[Bug 1834250] Re: update-grub complains about non-existent drives

[Scott Seufert]

I figured out what was causing this issue. I recently installed a multi-
card reader in a 5.25 bay that my system sees as separate drives and "no
medium found" errors are from no media being in the readers. I've since
unplugged all the wires for this device and the errors went away.

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Title:
  update-grub complains about non-existent drives

Status in grub2 package in Ubuntu:
  New

Bug description:
  sudo update-grub

  Sourcing file `/etc/default/grub'
  Sourcing file `/etc/default/grub.d/init-select.cfg'
  Generating grub configuration file ...
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
  Found linux image: /boot/vmlinuz-5.0.0-17-generic
  Found initrd image: /boot/initrd.img-5.0.0-17-generic
  Found linux image: /boot/vmlinuz-5.0.0-16-generic
  Found initrd image: /boot/initrd.img-5.0.0-16-generic
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
    /dev/sdc: open failed: No medium found
    /dev/sdd: open failed: No medium found
    /dev/sde: open failed: No medium found
    /dev/sdf: open failed: No medium found
  Adding boot menu entry for EFI firmware configuration
  done

  --

  lsblk

  NAME                     MAJ:MIN RM  SIZE RO TYPE  MOUNTPOINT
  sda                        8:0    0  3.7T  0 disk  
  ├─sda1                     8:1    0  512M  0 part  /boot/efi
  ├─sda2                     8:2    0  732M  0 part  /boot
  └─sda3                     8:3    0  3.7T  0 part  
    └─sda3_crypt           253:0    0  3.7T  0 crypt 
      ├─kubuntu--vg-swap_1 253:1    0  976M  0 lvm   [SWAP]
      └─kubuntu--vg-root   253:2    0  3.7T  0 lvm   /
  sdb                        8:16   0  3.7T  0 disk  
  └─sdb1                     8:17   0  3.7T  0 part  
  sdg                        8:96   0  7.3T  0 disk  
  └─sdg1                     8:97   0  7.3T  0 part  /media/scott/8TB Ext Drive
  sr0                       11:0    1 15.7G  0 rom   

  --

  cat /etc/default/grub

  GRUB_DEFAULT=0
  GRUB_TIMEOUT=10
  GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
  GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on"
  GRUB_CMDLINE_LINUX=""

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: grub2-common 2.02+dfsg1-12ubuntu3
  ProcVersionSignature: Ubuntu 5.0.0-17.18-generic 5.0.8
  Uname: Linux 5.0.0-17-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu3
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Tue Jun 25 15:05:29 2019
  InstallationDate: Installed on 2019-06-14 (10 days ago)
  InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190614)
  SourcePackage: grub2
  UpgradeStatus: No upgrade log present (probably fresh install)

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