I tried to install btrfs on my root filesystem (/), this is what I did :
install debian with :
/boot (ext2) (for grub),
grub on MBR.
compile the 2.6.31-rc4 from kernel.org with btrfs support
test the new kernel by rebooting (worked fine)
install btrfs-tools from debian sid repository (0.19-2)
boot on a ubuntu 9.04 live cd
update the source.list with debian sid
install btrfs-tools from debian sid
convert my / to btrfs
then the system didn't boot. the kernel loads but freezes (when disabling quiet mode I had "waiting for root filesystem") and drop to busybox.
I tried to mount manually the /
but I got "couldn't mount because of unsupported optional features (1)" "open_ctree failed".
What I wanted to have is :
/ (btrfs 0.19 with snapshot features and maybe compression)
what's the problem ? anyone can help ?
(I have no data on the hard drive, so if you have a better procedure to get the rootfs with btrfs...)
thanks in advance.