Public bug reported: I ran into this first on a 16.04.5 install I have. I just retried it on a new laptop with 18.04.1 with the same result.
When booting, I chose the advanced form, the rescue variant, and tried to use its fsck option. This failed almost immediately. I'm attaching a photo of the screen showing the error, but the text is /lib/recovery-mode/recovery-menu: line 80: /etc/default/rcS: No such file or directory /dev/nvme0n1p5 is mounted. e2fsck: Cannot continue, aborting. -------------------------------------------------------- Thus there seems to be no point in having this fsck option because it is doomed to fail. Well, at least in the absence of further guidance about how to use this. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: grub-common 2.02-2ubuntu8.9 ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18 Uname: Linux 4.15.0-42-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 Date: Sat Dec 8 13:52:47 2018 InstallationDate: Installed on 2018-10-18 (51 days ago) InstallationMedia: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: grub2 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic ** Attachment added: "iPhone photo of the screen on failure." https://bugs.launchpad.net/bugs/1807537/+attachment/5220436/+files/20181208_214340175_iOS.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1807537 Title: failure in fsck option of advanced boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1807537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs