[Bug 595138] Re: Settings in /etc/hdparm.conf are not applied during boot

[Karl-Wilhelm Rips]

In Ubuntu 22.04.1 (jammy), package version `9.60+ds-1build3` of `hdparm` is
included. `hdparm.patch` (see #37) is included in this package (see file
`/usr/lib/hdparm/hdparm-functions`, lines 108 to 120). But this patch can't fix
the issue:

 1. Line  78:  
    
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    local WANTED_DISK="$1"
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    
    Sets `WANTED_DISK` as configured in `/etc/hdparm.conf`, i.e.
    `/dev/disk/by-id/ata-…`.

 2. Lines 113 and 114:  
    
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                    DISC=$(readlink -m "$KEY")                      
                                    DISC=${DISC%%[[:digit:]]*}
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    
    Resolves symbolic link. `DISC` is now `/dev/sd…` for example.

 3. Lines 228 to 232:
    
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                if [ -n "$OPTIONS" ] && [ "$DISC" = "$WANTED_DISK" ]
                                then                                                
                                    echo $OPTIONS                                   
                                    return 0                                        
                                fi
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    
    If options for the disk have been set in `/etc/hdparm.conf` and `DISC` and
   `WANTED_DISK` are equal, the options are printed. But this will not happen
    because `DISC` contains resolved symbolic link (`/dev/sd…`) whereas
    `WANTED_DISK` contains original value according to `/etc/hdparm.conf`
    (`/dev/disk/by-id/ata-…`). Hence, they are not equal!

Therefore, `hdparm.patch` doesn't fix this issue.

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https://bugs.launchpad.net/bugs/595138

Title:
  Settings in /etc/hdparm.conf are not applied during boot

Status in hdparm package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: hdparm

  After upgrade to Lucid the hard drives never spindown. The hdparm
  spindown settings (and most likely others) in /etc/hdparm.conf are not
  being applied during boot.

  This seems to have happened after removing the init.d script.

  
  lsb_release -rd
  Description:    Ubuntu 10.04 LTS
  Release:        10.04

  
  apt-cache policy hdparm
  hdparm:
    Installed: 9.15-1ubuntu9
    Candidate: 9.15-1ubuntu9
    Version table:
   *** 9.15-1ubuntu9 0
          500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
          100 /var/lib/dpkg/status

  
  cat /etc/hdparm.conf
  /dev/sda {
      spindown_time = 240
  }
  /dev/sdb {
      spindown_time = 240
  }
  /dev/sdc {
      spindown_time = 240
  }
  /dev/sdd {
      spindown_time = 240
  }
  /dev/sde {
      spindown_time = 240
  }
  /dev/sdf {
      spindown_time = 240
  }
  /dev/sdg {
      spindown_time = 240
  }

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