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I was learning to use debootstrap and forgot to include some modules when initramfs was rebuild. Later I copied over what was missing, but the missed files were not included when the system was rebooted - only after some more additions (with apt install), which triggered the initramfs rebuild, the problem was fixed.

I would have liked to trigger or force to rebuild initramfs and vmlinuz but could not find a way (my understanding of the boot process is still incomplete; thank you for enlightment!)

user855443
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1 Answers1

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If you need some modules in the initramfs, list them in the file /etc/initramfs-tools/modules.

To trigger a rebuild of the initramfs, you would call update-initramfs which itself calls mkinitramfs. Both programs have man pages that can help you further.

Mathias Weidner
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  • thank you - I assumed there was an simple command, but I could not find it. I still have much to learn to use debootstrap effectively. – user855443 Mar 02 '21 at 22:08