[Bug 848782] Re: Serial console not enabled for passphrase prompt when using LUKS

[Dave Jones]

If this is still relevant, I'm not sure flash-kernel is the right place
for it anymore:

The flash-kernel-installer package isn't produced (as we don't produce
udebs anymore), and generally speaking, flash-kernel has little to do
with whatever appears on the boot partition in images. For instance, in
the case of the pi images, that's down to the gadget snap (although
ideally, the gadget snap would be calling something in flash-kernel to
produce that output, but that's not the case currently).

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Title:
  Serial console not enabled for passphrase prompt when using LUKS

Status in flash-kernel package in Ubuntu:
  Confirmed

Bug description:
  I am using http://ports.ubuntu.com/dists/oneiric/main/installer-
  armel/current/images/omap4/netboot/ to install encrypted guided LVM
  over the serial port. It installs but the installed bootloader does
  not have "console=ttyO2,115200", causing the passphrase prompt to not
  appear on reboot. This means that I cannot enter the passphrase so the
  system is not bootable.

  Workaround: edit the SD card FAT partition as follows:

   1. dd bs=1 skip=72 if=boot.scr of=boot.script
   2. Edit boot.script and add console=ttyO2,115200
   3. Run "mkimage -A arm -O linux -T script -C none -d boot.script boot.scr" (from the u-boot-tools package)

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