[Bug 1651818] Re: busybox-initramfs needs different compile options to work with cryptroot-unlock

[Mark Foster]

Still an issue in bionic final beta....

To unlock root partition, and maybe others like swap, run `cryptroot-
unlock`


BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu3) built-in shell (ash)
Enter 'help' for a list of built-in commands.

# cryptroot-unlock
ps: invalid option -- 'e'
BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu3) multi-call binary.

Usage: ps

Show list of processes

	w	Wide output
	l	Long output
/bin/cryptroot-unlock: line 186: usleep: not found

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https://bugs.launchpad.net/bugs/1651818

Title:
  busybox-initramfs needs different compile options to work with
  cryptroot-unlock

Status in busybox package in Ubuntu:
  Confirmed
Status in cryptsetup package in Ubuntu:
  Confirmed

Bug description:
  The cryptroot-unlock script in the cryptsetup package does not work in initramfs.
  It fails because "ps -e" is not available in busybox for initramfs.
  When building the package with

  CONFIG_DESKTOP=y
  CONFIG_EXTRA_COMPAT=y

  the needed commands (ps, grep) with parameter are there and it works.
  Tetsted on Ubuntu GNOME 16.10.

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