It turns out for me that running "update-initramfs -k all -u" to rebuild all my initrds made the kernel bootable. So in my case this is the same as bug 149565. dutchie86, if that works for you too, this bug is a duplicate.
-- Kernel Panic - not syncing: VFS after upgrade. https://bugs.launchpad.net/bugs/151146 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs