grub setup script, and added -march=i386 to CFLAGS

[3sys] / sys1 / mkgrubimage

diff --git a/sys1/mkgrubimage b/sys1/mkgrubimage
new file mode 100755 (executable)
index 0000000..b97a18a
--- /dev/null
+++ b/sys1/mkgrubimage
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+SUDO=
+mntpt=/tmp/3sys1mnt
+
+make -C kern || exit 1
+
+echo 'creating partition image: part.img'
+dd if=/dev/zero of=part.img bs=1024 count=63488
+mkfs -t vfat -n SYS1ROOT part.img
+
+echo 'creating disk image: disk.img'
+dd if=/dev/zero of=disk.img bs=1024 count=65536
+echo start=2048 type=c | sfdisk disk.img
+
+echo 'combining images'
+dd if=part.img of=disk.img bs=1024 seek=1024 conv=notrunc
+
+if [ "`id -u`" != 0 ]; then
+       if sudo --version >/dev/null 2>&1; then
+               echo 'will need superuser priviledges for the next part, using sudo'
+               SUDO=sudo
+       else
+               echo 'will need superuser priviledges for the next part, using su'
+               su || exit 1
+       fi
+fi
+
+echo "mounting parition image to $mntpt"
+$SUDO mkdir -p $mntpt
+$SUDO mount -o loop,offset=1M disk.img $mntpt
+$SUDO mkdir -p $mntpt/boot/grub
+echo 'copying grub files'
+$SUDO cp grub.cfg $mntpt/boot/grub
+echo 'copying kernel'
+$SUDO cp kern/kern1.elf $mntpt/boot
+echo 'installing grub'
+$SUDO grub-install --target=i386-pc --boot-directory=$mntpt/boot \
+       --skip-fs-probe --install-modules='part_msdos fat multiboot' \
+       --modules='part_msdos fat multiboot' disk.img
+$SUDO umount $mntpt