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  1. #1
    Untangler
    Join Date
    May 2008
    Posts
    352

    Default Why is "microcode" not installed?

    I was looking at speeding up boot times and came across somewhere a suggestion to make sure "microcode" was installed. Checking my Untangle showed it is not installed. Don't know if it will boot faster or not, probably not. But I wonder why it is not installed? From the debian wiki.
    Processors from Intel and AMD may need updates to their microcode to operate correctly. These updates fix bugs/errata that can cause anything from incorrect processing, to code and data corruption, and system lockups.

    It is very difficult to know for sure whether you need a microcode update or not, but it is not safe at all to just ignore them. You might not notice their effect and have precious data silently corrupted, or an important program silently misbehave. Or you could experience one of those unexplainable and infrequent software issues (such as kernel oops, application segfaults) or hardware issues (including sudden reboots and hangs).
    https://wiki.debian.org/Microcode

    Build: 16.2.2.20210223T082805.9e9db41866-1buster
    Kernel: 4.19.0-11-untangle-amd64
    balrog likes this.

  2. #2
    Untangle Ninja sky-knight's Avatar
    Join Date
    Apr 2008
    Location
    Phoenix, AZ
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    25,935

    Default

    See those "non-free" flags?

    That basically means no Debian distro CAN use them, because it's a violation of licensing. End users can use them, but distributing them is another matter.

    Not to mention in this case it's horrifically processor specific.
    Rob Sandling, BS:SWE, MCP
    NexgenAppliances.com
    Phone: 866-794-8879 x201
    Email: support@nexgenappliances.com

  3. #3
    Untangler
    Join Date
    May 2008
    Posts
    352

    Default

    Well I see the "microcode" installed on proxmox so I hope they are not violating the rules. I didn't install it as I don't think I ever paid attention to it.
    Code:
    root@pve:~# dpkg -l |grep microcode
    ii  amd64-microcode                      3.20181128.1                       amd64        Processor microcode firmware for AMD CPUs
    Anyway just thought it may play a part in some of the mysterious crash or reboot threads that pop up occasionally.

    Thanks

  4. #4
    Untangle Ninja sky-knight's Avatar
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    Apr 2008
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    Phoenix, AZ
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    Default

    You know... you're right that might explain some of the IPSec / L2TP crashes actually...
    Rob Sandling, BS:SWE, MCP
    NexgenAppliances.com
    Phone: 866-794-8879 x201
    Email: support@nexgenappliances.com

  5. #5
    Untangler
    Join Date
    Mar 2018
    Location
    Toronto, Ontario
    Posts
    37

    Default

    Thank you for this. installed and rebooted on mine, works fine. Untangle boots faster from my unscientific test. Should have rebooted without the microcode for base speed test.

    Results:
    root@untangle:/etc/apt# uname -a
    Linux untangle.home.local 4.19.0-11-untangle-amd64 #1 SMP Debian 4.19.146-1+untangle1buster (2020-09-29) x86_64 GNU/Linux
    root@untangle:/etc/apt# dpkg -l | grep microcode
    ii intel-microcode 3.20210216.1~deb10u1 amd64 Processor microcode firmware for Intel CPUs
    ii iucode-tool 2.3.1-1 amd64 Intel processor microcode tool

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