On Mon, Sep 22, 2003 at 01:17:42PM +0100, Alistair J Strachan wrote:

On Monday 22 September 2003 09:35, Andrew Morton wrote:

quoted

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test5/2
.6.0-test5-mm4/


. A series of patches from Al Viro which introduce 32-bit dev_t support

. Various new fixes

Hi Andrew,

-mm4 won't mount my ext3 root device whereas -mm3 will. Presumably this is 
some byproduct of the dev_t patches.

VFS: Cannot open root device "302" or hda2.
Please append correct "root=" boot option.
Kernel Panic: VFS: Unable to mount root fs on hda2.

Do you use devfsd ? 

I had to specify root like this :
root=/dev/ide/host0/bus0/target0/lun0/part5  then it worked just fine.

Btw Andrew ,

this change  "Synaptics" -> "SynPS/2" - breaks driver synaptic driver
from http://w1.894.telia.com/~u89404340/touchpad/index.html. 


-static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/
2", "ImPS/2", "ImExPS/2", "Synaptics"}; 
+static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2"};

One possible explanation is that I have devfs compiled into my kernel. I do 
not, however, have it automatically mounting on boot. It overlays /dev (which 
is populated with original style device nodes) after INIT has loaded.

Perhaps there is some other procedure I must complete before I can use 32bit 
dev_t?

[alistair] 01:15 PM [/usr/src/linux-2.6] egrep -e "DEVFS" -e "EXT3_FS" .config
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_DEVFS_FS=y
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set

[alistair] 01:16 PM [/usr/src/linux-2.6] dmesg | grep p2
 /dev/ide/host0/bus0/target0/lun0: p1 p2 p4

Cheers,
Alistair.
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