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- microcode.ctl for Debian
- ----------------------
-
- 1- The microcode_ctl works only on kernel the 2.2.18 and later or
- on 2.4.0 and later.
-
- 2- On kernel until 2.6.19, there is a bug that prevent to
- load new intel microcodes. So, if you don't update the kernel,
- the installation program will install a shorter version of
- microcode data.
-
- 3- If you recompile the kernel, make sure to include the microcode
- support (CONFIG_MICROCODE).
- (See 'kernel-package' and 'kernel-source-*' packages)
-
- 4- microcode.ctl needs the microcode device to work.
- Normally the device is in /dev/cpu/microcode , and the
- installation script will create it if necessary.
-
- If you use 'devfsd' (only with newer kernel) the device is
- created only in /dev/misc/cpu .
- If you use 'udev', the device is in /dev/microcode
-
- In these cases, the boot script will find the device
- correctly, but if you use the command "microcode_ctl", you
- should explicy give the device path, using the option:
- "-d DEVICE_NAME".
-
-
- OBTAINING THE INTEL MICROCODE
-
- You have two options to opbtain the microcode:
-
- - installing the "intel-microcode" package (on non-free section)
-
- - Using the program "update-intel-microcode" (included in this
- packages), which will download the newer microcode from Intel
- website.
-
- As alternative you can manually download the microcode from
- Intel website:
- http://downloadcenter.intel.com/Detail_Desc.aspx?ProductID=483&DwnldID=14303
- and put the microcode in /usr/share/misc/intel-microcode.dat .
-
- -- Giacomo Catenazzi <cate@debian.org>, Wed, 27 Feb 2008 08:13:27 +0100
-
-