Internal hard disk partition (btrfs) cannot be mounted manually (nor automatically)

[Tommy_CZ]

Hi, I had to reboot my Ubuntu manually because it freezed, but after that, It freezed in the middle of boot and said something about it cannot mount my /home partition (/dev/sda6), which is btrfs.
It is unmountable also from live-cd.
Are all of my data destroyed?
What can I do with it?
Also, I tried to report this bug using ubuntu-bug command, it asked me about few things and I answered this:
"other problem" -> "freezes or hangs during boot or usage" and it kicked me to this "xorg" bug report, I do not think it is correct, but when I tried to use "ubuntu-bug" -> "external or internal....." it offered me to report bug in sound devices. Is it a joke?
Thanks.
P.S. I'm adding screenshots of booting my Ubuntu and also of Kubuntu live CD.
Both reports errors mounting /dev/sda6.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: udisks 1.0.2-4ubuntu1 [modified: lib/udev/udisks-dm-export lib/udev/udisks-lvm-pv-export lib/udev/udisks-part-id lib/udev/udisks-probe-ata-smart lib/udev/udisks-probe-sas-expander sbin/umount.udisks usr/bin/udisks usr/bin/udisks-tcp-bridge usr/lib/udisks/udisks-daemon usr/lib/udisks/udisks-helper-ata-smart-collect usr/lib/udisks/udisks-helper-ata-smart-selftest usr/lib/udisks/udisks-helper-change-filesystem-label usr/lib/udisks/udisks-helper-create-partition usr/lib/udisks/udisks-helper-create-partition-table usr/lib/udisks/udisks-helper-delete-partition usr/lib/udisks/udisks-helper-drive-benchmark usr/lib/udisks/udisks-helper-drive-detach usr/lib/udisks/udisks-helper-drive-poll usr/lib/udisks/udisks-helper-fstab-mounter usr/lib/udisks/udisks-helper-linux-md-check usr/lib/udisks/udisks-helper-linux-md-remove-component usr/lib/udisks/udisks-helper-mkfs usr/lib/udisks/udisks-helper-modify-partition]
Uname: Linux 2.6.38-02063808-generic x86_64
Architecture: amd64
Date: Thu Jun 30 16:21:55 2011
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
MachineType: LENOVO 20035
ProcEnviron:
 PATH=(custom, no user)
 LANG=cs_CZ.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-02063808-generic root=UUID=37bf390e-c6df-4b9d-9ca7-e951a038548d ro quiet splash vt.handoff=7
SourcePackage: udisks
Symptom: storage
Title: Internal hard disk partition cannot be mounted manually
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/17/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 1ECN33WW(V5.07)
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: LENOVO
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnLENOVO:bvr1ECN33WW(V5.07):bd03/17/2010:svnLENOVO:pn20035:pvrLenovoIdeaPadY550P:rvnLENOVO:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: 20035
dmi.product.version: Lenovo IdeaPad Y550P
dmi.sys.vendor: LENOVO

[Tommy_CZ (t-kijas)]

Screenshot of boot errors of my Ubuntu 11.04 64bit

[Tommy_CZ (t-kijas)]

Can anyone help me please?