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

[Matthew L. Dailey]

Unless I'm missing something, I don't think the fix here was fully
successful. In the case of a VMware VM running 14.04, hdparm spits out a
sense data error on stderr:

# hdparm -I /dev/sda1 1>/dev/null
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

So, fstrim-all also spits this out on stderr which then gets sent to
root's mail by cron.weekly:

# /sbin/fstrim-all 1>/dev/null
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

It looks like the intent was to have the stderr of hdparm piped to
/dev/null, but this isn't inside the backticks in the fstrim-all script.
To fix this, I think we just need the attached trivial patch.

This is mostly just an annoyance, but it would be nice to get fixed. If
it makes more sense to open this as a new bug, let me know.

** Patch added: "fstrim-all.patch"
   https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1293152/+attachment/4094509/+files/fstrim-all.patch

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to util-linux in Ubuntu.
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

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

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1293152/+subscriptions