Hi All,
I read the sources of grub 0.94,I found the code in stage2/common.c that determin the disk access mode.I'm confused.the code is,
264 if (get_diskinfo (drive, &geom))
265 break;
266
267 /* Clean out the I/O map. */
268 grub_memset ((char *) io_map, 0,
269 IO_MAP_SIZE * sizeof (unsigned short));
270
271 /* Disable to probe I/O ports temporarily, because this doesn't
272 work with some BIOSes (maybe they are too buggy). */
273 #if 0
274 /* Track the int13 handler. */
275 track_int13 (drive);
276 #endif
277
278 /* Set the information. */
279 info->drive_number = drive;
280 info->drive_mode = ((geom.flags & BIOSDISK_FLAG_LBA_EXTENSION)
281 ? MB_DI_LBA_MODE : MB_DI_CHS_MODE);
geom.flags is 0,The process can not process to line 280. so ,the geom.flags is alway larger than or equal to 0.What's the situation geom.flags is equal to 0?if geom.flags is larger than 0,can it determin the disk's access mode is LBA ?
thanks!
Jason
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