[Bug 1615751] Re: ROOTDELAY= causes unnecessary delay in boot

Thu Aug 25 16:15:23 UTC 2016

some discussion https://irclogs.ubuntu.com/2016/08/23/%23ubuntu-
devel.html#t11:36 including an un-tested fix from me.

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Title:
  ROOTDELAY= causes unnecessary delay in boot

Status in cloud-images:
  New
Status in initramfs-tools package in Ubuntu:
  Confirmed
Status in initramfs-tools source package in Yakkety:
  Confirmed

Bug description:
  I launched 2 different yakkety systems on azure instance types:
    Basic_A0
    Standard_D1_v2
  More information what those things are at :
    https://azure.microsoft.com/en-us/pricing/details/virtual-machines/linux/

  systemd-analize says:

  ## Basic A0
  smoser at sm-y-d1v2-1:~$ systemd-analyze
  Startup finished in 5min 8.172s (kernel) + 42.670s (userspace) = 5min 50.842s

  ## Standard D1 v2
  $ systemd-analyze
  Startup finished in 5min 13.347s (kernel) + 1min 31.532s (userspace) = 6min 44.879s

  Systemd thinks that more than 5 minutes passed between the kernel
  being loaded and /sbin/init being run.  I'm pretty sure this isn't
  just a bad clock, as the system actually is not reachable for
  something like 6 minutes after boot, so it seems sane.  Additionally,
  I have some scripts that compare launch time and code ran inside the
  vm via cloud-init and they agree.

  For example:
    starting at Mon, 22 Aug 2016 15:37:43 +0000
    uptime: 349.77 seconds
    you launched me at: Mon, 22 Aug 2016 15:30:11 +0000
    it is now         : Mon, 22 Aug 2016 15:37:43 +0000
    kernel booted     : Mon, 22 Aug 2016 15:31:54 +0000
    launch to kernel boot: 103 seconds
    launch to user-data  : 452   seconds

  The full dmesg is attached, but interesting bits are
  [    0.815692] Trying to unpack rootfs image as initramfs...
  [    1.289093] Freeing initrd memory: 35660K (ffff88001d47d000 - ffff88001f750000)
  ...
  [    7.820798] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/input/input3
  [    7.834419] input: AT Translated Set 2 keyboard as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:07/VMBUS:01/vmbus_5/serio2/input/input5
  [   72.464227] random: nonblocking pool is initialized
  [  305.527657] Btrfs loaded
  [  305.628091] blk_update_request: I/O error, dev fd0, sector 0
  [  305.632007] floppy: error -5 while reading block 0
  [  306.027898] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
  [  308.901437] systemd[1]: systemd 231 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
  [  308.925746] systemd[1]: Detected virtualization microsoft.
  [  308.933658] systemd[1]: Detected architecture x86-64.
  [  308.999041] systemd[1]: Set hostname to <ubuntu>.
  ...

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: linux-image-4.4.0-34-generic 4.4.0-34.53
  ProcVersionSignature: User Name 4.4.0-34.53-generic 4.4.15
  Uname: Linux 4.4.0-34-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Aug 22 15:37 seq
   crw-rw---- 1 root audio 116, 33 Aug 22 15:37 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.3-0ubuntu7
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Mon Aug 22 17:31:18 2016
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  MachineType: Microsoft Corporation Virtual Machine
  PciMultimedia:

  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 hyperv_fb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic root=UUID=314ea127-227e-4b64-b5b4-d70ab0fb7eb7 ro console=tty1 console=ttyS0 earlyprintk=ttyS0 rootdelay=300
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-34-generic N/A
   linux-backports-modules-4.4.0-34-generic  N/A
   linux-firmware                            1.160
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/23/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 090006
  dmi.board.name: Virtual Machine
  dmi.board.vendor: Microsoft Corporation
  dmi.board.version: 7.0
  dmi.chassis.asset.tag: 7783-7084-3265-9085-8269-3286-77
  dmi.chassis.type: 3
  dmi.chassis.vendor: Microsoft Corporation
  dmi.chassis.version: 7.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr090006:bd05/23/2012:svnMicrosoftCorporation:pnVirtualMachine:pvr7.0:rvnMicrosoftCorporation:rnVirtualMachine:rvr7.0:cvnMicrosoftCorporation:ct3:cvr7.0:
  dmi.product.name: Virtual Machine
  dmi.product.version: 7.0
  dmi.sys.vendor: Microsoft Corporation

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