[Bug 1060296] Re: 'df /' reports Filesystem '-'

[Scott Moser]

I'm guessing this is a result of the contents of /etc/mtab changing from:
$ cat /etc/mtab
/dev/vda1 / ext4 rw 0 0
proc /proc proc rw,noexec,nosuid,nodev 0 0
sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0
none /sys/fs/fuse/connections fusectl rw 0 0
none /sys/kernel/debug debugfs rw 0 0
none /sys/kernel/security securityfs rw 0 0
udev /dev devtmpfs rw,mode=0755 0 0
devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=0620 0 0
tmpfs /run tmpfs rw,noexec,nosuid,size=10%,mode=0755 0 0
none /run/lock tmpfs rw,noexec,nosuid,nodev,size=5242880 0 0
none /run/shm tmpfs rw,nosuid,nodev 0 0
none /run/user tmpfs rw,noexec,nosuid,nodev,size=104857600,mode=0755 0 0
/dev/vdb /mnt ext3 rw,_netdev 0 0

to
$ cat /etc/mtab 
proc /proc proc rw,noexec,nosuid,nodev 0 0
sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0
udev /dev devtmpfs rw,mode=0755 0 0
devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=0620 0 0
tmpfs /run tmpfs rw,noexec,nosuid,size=10%,mode=0755 0 0
/dev/vdb /mnt ext3 rw,_netdev 0 0

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https://bugs.launchpad.net/bugs/1060296

Title:
  'df /' reports Filesystem '-'

Status in “coreutils” package in Ubuntu:
  New

Bug description:
  somewhere between beta-2 and 20121001, we have a change in df output:

  From:
   | $ cat /etc/cloud/build.info 
   | build_name: server
   | serial: 20120925
   | $ df -h /
   | Filesystem      Size  Used Avail Use% Mounted on
   | /dev/vda1       9.9G  1.1G  8.5G  11% /
   | $ dpkg-query --show coreutils
   | coreutils       8.13-3.2ubuntu1

  To:
   | $ cat /etc/cloud/build.info 
   | build_name: server
   | serial: 20121002
   | $ df -h /
   | Filesystem      Size  Used Avail Use% Mounted on
   | -               9.9G  1.1G  8.5G  11% /
   | $ dpkg-query --show coreutils
   | coreutils       8.13-3.2ubuntu2

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: coreutils 8.13-3.2ubuntu2
  ProcVersionSignature: User Name 3.5.0-16.25-generic 3.5.4
  Uname: Linux 3.5.0-16-generic i686
  ApportVersion: 2.6.1-0ubuntu1
  Architecture: i386
  Date: Tue Oct  2 16:07:59 2012
  Ec2AMI: ami-00000158
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: coreutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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