Re: grub in mac

[address@hidden]

I am in mac, grub called grub_util_get_fd_size() in unix/hostdisk.c, should i copy it to apple/hostdisk.c and fix the bug?

thanks

from Peter

address@hidden 於 2015年11月12日 下午4:39 寫道：

oh no, i was wrong, forget me

address@hidden 於 2015年11月12日 下午4:38 寫道：

Thanks for the information, i try to fix it.

Another funny thing:

in ./grub-core/kern/emu/hostdisk.c:

    disk->total_sectors = grub_util_get_fd_size (fd, map[drive].device,

                                                 &disk->log_sector_size);

    disk->total_sectors >>= disk->log_sector_size;

second line is overwrite the value of previous life :-)

Andrei Borzenkov <address@hidden> 於 2015年11月12日 下午3:40 寫道：

On Thu, Nov 12, 2015 at 10:29 AM, Peter Cheung <address@hidden> wrote:

Thanks, i am trying to fix this in code, but i am too new to grub coding. I
want to print out something in ./grub-core/kern/disk_common.c, so i do
"grub_util_info("peter\n");" and add "include <grub/util/misc.h>" on the top
of the file, but i get this error:

In file included from lib/../kern/disk_common.c:1:0,

                from lib/disk.c:31:

../include/grub/util/misc.h:22:20: fatal error: stdlib.h: No such file or
directory

disk_common is unrelated to your problem. You need to look at host
device probing code under grub-core/osdep, code that maps host device
to grub device is historically located in various getroot.c files.

May I know the correct way to print out something please?

#ifdef GRUB_UTIL
 grub_util_info (...);
#endif

thanks
from Peter

Subject: Re: grub in mac
To: address@hidden
From: address@hidden
Date: Wed, 11 Nov 2015 08:08:09 +0300
CC: address@hidden

11.11.2015 07:34, Peter Cheung пишет:

I tried grub-install, but same error message, another thing i discovered
is "the size of hostdisk//dev/rdisk2 is 204800", but my hd.img file is
100MB.thanksfrom Peter

...

/toolchain/sbin/grub-install: info: drive = 0.
/toolchain/sbin/grub-install: info: the size of hostdisk//dev/rdisk2 is
204800.
/toolchain/sbin/grub-install: info: guessed root_dev
`hostdisk//dev/rdisk2' from dir
`/Users/peter/NetBeansProjects/PeterI/temp/grub/i386-pc'.
/toolchain/sbin/grub-install: info: setting the root device to
`hostdisk//dev/rdisk2,1'.
/toolchain/sbin/grub-install: error: attempt to read or write outside of
disk `hostdisk//dev/disk2'.

No, it is not the same message. Now it correctly detects disk2, but it
lacks MAC OS X specific code for BIOS device guessing.

grub-install expects device.map in /boot/grub; so put it there (i.e. on
filesystem on /dev/disk2s1).

Someone more familiar with OS X need to contribute device detection code
for it.

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