Compile Kernel

sudo apt-get install libncurses5-dev build-essential kernel-package
Experimental environment

Version issues use newer but more stable, the newest is unstable, don't believe you look at win11. VMware Workstation 16.2.1 Pro + Ubuntu Desktop 20.04.3 LTS + linux-5.10.78

• Ubuntu Desktop 20.04.3 LTS
• VMware Workstation 16 Pro
• Linux-5.10.78 Kernel

Problem Aggregation and Solutions

Error 1. No space left on device
_Give virtual disks enough memory, different versions of the linux core account for different sizes, where the core accounts for almost 30G. The author has allocated 70G to the disk, allocating disk space at the beginning will save workload.

Command part 1

wget https://www.kernel.org/pub/linux/kernel/v5.x/linux-5.10.78.tar.xz
sudo cp ./linux-5.10.78.tar.xz /usr/src
cd /usr/src
sudo tar xvJf ./linux-5.10.78.tar.xz
cd ./linux-5.10.78

    

    

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Command part 2

sudo apt-get install libncurses5-dev build-essential kernel-package
sudo make menuconfig

    

    

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Error 2. /bin/sh: 1: flex: not found
Unpack

sudo apt-get install flex

    

    

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Error 3. /bin/sh: 1: bison: not found

Similarly, From blog

sudo apt-get install bison -y

    

    

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Error 4. No rule to make target 'menuconfig'.Stop.
_The command executed incorrectly. It is of no use to execute menuconfig in the root directory. You should first enter the linux kernel directory with the cd command and then execute sudo menuconfig.

cd /usr/src
cd ./linux-5.10.78
sudo make menuconfig

    

    

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Error 5. Your display is too small to run Menuconfig!
The virtual machine screen display is too small to fit the menuconfig menu, so maximize the window.

Your display is too small to run Menuconfig!
It must be at least 19 lines by 80 columns.

    

    

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_You should see the menu options later, select Exit directly here, and Yes saves the settings

Command part 3

sudo make
#If your processor has eight cores, you can use the following command to multicore compilation with a visual increase in speed
sudo make -j8

    

    

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Error 5. fatal error: gelf.h: No such file or directory

sudo apt-get install libelf-dev

    

    

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Error 6. fatal error: openssl/opensslv.h: No such file or directory

sudo apt-get install libffi-dev

    

    

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Error 7. No rule to make target 'debian/certs/benh@debian.org.cert.pem', needed by 'certs/x509_certificate_list'. Stop.
_1. Need to enter config file to modify

vim .config

    

    

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_2. Download vim

sudo apt install vim

    

    

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_3. Enter Administrator to delete CONFIG_ SYSTEM_ TRUSTED_ Value of KEYS. Find three values in the config file, then blank them, delete them with the del key, exit VIM editing by pressing the ESC key and typing':', inject'wq!'when you see the cursor at the bottom of vim editor, and then return to exit editing.

sudo su
vim .config

    

    

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_Here I deleted two values. The online solution is to delete CONFIG_ SYSTEM_ TRUSTED_ Value in KEY is sufficient

Error 8. BTF: .tmp_vmlinux.btf: pahole (pahole) is not available.

#Error message
BTF: .tmp_vmlinux.btf: pahole (pahole) is not available
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make: *** [Makefile:1106: vmlinux] Error 1

    

    

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_Classic Subpackage

sudo apt install dwarves

    

    

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command
Error 9. FAILED:load BTF from vmlinux:No such file or directory

_Enter the.config file above to modify config_ DEBUF_ INFO_ The value of BTF is changed from y to n. Cursor blinking in vim is not edit mode, can not be entered, need to enter'i'to enter edit mode, can be seen in the lower left corner - - INSERT -, ESC exits edit mode.

Command part 3

sudo make modules_install
sudo make install

    

    

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Error 10. SSL error:02001002:system library:fopen:No such file or directory: .../crypto/bio/bss_file.c

INSTALL arch/x86/crypto/aegis128-aesni.ko
At main.c:160:
- SSL error:02001002:system library:fopen:No such file or directory: .../crypto/bio/bss_file.c:74
- SSL error:2006D080:BIO routines:BIO_new_file:no such file: .../crypto/bio/bss_file.c:81
sign-file: certs/signing_key.pem: No such file or directory
scripts/Makefile.modinst:36: recipe for target 'arch/x86/crypto/aegis128-aesni.ko' failed
make[1]: *** [arch/x86/crypto/aegis128-aesni.ko] Error 1
Makefile:1281: recipe for target 'modinst' failed
make: *** [modinst] Error 2

    

    

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Original Link: https://blog.csdn.net/m0_51203305/article/details/120809966

Final

_Ultimately requires custom content to be visible in the Startup menu
_Startup linux skips the Startup menu and goes directly to the login interface because profile customization skips the startup option


_Edit/etc/default/grub file after make install command

sudo su
gedit /etc/default/grub

    

    

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_Will GRUB_TIMEOUT_STYLE=hidden commented out, which probably means not hiding the Select Launch Item menu. Modify GRUB_later TIMEOUT = 10
Save and exit, then type sudo update-grub on the command line to update the startup options. Reference blog: https://tinychen.com/20191224-ubuntu-change-grub/

Then modify the / boot/grub/grub.cfg file to find the string after menuentry and modify its value to customize the option name when launching the menu.

sudo su
gedit /boot/grub/grub.cfg

    

    

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