[Bug 1293152] Re: fstrim-all weekly cron generate noise when hdparm isn't installed or on a VM; noisy in VMs

[Matthew L. Dailey]

I have tested util-linux 2.20.1-5.1ubuntu20.1 on two systems that were
exhibiting symptoms of this bug and can verify that it is fixed in this
version. I'll add the verification-done tag to this bug.

Details are below - let me know if anything else is needed.

On Dell M610 (mirrored drives on a CERC6i):

# lsb_release -rd
Description:    Ubuntu 14.04 LTS
Release:    14.04

Prior to upgrade:
# /sbin/fstrim-all
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0b 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

# apt-cache policy util-linux
util-linux:
  Installed: 2.20.1-5.1ubuntu20
  Candidate: 2.20.1-5.1ubuntu20
  Version table:
 *** 2.20.1-5.1ubuntu20 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

After upgrading:
# /sbin/fstrim-all
(no output)

# apt-cache policy util-linux
util-linux:
  Installed: 2.20.1-5.1ubuntu20.1
  Candidate: 2.20.1-5.1ubuntu20.1
  Version table:
 *** 2.20.1-5.1ubuntu20.1 0
        500 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     2.20.1-5.1ubuntu20 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages


On VMware ESXi 5.5:

# lsb_release -rd
Description:    Ubuntu 14.04 LTS
Release:    14.04

Prior to upgrade:
# /sbin/fstrim-all
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

# apt-cache policy util-linux
util-linux:
  Installed: 2.20.1-5.1ubuntu20
  Candidate: 2.20.1-5.1ubuntu20
  Version table:
 *** 2.20.1-5.1ubuntu20 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

After upgrading:
# /sbin/fstrim-all
(no output)

# apt-cache policy util-linux
util-linux:
  Installed: 2.20.1-5.1ubuntu20.1
  Candidate: 2.20.1-5.1ubuntu20.1
  Version table:
 *** 2.20.1-5.1ubuntu20.1 0
        500 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     2.20.1-5.1ubuntu20 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

** Tags added: verification-done

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https://bugs.launchpad.net/bugs/1293152

Title:
  fstrim-all weekly cron generate noise when hdparm isn't installed or
  on a VM; noisy in VMs

Status in “util-linux” package in Ubuntu:
  Fix Released
Status in “util-linux” source package in Trusty:
  Fix Committed
Status in “util-linux” source package in Utopic:
  Fix Released

Bug description:
  Every week, the fstrim-all cron job sends such email alert to the
  admin if hdparm isn't available:

    hdparm not available, cannot TRIM

  The cron job doesn't fail, thanks to LP: #1278048, but those emails
  are probably not very useful to the admin.

  $ lsb_release -rd
  Description:	Ubuntu Trusty Tahr (development branch)
  Release:	14.04
  $ apt-cache policy util-linux
  util-linux:
    Installed: 2.20.1-5.1ubuntu16
    Candidate: 2.20.1-5.1ubuntu16
    Version table:
   *** 2.20.1-5.1ubuntu16 0
          500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
          100 /var/lib/dpkg/status

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