managers that load ISO files from a data partition (Ventoy and the like) are not supported.
Optional: a second stick for answers and keys
Section titled “Optional: a second stick for answers and keys”A FAT partition labelled STRATUM on a second stick can carry files the
installer reads:
| File | Used for |
|---|---|
authorized_keys |
SSH public keys for root, loaded on the root step of stage 1 with ctrl+l. |
install.yaml |
Stage 1 answers, for an unattended install. |
node.yaml |
Stage 2 answers, beside install.yaml, for a fully unattended install. |
sudo mkfs.vfat -n STRATUM /dev/sdY1