As it was asked I've copied fsys_ffs.c in fsys_ufs2.c. I've make changes in files (see attached patch).
The first trouble I've met is a comment from disk_io.c:
/* XX FFS should come last as it's superblock is commonly crossing tracks
on floppies from track 1 to 2, while others only use 1. */
But anyway I've placed code after it.The second problem is rebooting just after stage2 loaded. As I discover it may be undefined fsys_table[fsys_type].mount_func int attempt_mount() (from disk_io.c) for ufs2_mount. (I'm not sure, but I'm sure ufs2_mount is not called and it looks like other *_mount is called. I checked it with printf()).
And finally I can't to debug grub with grub-shell. When I ran it and type 'root (hd0)' I got an error:
Error 21: Selected disk does not exist
Even after I have created a device map file with a content: (hd0) /dev/ad0 and ran grub --device-map=mydev.map
Please, hint me for they all! -- Sem.
--- Makefile.am.orig Mon Feb 4 07:55:48 2002
+++ stage2/Makefile.am Tue Sep 23 04:33:34 2003
@@ -4,9 +4,10 @@
# For dist target.
noinst_HEADERS = apic.h defs.h dir.h disk_inode.h disk_inode_ffs.h \
+ disk_inode_ufs2.h \
fat.h filesys.h freebsd.h fs.h hercules.h i386-elf.h \
imgact_aout.h jfs.h mb_header.h mb_info.h md5.h pc_slice.h \
- serial.h shared.h smp-imps.h nbi.h vstafs.h xfs.h
+ serial.h shared.h smp-imps.h nbi.h vstafs.h xfs.h disk_inode_ufs2.h
EXTRA_DIST = setjmp.S apm.S $(noinst_SCRIPTS)
# For <stage1.h>.
@@ -15,11 +16,11 @@
# The library for /sbin/grub.
noinst_LIBRARIES = libgrub.a
libgrub_a_SOURCES = boot.c builtins.c common.c char_io.c cmdline.c \
- disk_io.c gunzip.c fsys_ffs.c fsys_ext2fs.c fsys_fat.c \
+ disk_io.c gunzip.c fsys_ffs.c fsys_ufs2.c fsys_ext2fs.c fsys_fat.c \
fsys_jfs.c fsys_minix.c fsys_reiserfs.c fsys_vstafs.c \
fsys_xfs.c stage2.c md5.c
libgrub_a_CFLAGS = $(GRUB_CFLAGS) -I$(top_srcdir)/lib \
- -DGRUB_UTIL=1 -DFSYS_EXT2FS=1 -DFSYS_FAT=1 -DFSYS_FFS=1 \
+ -DGRUB_UTIL=1 -DFSYS_EXT2FS=1 -DFSYS_FAT=1 -DFSYS_FFS=1 -DFSYS_UFS2=1 \
-DFSYS_JFS=1 -DFSYS_MINIX=1 -DFSYS_REISERFS=1 -DFSYS_VSTAFS=1 \
-DFSYS_XFS=1 -DUSE_MD5_PASSWORDS=1 \
-DSUPPORT_SERIAL=1 -DSUPPORT_HERCULES=1 -fwritable-strings
@@ -30,23 +31,23 @@
EXTRA_PROGRAMS = nbloader.exec pxeloader.exec diskless.exec
if DISKLESS_SUPPORT
-pkgdata_DATA = stage2 e2fs_stage1_5 fat_stage1_5 ffs_stage1_5 \
+pkgdata_DATA = stage2 e2fs_stage1_5 fat_stage1_5 ffs_stage1_5 ufs2_stage1_5 \
jfs_stage1_5 minix_stage1_5 reiserfs_stage1_5 vstafs_stage1_5 \
xfs_stage1_5 nbgrub pxegrub
noinst_DATA = pre_stage2 start nbloader pxeloader diskless
noinst_PROGRAMS = pre_stage2.exec start.exec e2fs_stage1_5.exec \
- fat_stage1_5.exec ffs_stage1_5.exec jfs_stage1_5.exec \
- minix_stage1_5.exec reiserfs_stage1_5.exec \
+ fat_stage1_5.exec ffs_stage1_5.exec ufs2_stage1_5.exec \
+ jfs_stage1_5.exec minix_stage1_5.exec reiserfs_stage1_5.exec \
vstafs_stage1_5.exec xfs_stage1_5.exec nbloader.exec \
pxeloader.exec diskless.exec
else
-pkgdata_DATA = stage2 e2fs_stage1_5 fat_stage1_5 ffs_stage1_5 \
+pkgdata_DATA = stage2 e2fs_stage1_5 fat_stage1_5 ffs_stage1_5 ufs2_stage1_5 \
jfs_stage1_5 minix_stage1_5 reiserfs_stage1_5 vstafs_stage1_5 \
xfs_stage1_5
noinst_DATA = pre_stage2 start
noinst_PROGRAMS = pre_stage2.exec start.exec e2fs_stage1_5.exec \
- fat_stage1_5.exec ffs_stage1_5.exec jfs_stage1_5.exec \
- minix_stage1_5.exec reiserfs_stage1_5.exec \
+ fat_stage1_5.exec ffs_stage1_5.exec ufs2_stage1_5.exec \
+ jfs_stage1_5.exec minix_stage1_5.exec reiserfs_stage1_5.exec \
vstafs_stage1_5.exec xfs_stage1_5.exec
endif
MOSTLYCLEANFILES = $(noinst_PROGRAMS)
@@ -83,9 +84,9 @@
# For stage2 target.
pre_stage2_exec_SOURCES = asm.S bios.c boot.c builtins.c common.c \
char_io.c cmdline.c disk_io.c gunzip.c fsys_ext2fs.c \
- fsys_fat.c fsys_ffs.c fsys_jfs.c fsys_minix.c fsys_reiserfs.c \
- fsys_vstafs.c fsys_xfs.c hercules.c serial.c smp-imps.c \
- stage2.c md5.c
+ fsys_fat.c fsys_ffs.c fsys_ufs2.c fsys_jfs.c fsys_minix.c \
+ fsys_reiserfs.c fsys_vstafs.c fsys_xfs.c hercules.c serial.c \
+ smp-imps.c stage2.c md5.c
pre_stage2_exec_CFLAGS = $(STAGE2_COMPILE) $(FSYS_CFLAGS)
pre_stage2_exec_ASFLAGS = $(STAGE2_COMPILE) $(FSYS_CFLAGS)
pre_stage2_exec_LDFLAGS = $(PRE_STAGE2_LINK)
@@ -147,6 +148,15 @@
ffs_stage1_5_exec_ASFLAGS = $(STAGE1_5_COMPILE) -DFSYS_FFS=1 \
-DNO_BLOCK_FILES=1
ffs_stage1_5_exec_LDFLAGS = $(STAGE1_5_LINK)
+
+# For ufs2_stage1_5 target.
+ufs2_stage1_5_exec_SOURCES = start.S asm.S common.c char_io.c disk_io.c \
+ stage1_5.c fsys_ufs2.c bios.c
+ufs2_stage1_5_exec_CFLAGS = $(STAGE1_5_COMPILE) -DFSYS_UFS2=1 \
+ -DNO_BLOCK_FILES=1
+ufs2_stage1_5_exec_ASFLAGS = $(STAGE1_5_COMPILE) -DFSYS_UFS2=1 \
+ -DNO_BLOCK_FILES=1
+ufs2_stage1_5_exec_LDFLAGS = $(STAGE1_5_LINK)
# For minix_stage1_5 target.
minix_stage1_5_exec_SOURCES = start.S asm.S common.c char_io.c disk_io.c \
--- filesys.h.orig Mon Nov 12 09:57:29 2001
+++ stage2/filesys.h Tue Sep 23 04:33:34 2003
@@ -30,6 +30,16 @@
#define FSYS_FFS_NUM 0
#endif
+#ifdef FSYS_UFS2
+#define FSYS_UFS2_NUM 1
+int ufs2_mount (void);
+int ufs2_read (char *buf, int len);
+int ufs2_dir (char *dirname);
+int ufs2_embed (int *start_sector, int needed_sectors);
+#else
+#define FSYS_UFS2_NUM 0
+#endif
+
#ifdef FSYS_FAT
#define FSYS_FAT_NUM 1
int fat_mount (void);
@@ -107,7 +117,8 @@
#ifndef NUM_FSYS
#define NUM_FSYS \
- (FSYS_FFS_NUM + FSYS_FAT_NUM + FSYS_EXT2FS_NUM + FSYS_MINIX_NUM \
+ (FSYS_FFS_NUM + FSYS_UFS2_NUM + FSYS_FAT_NUM + FSYS_EXT2FS_NUM \
+ + FSYS_MINIX_NUM \
+ FSYS_REISERFS_NUM + FSYS_VSTAFS_NUM + FSYS_JFS_NUM + FSYS_XFS_NUM \
+ FSYS_TFTP_NUM)
#endif
--- disk_io.c.orig Wed Nov 28 21:43:56 2001
+++ stage2/disk_io.c Fri Oct 10 03:17:52 2003
@@ -68,6 +68,9 @@
# ifdef FSYS_XFS
{"xfs", xfs_mount, xfs_read, xfs_dir, 0, 0},
# endif
+# ifdef FSYS_UFS2
+ {"ufs2", ufs2_mount, ufs2_read, ufs2_dir, 0, ufs2_embed},
+# endif
/* XX FFS should come last as it's superblock is commonly crossing tracks
on floppies from track 1 to 2, while others only use 1. */
# ifdef FSYS_FFS
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