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fix(devshell): enable EFI boot on macOS by patching OVMF paths 

Nix's qemu_full bundles EDK2 firmware with different filenames than
quickemu expects. Add darwin-specific sed patterns to:
- Set SHARE_PATH to qemu_full's share directory
- Prepend correct firmware paths (edk2-x86_64-code.fd, edk2-i386-vars.fd)
  to the ovmfs search array
This commit is contained in:
Martin Wimpress 2026-01-24 09:54:59 +00:00 committed by Martin Wimpress
parent 9cc54ff365
commit 81143afaab
1 changed files with 5 additions and 1 deletions
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devshell.nix
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@ -55,7 +55,11 @@ mkShell {
-e '/OVMF_CODE_4M.secboot.fd/s|ovmfs=(|ovmfs=("${OVMFFull.firmware}","${OVMFFull.variables}" |' \
-e '/OVMF_CODE_4M.fd/s|ovmfs=(|ovmfs=("${OVMF.firmware}","${OVMF.variables}" |' \
''
} \
}${lib.optionalString stdenv.isDarwin ''
-e 's|local SHARE_PATH="/usr/share"|local SHARE_PATH="${pkgs.qemu_full}/share"|' \
-e 's|ovmfs=("[$][{]SHARE_PATH}/OVMF/OVMF_CODE_4M.secboot.fd"|ovmfs=("${pkgs.qemu_full}/share/qemu/edk2-x86_64-secure-code.fd","${pkgs.qemu_full}/share/qemu/edk2-i386-vars.fd" "''${SHARE_PATH}/OVMF/OVMF_CODE_4M.secboot.fd"|' \
-e 's|ovmfs=("[$][{]SHARE_PATH}/OVMF/OVMF_CODE_4M.fd"|ovmfs=("${pkgs.qemu_full}/share/qemu/edk2-x86_64-code.fd","${pkgs.qemu_full}/share/qemu/edk2-i386-vars.fd" "''${SHARE_PATH}/OVMF/OVMF_CODE_4M.fd"|' \
''} \
-e '/cp "''${VARS_IN}" "''${VARS_OUT}"/a chmod +w "''${VARS_OUT}"' \
-e 's,\$(command -v smbd),${pkgs.samba}/bin/smbd,' \
quickemu > $PWD/.direnv/bin/quickemu