run.ps1 is a .ps1 that does not live under tools/, so every sweep that
fixed the other launchers went straight past it:
- hdb defaulted to build/fs.img, which nothing builds since SchFS
became the root, so it pointed at a file that does not exist. QEMU
came up with no usable disk on device 1 and the kernel panicked with
SCHFS_ROOT -- "no SchFS volume on the root device". That is exactly
the failure this script exists to prevent.
- a -SchFS switch built around the old arrangement, where SchFS was a
secondary volume and needed `make ramroot` to free device 1. There
is no such arrangement now; every boot is a SchFS boot.
- `cd /d/DEV/SchOS` hardcoded into the build invocation. It survived
the Schunix -> SchOS rename by luck and would break on any clone.
Derived from $PSScriptRoot now.
- a hardcoded scoop QEMU path, and build\ backslash literals.
- only -vga std, where the Makefile also attaches virtio-gpu-pci.
The magic check is SchFS-only now and prints the bytes it actually read
when it fails.
SchFS itself is fine: it mounts on 1, 2 and 4 CPUs, and all seven
bootcheck suites pass.
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