[Bug 1154813] Re: Boot broken with initramfs-tools 0.103ubuntu0.5b1

[Martin Pitt]

Ah, I got it. The documentation of udev_monitor_receive_device() says

  "The monitor socket is by default set to NONBLOCK. A variant of poll()
on the file descriptor returned by udev_monitor_get_fd() should to be
used to wake up when new devices arrive, or alternatively the file
descriptor switched into blocking mode."

However, wait-for-root does

        while ((udev_device = udev_monitor_receive_device
(udev_monitor)) != NULL) {

and then just exits. So switching the socket to blocking is indeed the
right answer here.


** Changed in: initramfs-tools (Ubuntu)
   Importance: Undecided => Critical

** Changed in: initramfs-tools (Ubuntu)
       Status: New => In Progress

** Changed in: initramfs-tools (Ubuntu)
     Assignee: (unassigned) => Martin Pitt (pitti)

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https://bugs.launchpad.net/bugs/1154813

Title:
  Boot broken with initramfs-tools 0.103ubuntu0.5b1 - wait-for-root
  doesn't wait

Status in “initramfs-tools” package in Ubuntu:
  In Progress
Status in “systemd” package in Ubuntu:
  Invalid

Bug description:
  Hi

  Today I upgraded udev and initramfs-tools to version 0.103ubuntu0.5b1.

  The update of initramfs-tools seems to cause boot issues.
  As it doesn't wait long enough for /dev/by-uuid/ to come available, the boot cannot be completed.
  You get dropped into initramfs busybox.

  If you exit the busybox after some seconds, the system boots normally.

  Downgrading initramfs-tools fixes the issue.

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