How is kexec_load used?











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Looking at the manual page for the system call kexec_load, I didn't see any obvious way to use it.



There is no argument for a kernel file, an initial RAM disk, or a command line string.



kexec_file_load has parameters for file descriptors of files representing the kernel and there is a parameter for initial RAM disk as well for the command line; but I am more interested in how the first one is used.










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    You can take a look into the kexec-tools source code.
    – pah
    Jul 3 '16 at 4:03















up vote
5
down vote

favorite
2












Looking at the manual page for the system call kexec_load, I didn't see any obvious way to use it.



There is no argument for a kernel file, an initial RAM disk, or a command line string.



kexec_file_load has parameters for file descriptors of files representing the kernel and there is a parameter for initial RAM disk as well for the command line; but I am more interested in how the first one is used.










share|improve this question




















  • 1




    You can take a look into the kexec-tools source code.
    – pah
    Jul 3 '16 at 4:03













up vote
5
down vote

favorite
2









up vote
5
down vote

favorite
2






2





Looking at the manual page for the system call kexec_load, I didn't see any obvious way to use it.



There is no argument for a kernel file, an initial RAM disk, or a command line string.



kexec_file_load has parameters for file descriptors of files representing the kernel and there is a parameter for initial RAM disk as well for the command line; but I am more interested in how the first one is used.










share|improve this question















Looking at the manual page for the system call kexec_load, I didn't see any obvious way to use it.



There is no argument for a kernel file, an initial RAM disk, or a command line string.



kexec_file_load has parameters for file descriptors of files representing the kernel and there is a parameter for initial RAM disk as well for the command line; but I am more interested in how the first one is used.







linux system-calls






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edited Nov 12 at 1:52









Bsquare

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asked Jul 3 '16 at 1:31









Melab

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6683924








  • 1




    You can take a look into the kexec-tools source code.
    – pah
    Jul 3 '16 at 4:03














  • 1




    You can take a look into the kexec-tools source code.
    – pah
    Jul 3 '16 at 4:03








1




1




You can take a look into the kexec-tools source code.
– pah
Jul 3 '16 at 4:03




You can take a look into the kexec-tools source code.
– pah
Jul 3 '16 at 4:03












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I would also recommend the source code, you have a good overview if you use git:



git log --oneline  | grep kexec_load


enter image description here



of which this commit looks very promising:



git show 6b27aef09fea


enter image description here



If you don't have it cloned by now, here is the GIT repository:




git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git







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    up vote
    0
    down vote













    I would also recommend the source code, you have a good overview if you use git:



    git log --oneline  | grep kexec_load


    enter image description here



    of which this commit looks very promising:



    git show 6b27aef09fea


    enter image description here



    If you don't have it cloned by now, here is the GIT repository:




    git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git







    share|improve this answer

























      up vote
      0
      down vote













      I would also recommend the source code, you have a good overview if you use git:



      git log --oneline  | grep kexec_load


      enter image description here



      of which this commit looks very promising:



      git show 6b27aef09fea


      enter image description here



      If you don't have it cloned by now, here is the GIT repository:




      git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git







      share|improve this answer























        up vote
        0
        down vote










        up vote
        0
        down vote









        I would also recommend the source code, you have a good overview if you use git:



        git log --oneline  | grep kexec_load


        enter image description here



        of which this commit looks very promising:



        git show 6b27aef09fea


        enter image description here



        If you don't have it cloned by now, here is the GIT repository:




        git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git







        share|improve this answer












        I would also recommend the source code, you have a good overview if you use git:



        git log --oneline  | grep kexec_load


        enter image description here



        of which this commit looks very promising:



        git show 6b27aef09fea


        enter image description here



        If you don't have it cloned by now, here is the GIT repository:




        git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git








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        share|improve this answer










        answered Nov 11 at 22:21









        VeRo

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