Re: grub in mac

[Andrei Borzenkov]

11.11.2015 06:05, Peter Cheung пишет:
> Hi    yes, it is a loopback device in mac,
> /Users/peter>diskutil list
> /dev/disk0 (internal, physical):
>     #:                       TYPE NAME                    SIZE       IDENTIFIER
>     0:      GUID_partition_scheme                        *251.0 GB   disk0
>     1:                        EFI EFI                     209.7 MB   disk0s1
>     2:          Apple_CoreStorage Macintosh HD            250.1 GB   disk0s2
>     3:                 Apple_Boot Recovery HD             650.1 MB   disk0s3
> /dev/disk1 (internal, virtual):
>     #:                       TYPE NAME                    SIZE       IDENTIFIER
>     0:                  Apple_HFS Macintosh HD           +249.8 GB   disk1
>                                   Logical Volume on disk0s2
>                                   AD00F0B6-B785-409F-B32F-F77FE8E2108E
>                                   Unlocked Encrypted
> /dev/disk2 (disk image):
>     #:                       TYPE NAME                    SIZE       IDENTIFIER
>     0:     FDisk_partition_scheme                        +104.9 MB   disk2
>     1:                 DOS_FAT_32 A                       104.8 MB   disk2s1
> /Users/peter>
> This is my device.map:
> /Users/peter>cat NetBeansProjects/PeterI/device.map
> (hd0) /dev/loop0
> The device.map work in linux, no sure it is the problem or not.thanksfrom Peter

Do you have /dev/loop0 in OS X? You probably should have

(hd0) /dev/disk2


there.


> > Date: Tue, 10 Nov 2015 10:02:28 +0300
> > Subject: Re: grub in mac
> > From: address@hidden
> > To: address@hidden
> > CC: address@hidden
> >
> > On Tue, Nov 10, 2015 at 9:59 AM, Peter Cheung <address@hidden> wrote:
> > > 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.
> >
> > Is it something similar to Linux loop device then? I.e. /dev/disk2
> > actually refers to this file you mention? Correct? What is in your
> > device.map?
> >
> > > 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
> >
> > _______________________________________________
> > Help-grub mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/help-grub
>