Linux EFI stub CMDLINE problem: initrd is ignored

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
0
down vote

favorite












I have a weird problem with my EFI stub kernel: I'm using the CMDLINE kernel parameter to pass parameters "root=xxx ro rootwait initrd=microcode.img" (microcode.img is an initrd containing the CPU microcode). I compile the kernel as EFI stub, and copy it to EFIBootbootx64.efi on my EFI system partition. The system boots up okay, the "root=" etc. have been recognized, but the microcode update didn't happen (as per /proc/cpuinfo; it shows the microcode version that's built in, not the one in microcode.img). But when I launch the EFI Shell on boot, and boot bootx64.efi manually with exactly the same command line, the microcode gets updated (as per /proc/cpuinfo; it now shows the microcode version in microcode.img). In both cases, /proc/cmdline gives exactly the same, including "... initrd=microcode.img". It's just as if the initrd statement in the kernel CMDLINE is completely ignored. What am I doing wrong?






uefi initrd






share







New contributor




Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.























    up vote
    0
    down vote

    favorite












    I have a weird problem with my EFI stub kernel: I'm using the CMDLINE kernel parameter to pass parameters "root=xxx ro rootwait initrd=microcode.img" (microcode.img is an initrd containing the CPU microcode). I compile the kernel as EFI stub, and copy it to EFIBootbootx64.efi on my EFI system partition. The system boots up okay, the "root=" etc. have been recognized, but the microcode update didn't happen (as per /proc/cpuinfo; it shows the microcode version that's built in, not the one in microcode.img). But when I launch the EFI Shell on boot, and boot bootx64.efi manually with exactly the same command line, the microcode gets updated (as per /proc/cpuinfo; it now shows the microcode version in microcode.img). In both cases, /proc/cmdline gives exactly the same, including "... initrd=microcode.img". It's just as if the initrd statement in the kernel CMDLINE is completely ignored. What am I doing wrong?






    uefi initrd






    share







    New contributor




    Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have a weird problem with my EFI stub kernel: I'm using the CMDLINE kernel parameter to pass parameters "root=xxx ro rootwait initrd=microcode.img" (microcode.img is an initrd containing the CPU microcode). I compile the kernel as EFI stub, and copy it to EFIBootbootx64.efi on my EFI system partition. The system boots up okay, the "root=" etc. have been recognized, but the microcode update didn't happen (as per /proc/cpuinfo; it shows the microcode version that's built in, not the one in microcode.img). But when I launch the EFI Shell on boot, and boot bootx64.efi manually with exactly the same command line, the microcode gets updated (as per /proc/cpuinfo; it now shows the microcode version in microcode.img). In both cases, /proc/cmdline gives exactly the same, including "... initrd=microcode.img". It's just as if the initrd statement in the kernel CMDLINE is completely ignored. What am I doing wrong?






      uefi initrd






      share







      New contributor




      Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I have a weird problem with my EFI stub kernel: I'm using the CMDLINE kernel parameter to pass parameters "root=xxx ro rootwait initrd=microcode.img" (microcode.img is an initrd containing the CPU microcode). I compile the kernel as EFI stub, and copy it to EFIBootbootx64.efi on my EFI system partition. The system boots up okay, the "root=" etc. have been recognized, but the microcode update didn't happen (as per /proc/cpuinfo; it shows the microcode version that's built in, not the one in microcode.img). But when I launch the EFI Shell on boot, and boot bootx64.efi manually with exactly the same command line, the microcode gets updated (as per /proc/cpuinfo; it now shows the microcode version in microcode.img). In both cases, /proc/cmdline gives exactly the same, including "... initrd=microcode.img". It's just as if the initrd statement in the kernel CMDLINE is completely ignored. What am I doing wrong?






      uefi initrd




      uefi initrd





      share







      New contributor




      Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






      New contributor




      Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 11 mins ago









      Hans Malissa

      11




      11




      New contributor




      Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Hans Malissa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.

























          active

          oldest

          votes











          Your Answer







          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "106"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          convertImagesToLinks: false,
          noModals: false,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );






          Hans Malissa is a new contributor. Be nice, and check out our Code of Conduct.









           

          draft saved


          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f477889%2flinux-efi-stub-cmdline-problem-initrd-is-ignored%23new-answer', 'question_page');

          );

          Post as a guest






















          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          Hans Malissa is a new contributor. Be nice, and check out our Code of Conduct.









           

          draft saved


          draft discarded


















          Hans Malissa is a new contributor. Be nice, and check out our Code of Conduct.












          Hans Malissa is a new contributor. Be nice, and check out our Code of Conduct.











          Hans Malissa is a new contributor. Be nice, and check out our Code of Conduct.













           


          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f477889%2flinux-efi-stub-cmdline-problem-initrd-is-ignored%23new-answer', 'question_page');

          );

          Post as a guest
































































          -

          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Se
          Read more

          Bahrain

          Image
          For other uses, see Bahrain (disambiguation). Sovereign island state in the Persian Gulf Kingdom of Bahrain مملكة البحرين   (Arabic) Mamlakat al-Baḥrayn Flag Coat of arms Anthem:  نشيد البحرين الوطني Bahrainona Our Bahrain Location of   Bahrain    (circled in red) Capital and largest city Manama 26°13′N 50°35′E  /  26.217°N 50.583°E  / 26.217; 50.583 Official languages Arabic Ethnic groups (2010 [1] ) 50.7% Arab (46% Bahrani, 4.7% other Arabs) 45.5% Asian 1% European 1.2% Others Religion Islam Demonym(s) Bahraini Government Unitary constitutional monarchy • King Hamad bin Isa Al Khalifa • Crown Prince Salman bin Hamad bin Isa Al Khalifa • Prime Minister Khalifa bin Salman Al Khalifa Legislature National Assembly • Upper house Consultative Council • Lower house Council of Representatives Independence • Declared Independence [2] 14 August 1971 • from United Kingdom [1] 15 August 1971 • Admitted to the United Nations 21 September 1971 • Kingdom of Bahrain 14 February 2002
          Read more

          Postfix configuration issue with fips on centos 7; mailgun relay

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 0 down vote favorite I am trying to setup postfix to relay all mail generated on the local machine via SMTP to a mailgun relay. I have used the mailgun relay before with success on an ubuntu server, but I am migrating to a Centos 7 server which I will be running in FIPS mode. There error log is below, slightly sanitized. I have a small enough network that I choose to have each machine reach out to mailgun individually (this the loopback-only, 127.0.0.0/8 restrictions) and no firewall open port allowing smtp in to the machine. I assume the FIPS mode (and with it disabling of MD5) is causing problems, but I don't know how to overcome it or if it is even possible for tls_fprint to use some supported hash such as sha256 or sha512. However, the relay=none is slightly concerning since I have relayhost set, but perhaps that is because the smtp process is failing? Any help would be appreciated! postconf -n: alias_database = hash:/etc/alia
          Read more