I just encountered this bug today on Ubuntu 11.04 (64 bits if that matters). My computer froze and after reboot, got this error. Ubuntu seems to boot but apparently the X server cannot start.
I can still boot using the failsafe option in grub, but after making the changes to recreate grubenv, every time I reboot something writes over grubenv and it has a size of 0 ... My version of grub is 1.99~rc1-13ubuntu3. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/439784 Title: Error: Invalid environment block -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs