RE: grub in mac

[Peter Cheung]

Hi Andrei

    the $deviceName is /dev/disk2, which is correct because i can see it using mac command "diskutil list".

I am create a single file, containing a partition. I will use bochs emulator to boot that single file FS image.

thanks

from Peter

> Date: Tue, 10 Nov 2015 09:27:19 +0300
> Subject: Re: grub in mac
> From: address@hidden
> To: address@hidden
> CC: address@hidden
>
> On Tue, Nov 10, 2015 at 7:33 AM, Peter Cheung <address@hidden> wrote:
> > hi,
> > i am nearly able to build a file system image with FAT partition in mac,
> > but i stuck in this command:
> >
>
> Do you mean you create hard disk image and want to install GRUB on this image?
>
> > sudo $base/sbin/grub-bios-setup --no-rs-codes -m device.map -c
> > ../../`pwd`/temp/boot/grub/core.img -b
> > ../../toolchain/lib/grub/i386-pc/boot.img $deviceName
>
> And what is $deviceName?
>
> > /toolchain/sbin/grub-bios-setup: error: attempt to read or write outside of
> > disk `hostdisk//dev/disk2'.
> >
>
> This means GRUB does not detect $deviceName as device available at
> boot time. Usual big hammer is suitable device.map.
>
> > I cross compiled my grub by :
> >
> > ./configure --prefix=$PREFIX --target=i586-peter-elf
> >
> > Any tips?
> >
> >
> > Below is my script to make the fs image:
> >
> > base=/toolchain
> >
> > rm -fr hd.img
> >
> > tempDeviceName=`hdiutil info|grep FDisk|cut -d$'\t' -f1`
> >
> > hdiutil eject $tempDeviceName
> >
> > commands=( `which dd` `which kpartx` $base/bin/grub-mkimage
> > $base/sbin/grub-bios-setup )
> >
> > error="false"
> >
> > for c in address@hidden; do
> >
> > if [ ! -x $c ]; then
> >
> > echo "************************************************************";
> >
> > echo "$c not found!";
> >
> > echo "************************************************************";
> >
> > error="true";
> >
> > fi
> >
> > done
> >
> >
> > if [ "$error" == "true" ]; then
> >
> > exit;
> >
> > fi
> >
> >
> > dd if=/dev/zero of=hd.img count=10240 bs=10240
> >
> > #kpartx -d hd.img
> >
> > deviceName=`hdiutil attach -imagekey diskimage-class=CRawDiskImage -nomount
> > hd.img`
> >
> > deviceName=${deviceName//[[:space:]]/}
> >
> > echo "deviceName="$deviceName
> >
> >
> > umount temp
> >
> > rm -fr temp
> >
> > mkdir temp
> >
> > # create partition
> >
> > diskutil partitionDisk $deviceName MBRFormat "MS-DOS FAT32" "A" 100%
> >
> > umount /Volumes/a
> >
> > # end create partition
> >
> > mount -t msdos $deviceName"s1" temp
> >
> > mkdir -p temp/boot/grub
> >
> > cp grub.cfg temp/boot/grub/
> >
> > cp kernel/kernel temp/boot/
> >
> >
> > # setup grub
> >
> > echo "(hd0) /dev/loop0" > device.map
> >
> > echo "set prefix=(hd0,msdos1)/boot/grub" > mycfg.cfg
> >
> >
> > $base/bin/grub-mkimage --config=mycfg.cfg -p /boot -O i386-pc -o
> > temp/boot/grub/core.img biosdisk part_msdos fat vbe vga echo configfile
> > multiboot multiboot2
> >
> > cp $base/lib/grub/i386-pc/boot.img temp/boot/grub/
> >
> >
> > $base/sbin/grub-bios-setup --no-rs-codes -m device.map -c
> > ../../`pwd`/temp/boot/grub/core.img -b
> > ../../toolchain/lib/grub/i386-pc/boot.img $deviceName
> >
> > # end setup grub
> >
> >
> > umount temp
> >
> > #kpartx -d hd.img
> >
> > hdiutil eject $deviceName
> >
> > rm -fr temp
> >
> > rm -fr device.map
> >
> > rm -fr mycfg.cfg
> >
> >
> > thanks
> > from Peter (address@hidden)
> >
> > _______________________________________________
> > Help-grub mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/help-grub
> >