According to Wikipedia and various sources, the recommended value for LBA read using IBM/MS INT13 Extensions is 127 sectors. --- include/grub/disk.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/grub/disk.h b/include/grub/disk.h index be032a72c..608deb034 100644 --- a/include/grub/disk.h +++ b/include/grub/disk.h @@ -184,14 +184,14 @@ typedef struct grub_disk_memberlist *grub_disk_memberlist_t; #define GRUB_MDRAID_MAX_DISKS 4096 /* The size of a disk cache in 512B units. Must be at least as big as the - largest supported sector size, currently 16K. */ -#define GRUB_DISK_CACHE_BITS 6 + largest supported sector size, currently 64K. */ +#define GRUB_DISK_CACHE_BITS 7 #define GRUB_DISK_CACHE_SIZE (1 << GRUB_DISK_CACHE_BITS) #define GRUB_DISK_MAX_MAX_AGGLOMERATE ((1 << (30 - GRUB_DISK_CACHE_BITS - GRUB_DISK_SECTOR_BITS)) - 1) /* Maximum number of sectors to read in LBA mode at once */ -#define GRUB_DISK_MAX_LBA_SECTORS 63 +#define GRUB_DISK_MAX_LBA_SECTORS 127 /* Return value of grub_disk_native_sectors() in case disk size is unknown. */ #define GRUB_DISK_SIZE_UNKNOWN 0xffffffffffffffffULL -- 2.41.0 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
