Keep kernel files in different directories












0














Is it possible to copy standard vmlinuz-3.10..... kernel file to another directory, rename it and load it during booting the system?



I'm on CentOS7 and I have a class task.
"Copy vmlinuz-... and initramfs-.... files from /boot to root directory, rename them, add menuentry "Spare kernel" and load it from this new copied kernel file".



I edited /etc/grub.d/40_custom file and added this menuentry.Screenshot1
Copied and renamed files (/kernel and /ramdisk)
Screenshot2
I have also made unexecutable /etc/grub.d/10_linux file (chmod 644).
As a result "Main kernel" - no problem, "Spare kernel" gives error
Screenshot3



I guess I have to set bootable root in correct way so I tried options 'set root=(hd0,msdos1)' and 'set root=(hd0,msdos2)' (/boot mounted on sda1, but system root ( / ) on sda2, I thought that (hd0,msdos2) will work but it doesn't).
Screenshot4
Can anybody help?
Thank you.










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    0














    Is it possible to copy standard vmlinuz-3.10..... kernel file to another directory, rename it and load it during booting the system?



    I'm on CentOS7 and I have a class task.
    "Copy vmlinuz-... and initramfs-.... files from /boot to root directory, rename them, add menuentry "Spare kernel" and load it from this new copied kernel file".



    I edited /etc/grub.d/40_custom file and added this menuentry.Screenshot1
    Copied and renamed files (/kernel and /ramdisk)
    Screenshot2
    I have also made unexecutable /etc/grub.d/10_linux file (chmod 644).
    As a result "Main kernel" - no problem, "Spare kernel" gives error
    Screenshot3



    I guess I have to set bootable root in correct way so I tried options 'set root=(hd0,msdos1)' and 'set root=(hd0,msdos2)' (/boot mounted on sda1, but system root ( / ) on sda2, I thought that (hd0,msdos2) will work but it doesn't).
    Screenshot4
    Can anybody help?
    Thank you.










    share|improve this question







    New contributor




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























      0












      0








      0







      Is it possible to copy standard vmlinuz-3.10..... kernel file to another directory, rename it and load it during booting the system?



      I'm on CentOS7 and I have a class task.
      "Copy vmlinuz-... and initramfs-.... files from /boot to root directory, rename them, add menuentry "Spare kernel" and load it from this new copied kernel file".



      I edited /etc/grub.d/40_custom file and added this menuentry.Screenshot1
      Copied and renamed files (/kernel and /ramdisk)
      Screenshot2
      I have also made unexecutable /etc/grub.d/10_linux file (chmod 644).
      As a result "Main kernel" - no problem, "Spare kernel" gives error
      Screenshot3



      I guess I have to set bootable root in correct way so I tried options 'set root=(hd0,msdos1)' and 'set root=(hd0,msdos2)' (/boot mounted on sda1, but system root ( / ) on sda2, I thought that (hd0,msdos2) will work but it doesn't).
      Screenshot4
      Can anybody help?
      Thank you.










      share|improve this question







      New contributor




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











      Is it possible to copy standard vmlinuz-3.10..... kernel file to another directory, rename it and load it during booting the system?



      I'm on CentOS7 and I have a class task.
      "Copy vmlinuz-... and initramfs-.... files from /boot to root directory, rename them, add menuentry "Spare kernel" and load it from this new copied kernel file".



      I edited /etc/grub.d/40_custom file and added this menuentry.Screenshot1
      Copied and renamed files (/kernel and /ramdisk)
      Screenshot2
      I have also made unexecutable /etc/grub.d/10_linux file (chmod 644).
      As a result "Main kernel" - no problem, "Spare kernel" gives error
      Screenshot3



      I guess I have to set bootable root in correct way so I tried options 'set root=(hd0,msdos1)' and 'set root=(hd0,msdos2)' (/boot mounted on sda1, but system root ( / ) on sda2, I thought that (hd0,msdos2) will work but it doesn't).
      Screenshot4
      Can anybody help?
      Thank you.







      centos grub2






      share|improve this question







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











      share|improve this question







      New contributor




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









      share|improve this question




      share|improve this question






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      asked 11 mins ago









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      New contributor





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






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