Hi,
On Sat, Oct 31, Florian Lohoff wrote:
> Hi,
> i am trying to automatically install a small distribution via
> network and continue booting via the umsdos pseudo root.
>
> If i do this with an full ext2 partition this works fine but on umsdos
> i get (hand written)
>
> --schnipp-----------
> UMSDOS Beta 0.6 (compatibility level 0.4, fast msdos)
> VFS: Mounted root (umsdos filesystem) readonly.
> Trying to unmount old root ... <3>error -16
> Change root to /initrd: error -2
> Unable to open initial console
>
> ------schnapp-------
>
> This is all Kernel 2.0.35 - id like to try 2.0.36pre but currently i cant
> find the pre patches .. (*linux.org unresolvable)
>
> It seems to me that this is an umsdos/initrd bug but maybe someone else
> knows more ...
This is an old bug. The attached patch fixes it but breaks use of UMSDOS
as module. I know I should do a clean patch, but it should solve your
problem as you need UMSDOS support compiled in anyway.
> Flo
-o)
Hubert Mantel Goodbye, dots... /\\
_\_v
--X1bOJ3K7DJ5YkBrT
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=initrd-umsdos
diff -urN linux-pre-2.0.31/fs/super.c linux-pre-2.0.31-umsdos/fs/super.c
--- linux-pre-2.0.31/fs/super.c Tue Apr 8 17:47:46 1997
+++ linux-pre-2.0.31-umsdos/fs/super.c Wed Jun 18 17:25:59 1997
@@ -1054,6 +1054,17 @@
}
ROOT_DEV = new_root_dev;
do_mount_root();
+
+#ifdef CONFIG_UMSDOS_FS
+ {
+ extern struct inode *pseudo_root;
+ if (pseudo_root != NULL){
+ current->fs->root = pseudo_root;
+ current->fs->pwd = pseudo_root;
+ }
+ }
+#endif
+
old_fs = get_fs();
set_fs(get_ds());
error = namei(put_old,&inode);
diff -urN linux-pre-2.0.31/fs/umsdos/inode.c linux-pre-2.0.31-umsdos/fs/umsdos/inode.c
--- linux-pre-2.0.31/fs/umsdos/inode.c Sat Nov 30 11:21:22 1996
+++ linux-pre-2.0.31-umsdos/fs/umsdos/inode.c Wed Jun 18 17:25:59 1997
@@ -380,6 +380,9 @@
/*
Read the super block of an Extended MS-DOS FS.
*/
+#ifdef CONFIG_BLK_DEV_INITRD
+extern int mount_initrd;
+#endif
struct super_block *UMSDOS_read_super(
struct super_block *s,
void *data,
@@ -409,7 +412,11 @@
PRINTK (("umsdos_read_super %p\n",sb->s_mounted));
umsdos_setup_dir_inode (sb->s_mounted);
PRINTK (("End umsdos_read_super\n"));
+#ifdef CONFIG_BLK_DEV_INITRD
+ if (s == super_blocks || mount_initrd){
+#else
if (s == super_blocks){
+#endif
/* #Specification: pseudo root / mount
When a umsdos fs is mounted, a special handling is done
if it is the root partition. We check for the presence
diff -urN linux-pre-2.0.31/init/main.c linux-pre-2.0.31-umsdos/init/main.c
--- linux-pre-2.0.31/init/main.c Wed Jun 18 17:24:04 1997
+++ linux-pre-2.0.31-umsdos/init/main.c Wed Jun 18 18:29:30 1997
@@ -973,9 +973,12 @@
if (mount_initrd && ROOT_DEV != real_root_dev && ROOT_DEV == MKDEV(RAMDISK_MAJOR,0)) {
int error;
+ mount_initrd = 0;
pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
if (pid>0)
while (pid != wait(&i));
+
+ mount_initrd = 1;
if (real_root_dev != MKDEV(RAMDISK_MAJOR, 0)) {
error = change_root(real_root_dev,"/initrd");
if (error)
@@ -983,6 +986,7 @@
"error %d\n",error);
}
}
+ mount_initrd = 0;
#endif
/*
--X1bOJ3K7DJ5YkBrT--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/