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* grub-core/kern/emu/hostdisk.c (grub_util_biosdisk_is_floppy): New

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function.
	* include/grub/emu/hostdisk.h (grub_util_biosdisk_is_floppy): New proto.
	* util/grub-setup.c (setup): Use grub_util_biosdisk_is_floppy.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-09-15 15:30:43 +02:00
parent 2b94e3ff6e
commit f00478b719
4 changed files with 36 additions and 2 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2010-09-15 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/kern/emu/hostdisk.c (grub_util_biosdisk_is_floppy): New
function.
* include/grub/emu/hostdisk.h (grub_util_biosdisk_is_floppy): New proto.
* util/grub-setup.c (setup): Use grub_util_biosdisk_is_floppy.
2010-09-15 Yves Blusseau <blusseau@zetam.org> 2010-09-15 Yves Blusseau <blusseau@zetam.org>
Add function to get completions from usage. Add function to get completions from usage.

26
grub-core/kern/emu/hostdisk.c
View file

@ -1575,3 +1575,29 @@ grub_util_biosdisk_get_osdev (grub_disk_t disk)
{ {
return map[disk->id].device; return map[disk->id].device;
} }
int
grub_util_biosdisk_is_floppy (grub_disk_t disk)
{
struct stat st;
int fd;
fd = open (map[disk->id].device, O_RDONLY);
/* Shouldn't happen. */
if (fd == -1)
return 0;
/* Shouldn't happen either. */
if (fstat (fd, &st) < 0)
return 0;
#if defined(__NetBSD__)
if (major(st.st_rdev) == RAW_FLOPPY_MAJOR)
return 1;
#endif
if (major(st.st_rdev) == FLOPPY_MAJOR)
return 1;
return 0;
}

1
include/grub/emu/hostdisk.h
View file

@ -27,5 +27,6 @@ void grub_util_biosdisk_fini (void);
char *grub_util_biosdisk_get_grub_dev (const char *os_dev); char *grub_util_biosdisk_get_grub_dev (const char *os_dev);
const char *grub_util_biosdisk_get_osdev (grub_disk_t disk); const char *grub_util_biosdisk_get_osdev (grub_disk_t disk);
int grub_util_biosdisk_is_present (const char *name); int grub_util_biosdisk_is_present (const char *name);
int grub_util_biosdisk_is_floppy (grub_disk_t disk);
#endif /* ! GRUB_BIOSDISK_MACHINE_UTIL_HEADER */ #endif /* ! GRUB_BIOSDISK_MACHINE_UTIL_HEADER */

2
util/grub-setup.c
View file

@ -339,7 +339,7 @@ setup (const char *dir,
/* If DEST_DRIVE is a hard disk, enable the workaround, which is /* If DEST_DRIVE is a hard disk, enable the workaround, which is
for buggy BIOSes which don't pass boot drive correctly. Instead, for buggy BIOSes which don't pass boot drive correctly. Instead,
they pass 0x00 or 0x01 even when booted from 0x80. */ they pass 0x00 or 0x01 even when booted from 0x80. */
if (dest_dev->disk->id & 0x80) if (!grub_util_biosdisk_is_floppy (dest_dev->disk))
/* Replace the jmp (2 bytes) with double nop's. */ /* Replace the jmp (2 bytes) with double nop's. */
*boot_drive_check = 0x9090; *boot_drive_check = 0x9090;
} }