[Bug 1931077] [NEW] emergency shell ignores all keyboard input

[Marius Gedminas]

Public bug reported:

An SSD that held my /boot/efi partition failed, took down local-fs.target, which brought up emergency.target.  I ended up with no ssh access, and a message on the local console telling me
to press Enter to get a root shell, or press Ctrl-D to continue booting normally.  The system did not react to either Enter or Ctrl-D.  I could switch between virtual consoles (but nothing was running on them, e.g. no getty), toggle Caps Lock, or reboot with Ctrl+Alt+Del.

An emergency console that doesn't accept keyboard input is not a useful
emergency console.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: systemd 237-3ubuntu10.47
ProcVersionSignature: Ubuntu 4.15.0-144.148-generic 4.15.18
Uname: Linux 4.15.0-144-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.24
Architecture: amd64
Date: Mon Jun  7 11:18:39 2021
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-144-generic root=/dev/mapper/hostname-root ro
SourcePackage: systemd
UpgradeStatus: Upgraded to bionic on 2019-08-12 (664 days ago)
dmi.bios.date: 08/14/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2204
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8Z77-V LX
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2204:bd08/14/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-VLX:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic

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https://bugs.launchpad.net/bugs/1931077

Title:
  emergency shell ignores all keyboard input

Status in systemd package in Ubuntu:
  New

Bug description:
  An SSD that held my /boot/efi partition failed, took down local-fs.target, which brought up emergency.target.  I ended up with no ssh access, and a message on the local console telling me
  to press Enter to get a root shell, or press Ctrl-D to continue booting normally.  The system did not react to either Enter or Ctrl-D.  I could switch between virtual consoles (but nothing was running on them, e.g. no getty), toggle Caps Lock, or reboot with Ctrl+Alt+Del.

  An emergency console that doesn't accept keyboard input is not a
  useful emergency console.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: systemd 237-3ubuntu10.47
  ProcVersionSignature: Ubuntu 4.15.0-144.148-generic 4.15.18
  Uname: Linux 4.15.0-144-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.24
  Architecture: amd64
  Date: Mon Jun  7 11:18:39 2021
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-144-generic root=/dev/mapper/hostname-root ro
  SourcePackage: systemd
  UpgradeStatus: Upgraded to bionic on 2019-08-12 (664 days ago)
  dmi.bios.date: 08/14/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2204
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z77-V LX
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2204:bd08/14/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-VLX:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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