[Bug 1104156] Re: "Continue to wait, or Press S to skip mounting or M for manual recovery" when waiting for LUKS passphrase

[Sebastien Bacher]

(unsubscribing the sponsor team, Steve already reviewed/commented on the
patch and it seems it's not the right fix for the issue so doesn't need
to be sponsored)

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https://bugs.launchpad.net/bugs/1104156

Title:
  "Continue to wait, or Press S to skip mounting or M for manual
  recovery" when waiting for LUKS passphrase

Status in “plymouth” package in Ubuntu:
  New

Bug description:
  Hello,

  (On Quantal) When using passphrase-protected LUKS encryped partition,
  'mountall' shows the "Continue to wait, or Press S to skip mounting or
  M for manual recovery" after the (hardcoded) 3-second BOREDOM_TIMEOUT.

  This is:
   - inappropriate as long as a passphrase is being prompted for
   - useless since the prompt intercepts the key presses (and prevents the S or M option to be used)
   - inelegant (any potentially misleading)

  I first thought of adding a mountpoint-specific option to disable
  boredom messages for appropriate mountpoints. But adding yet-another
  option to the mountpoint stanza somehow seemed wrong.

  On the other hand, if cryptsetup fails after several passphrase
  attemps, one should still be given the choice to Skip or Manually
  recover the partition.

  I don't know how to handle a "state" tracking between 'cryptsetup' and
  'mountall', so that 'mountall' does not get bored as long as a
  passphrase is being prompted for.

  The best way I found to make that issue less "invasive" is to allow
  the boredom timeout to being extended (globally) when a particular
  system setup requires it.

  I thus attach a patch that allows to change the boredom timeout to the
  "dev_wait_time" (or ROOTDELAY, if it is undefined) via a new '--be-
  patient' option and configuration variables in /etc/default/mountall.

  Corresponding patched Quantal 'mountall' package should be available
  shortly from https://launchpad.net/~cedric.dufour/+archive/ppa/

  Hope it can help.

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