Bt3+2.6.28.1+EXT4+KernelPanic

[lflow]

Hi all,

i've successfully installed bt3final_usb and upgraded to the newest kernel 2.6.28.1 and everything goes fine thanks to the howto in BT3 HowTo section.
I've only a problem with EXT4.
When i've installed the newest iso to disk, i created my / partition as ext4.
If i try to mount that partition from live cd (mount -t ext4 /dev/sda1 xxxx) everything works fine, but the system can't mount my / ext4 partition on boot so i got

"VFS: cannot open root device UUID="xxx" or unknown block (0,0)
...
kernel panic: not syncing: unable to mount root fs on unknown block (0,0)"

/dev/sda1 = boot partition (ext3)
/dev/sda2 = swap
/dev/sda3 = / (ext4)

I've installed the latest grub i was able to find (grub-1.96) with the following option:

...
root=(hd0,1)
...
linux /boot/vmlinux root=/dev/sda3 rootfstype=ext4
...
i tried to use UUID (blkid to get the UUID of my root partition TYPE=EXT4) without success?

what's wrong?
am i missing something?

Thanks!

[purehate]

The real question is why? Why are you going to all this trouble to use a ext4 file system or even a newer kernel for that matter. Generally people that need these type of tweaks know what the are doing so you have to ask your self "why do I need ext4 and is it worth all this trouble just tell people I'm using it?"

[lflow]

You're right, there is no specifical or technical reason for me.
But my purpose it's not to tell people "hey, i'm 3l33t c0z i'm using ext4!!"
I was only curious to test this filesystem and understand if and how could be useful for me or my job.
Yes, i don't have too much experience with this kind of problem, but i don't think to be bad or stupid only because i wanna try ext4 although i wasn't able to resolve my problem.
Out there, and you know, many people use Backtrack to do worst things without having a real knowledge (or conscience) of what they're doing.
I was only curious to play a bit with ext4, nothing more