[Bug 2057989] Re: Unable to install noble-daily (20240315) because it can't find grub-pc

[Dan Bungert]

An EFI version of this bug also was filed.  Please include the
grub/shim/efi packages listed in ship-live:

 * grub-efi-amd64 [amd64]                                                                                    
 * grub-efi-amd64-signed [amd64]                                                                             
 * grub-efi-arm64 [arm64]                                                                                    
 * grub-efi-amd64-signed [arm64]                                                                             
 * grub-pc                                                                                                   
 * shim-signed                                                                                               
 * efibootmgr                                                                                                


** Summary changed:

- Unable to install noble-daily (20240315) because it can't find grub-pc
+ Unable to install noble-daily (20240315) because it can't find grub-pc / grub-efi*

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Title:
  Unable to install noble-daily (20240315) because it can't find grub-pc
  / grub-efi*

Status in subiquity package in Ubuntu:
  Invalid
Status in xubuntu-meta package in Ubuntu:
  Confirmed

Bug description:
  When testing the "Install (no Network) in Xubuntu Desktop amd64 in
  Noble Daily" on a QEMU virtual machine started with the command:

  qemu-system-x86_64 -accel kvm -net none -hda xub2404Daily.img -cdrom
  noble-desktop-amd64.iso -cpu host -smp cores=4,threads=2 -m 4G -device
  qxl-vga,xres=1280,yres=720 -boot menu=on

  The install failed. I have attached the entire /var/log from the live
  system with the data. The most relevant log seems to be on the
  installer directory:

          Running command ['unshare', '--fork', '--pid', '--', 'chroot', '/target', 'apt-get', '--quiet', '--assume-yes', '--option=Dpkg::options::=--force-unsafe-io', '--option=Dpkg::Options::=--force-confold', 'install', '--download-only', 'grub-pc'] with allowed return codes [0] (capture=False)
          Reading package lists...
          Building dependency tree...
          Reading state information...
          Package grub-pc is not available, but is referred to by another package.
          This may mean that the package is missing, has been obsoleted, or
          is only available from another source
          However the following packages replace it:
            grub-common
          
          E: Package 'grub-pc' has no installation candidate
          Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
          TIMED subp(['udevadm', 'settle']): 0.020
          Running command ['mount', '--make-private', '/target/sys'] with allowed return codes [0] (capture=False)
          Running command ['umount', '/target/sys'] with allowed return codes [0] (capture=False)
          Running command ['mount', '--make-private', '/target/run'] with allowed return codes [0] (capture=False)
          Running command ['umount', '/target/run'] with allowed return codes [0] (capture=False)
          Running command ['mount', '--make-private', '/target/proc'] with allowed return codes [0] (capture=False)
          Running command ['umount', '/target/proc'] with allowed return codes [0] (capture=False)
          Running command ['mount', '--make-private', '/target/dev'] with allowed return codes [0] (capture=False)
          Running command ['umount', '/target/dev'] with allowed return codes [0] (capture=False)
          finish: cmd-install/stage-curthooks/builtin/cmd-curthooks: FAIL: Installing packages on target system: ['grub-pc']

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