Package: hdparm
Version: 9.39-1+b1
Severity: normal

In the documentation provided with hdparm, there is the file

/usr/share/doc/hdparm/README.Debian.gz

which contains introductory generic information for hard disk tuning

QUOTE

 hdparm for Debian
  -----------------

General hard disk tuning:

  To get the best performance out of your hard drive turn on DMA support
  in the kernel and enable 32bit IO (-c) and multiple sector I/O (-m)
  with hdparm. You can find out the number to use for -m by using -i and
  reading MaxMultSect.


UNQUOTE

This information applies specifically to IDE disks which most users
are no longer using and will have migrated to SATA disks and the libata
interface.

Therefore this information should be marked as specific to old
IDE disks and neophyte users reading this file will not be
tempted to use inappropriate and potentially dangerous hdparm commands,
as in

 hdparm -m 8 /dev/sda

 /dev/sda:
 setting multcount to 8
 Use of -m is VERY DANGEROUS.
 Only the old IDE drivers work correctly with -m with kernels up to at
 least 2.6.29.
 libata drives may fail and get hung if you set this flag.
 Please supply the --yes-i-know-what-i-am-doing flag if you really want this.
 Program aborted.

Having read the README.Debian.gz, some neophyte users may be tempted to
just run the command with the  --yes-i-know-what-i-am-doing flag because
they assume that the information supplied in the README.Debian.gz file
(which is dated 2012-06-24 16:08 and therefore appears to be relatively
recent and up to date) is what they should do.

In view of this obsolete information, perhaps it would be wise for
the rest of the contents of the file to also be reviewed for
out of date and misleading information?


-- System Information:
Debian Release: 7.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: armel (armv5tel)

Kernel: Linux 2.6.32-5-kirkwood
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages hdparm depends on:
ii  libc6     2.13-38
ii  libgcc1   1:4.7.2-5
ii  lsb-base  4.1+Debian8

Versions of packages hdparm recommends:
ii  powermgmt-base  1.31

Versions of packages hdparm suggests:
pn  apmd  <none>

-- Configuration Files:
/etc/default/hdparm changed [not included]
/etc/hdparm.conf changed [not included]

-- no debconf information


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