Installer hangs at boot on machine

[Alberto Donato]

With a USB stick built from the 20200309 daily image, the installer hangs at boot right after checking packages checksums, with an LVM-related error.

Attached is an image of the boot screen.

Note that the "fsck:md5susms%" messages keeps repeating indefinitely.

The machine currently has dm-crypt + lvm.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: casper (not installed)
ProcVersionSignature: Ubuntu 5.3.0-40.32-generic 5.3.18
Uname: Linux 5.3.0-40-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8.3
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Mar 11 23:29:29 2020
InstallationDate: Installed on 2019-10-19 (144 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
SourcePackage: casper
UpgradeStatus: No upgrade log present (probably fresh install)

[Jean-Baptiste Lallement (jibel)]

confirmed with Ubuntu Desktop 20200312 on real hardware.

[Jean-Baptiste Lallement (jibel)]

To clarify, I reproduce this issue on HW without LVM.

[Alan Pope 🍺🐧🐱 🦄 (popey)]

Confirmed on hardware (X220 / i7 / 16GB)

[Michael Hudson-Doyle (mwhudson)]

how long is indefinitely? I ask because I successfully booted, but it was slow and I was booting off a USB3 enclosure with a m.2 SSD in it. I then tried plugging the same device into a USB2 port and it still booted, but took maybe a minute or slightly more to verify checksums.

[Alberto Donato (ack)]

@mwhudson I think it's been several minutes.

Note that I do see the printout for different files being checksummed (which does take a while), but after that I get that lvm error message, and then it just keeps printing "fsck:md5susms%" lines over and over.

[Dimitri John Ledkov (xnox)]

Hi,

during 20.04 installer boot we perform integrity check of the installation media.

However, the new spinner theme doesn't offer UI progress of that like it was with ubuntu-logo theme.

Thus lack of UI progress updates is related to the switch to the new spinner theme.

In a way this is a duplicate of https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1867130 but i think we want to keep this bug open due to discoverability?!

[Dimitri John Ledkov (xnox)]

This was fixed before the release i believe.