qemu guest serial output to console of host












0














I have been searching for a solution for some time now and where I have found several threads that seem to have helped other people, those solutions do not seem to work for me. I would like to start a qemu guest via cmdline and have the output of the guest serial port in the terminal that started the quest. Details; host=ubuntu 18.04, guest=debian 9. The ISO i used to create the guest was debian-9.6.0-i386-netinst.iso. I used normal install but with no desktop. I hid the grub loader screen and it boots to the username prompt. I have tried many different options from various threads including "-nographics -serial stdio -append and others" the append gave me a kernel error and depending on the combination of switches I have had some errors, but most often the terminal just sits there and blinks. I have changed the debian grub as many people have suggested on other threads, I will attach the grub config. After modifying the grub I did do a update-grub.



Here is my grub config:



GRUB_DEFAULT=0
GRUB_TIMEOUT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFUALT="console=ttys0 console=tty0"
GRUB_CMDLINE_LINUX="console=tty0 console=ttys0,9600n8"
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_DISABLE_OS_PROBER=true


here is the cmd I am currently using to start qemu



qemu-system-i386 -hda deb.qcow2 -m 1024 -net nic -net user -serial stdio 


I am not sure if the problem is in the host, the guest or the cmd to start it. Any assistance would be great. Thank you in advance.










share|improve this question





























    0














    I have been searching for a solution for some time now and where I have found several threads that seem to have helped other people, those solutions do not seem to work for me. I would like to start a qemu guest via cmdline and have the output of the guest serial port in the terminal that started the quest. Details; host=ubuntu 18.04, guest=debian 9. The ISO i used to create the guest was debian-9.6.0-i386-netinst.iso. I used normal install but with no desktop. I hid the grub loader screen and it boots to the username prompt. I have tried many different options from various threads including "-nographics -serial stdio -append and others" the append gave me a kernel error and depending on the combination of switches I have had some errors, but most often the terminal just sits there and blinks. I have changed the debian grub as many people have suggested on other threads, I will attach the grub config. After modifying the grub I did do a update-grub.



    Here is my grub config:



    GRUB_DEFAULT=0
    GRUB_TIMEOUT=0
    GRUB_TIMEOUT_STYLE=hidden
    GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
    GRUB_CMDLINE_LINUX_DEFUALT="console=ttys0 console=tty0"
    GRUB_CMDLINE_LINUX="console=tty0 console=ttys0,9600n8"
    GRUB_HIDDEN_TIMEOUT=0
    GRUB_HIDDEN_TIMEOUT_QUIET=true
    GRUB_DISABLE_OS_PROBER=true


    here is the cmd I am currently using to start qemu



    qemu-system-i386 -hda deb.qcow2 -m 1024 -net nic -net user -serial stdio 


    I am not sure if the problem is in the host, the guest or the cmd to start it. Any assistance would be great. Thank you in advance.










    share|improve this question



























      0












      0








      0







      I have been searching for a solution for some time now and where I have found several threads that seem to have helped other people, those solutions do not seem to work for me. I would like to start a qemu guest via cmdline and have the output of the guest serial port in the terminal that started the quest. Details; host=ubuntu 18.04, guest=debian 9. The ISO i used to create the guest was debian-9.6.0-i386-netinst.iso. I used normal install but with no desktop. I hid the grub loader screen and it boots to the username prompt. I have tried many different options from various threads including "-nographics -serial stdio -append and others" the append gave me a kernel error and depending on the combination of switches I have had some errors, but most often the terminal just sits there and blinks. I have changed the debian grub as many people have suggested on other threads, I will attach the grub config. After modifying the grub I did do a update-grub.



      Here is my grub config:



      GRUB_DEFAULT=0
      GRUB_TIMEOUT=0
      GRUB_TIMEOUT_STYLE=hidden
      GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
      GRUB_CMDLINE_LINUX_DEFUALT="console=ttys0 console=tty0"
      GRUB_CMDLINE_LINUX="console=tty0 console=ttys0,9600n8"
      GRUB_HIDDEN_TIMEOUT=0
      GRUB_HIDDEN_TIMEOUT_QUIET=true
      GRUB_DISABLE_OS_PROBER=true


      here is the cmd I am currently using to start qemu



      qemu-system-i386 -hda deb.qcow2 -m 1024 -net nic -net user -serial stdio 


      I am not sure if the problem is in the host, the guest or the cmd to start it. Any assistance would be great. Thank you in advance.










      share|improve this question















      I have been searching for a solution for some time now and where I have found several threads that seem to have helped other people, those solutions do not seem to work for me. I would like to start a qemu guest via cmdline and have the output of the guest serial port in the terminal that started the quest. Details; host=ubuntu 18.04, guest=debian 9. The ISO i used to create the guest was debian-9.6.0-i386-netinst.iso. I used normal install but with no desktop. I hid the grub loader screen and it boots to the username prompt. I have tried many different options from various threads including "-nographics -serial stdio -append and others" the append gave me a kernel error and depending on the combination of switches I have had some errors, but most often the terminal just sits there and blinks. I have changed the debian grub as many people have suggested on other threads, I will attach the grub config. After modifying the grub I did do a update-grub.



      Here is my grub config:



      GRUB_DEFAULT=0
      GRUB_TIMEOUT=0
      GRUB_TIMEOUT_STYLE=hidden
      GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
      GRUB_CMDLINE_LINUX_DEFUALT="console=ttys0 console=tty0"
      GRUB_CMDLINE_LINUX="console=tty0 console=ttys0,9600n8"
      GRUB_HIDDEN_TIMEOUT=0
      GRUB_HIDDEN_TIMEOUT_QUIET=true
      GRUB_DISABLE_OS_PROBER=true


      here is the cmd I am currently using to start qemu



      qemu-system-i386 -hda deb.qcow2 -m 1024 -net nic -net user -serial stdio 


      I am not sure if the problem is in the host, the guest or the cmd to start it. Any assistance would be great. Thank you in advance.







      ubuntu debian console qemu serial






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      edited Dec 6 at 0:38

























      asked Dec 6 at 0:32









      Goff

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