[Bug 1873008] Re: package lubuntu-grub-theme (not installed) failed to install/upgrade: error creating symbolic link './boot/grub/themes/lubuntu-grub-theme/icons/ubuntu.png': Operation not permitted - symbolic link on vfat filesystem

[apt-ghetto]

@jibel Your typical use case (install in BIOS mode and reboot into UEFI
mode) ends typically in an error. There is no bootloader installed on
/boot/efi/EFI/ubuntu and there is no boot entry in the NVRAM, which
would point to shim or grub on the ESP.

The typical user has to replace grub-pc with grub-efi-* and create a
boot entry in the NVRAM (/sys/firmware/efi doesn't exist, neither in the
installed system, nor in the live-system). I guess, most users won't  do
that. They would simply reinstall in the desired mode.

Another possible problem I spotted: The installer created a msdos partition 
table on an empty disk (which isn't a problem). The problem starts, if the user 
installs Windows on this disk. Windows will be installed in BIOS mode and if 
you change the boot mode of Ubuntu, you don't have a dualboot anymore.
I didn't test it, but if the ESP is created as a logical partition, there are 
surely errors, if the system is booted in UEFI mode.

Meanwhile, I try to find a Lubuntu dev to fix lubuntu-artwork.

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https://bugs.launchpad.net/bugs/1873008

Title:
  package lubuntu-grub-theme (not installed) failed to install/upgrade:
  error creating symbolic link './boot/grub/themes/lubuntu-grub-
  theme/icons/ubuntu.png': Operation not permitted - symbolic link on
  vfat filesystem

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