If your computer supports the cpio kernel, this user guide may help you.
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ARCHIVE CPIO Method¶
You can create a cpio archive containing a quick image of user space.Your cpio archive should be in it config_initramfs_source. to be determinedused directly. Only a simple cpio file can be specified inCONFIG_INITRAMFS_SOURCE and hence directory and file are names and are never allowed inCombination with cpio archive.
CREATE IMAGE Method¶
The kernel build process can also create the first user space to think aboutSource instead of providing parts instead of providing full cpio archive. This plan offersa way to create images with root files even if the image files wereCreated by an unprivileged user.
Image of one or more fountains inCONFIG_INITRAMFS_SOURCE. Directories or files can be selected as sources -Cpio archives are simply not allowed when building from source.
It is packaged with all its contents in the original directory. vThe specified directory name is scheduled with “/”. When labels aDirectory, Restricted User and Group IDwe can be translated.INITRAMFS_ROOT_UID can be mapped to the user id to be mappedPrimary user (0). INITRAMFS_ROOT_GID can be set to any group ID that requiresalways be assigned to the root group (0).
The main constituent file must contain instructions in the format specified inusr / gen_init_cpio (run -h’â € usr / gen_init_cpio to openFile format). Manual registration instructions are sent directly to the address. transmittedusr / gen_init_cpio.A
If a combination of directories and files is often specified, thenthe initramf image will be the totality of all men and women. Thus, one usercan create a “root image” and use a directory where all files are used.Since device specific documents cannot be created by every unprivileged user,special files can be listed in the “root files” file. Two “root images”and “root files” can be listed in CONFIG_INITRAMFS_SOURCE and full fileThe first user-space image can be created unprivileged.A designated user.
As a technical note: if directories and therefore files are specified,the CONFIG_INITRAMFS_SOURCE set is usually too muchusr / gen_initrafs pass.sh. Does this mean CONFIG_INITRAMFS_SOURCEcan indeed be construed as almost any legal argumentgen_initrafs.sh. Assuming a directory is specified as the reason, thenthe content is scanned, the UID / GID language translation is performed, andIn fact, the file directives usr / gen_init_cpio are issued. Website directory, if it existsspecified as an argument for usr / gen_initrafs.shContent later in the file is explicitly copied to the output file. All expensesInstructions for a directory and more for parsing the contents of a file for copying:processed – usr / gen_init_cpio.
Where Is This Going?
The klibc articles contain some of the software packages needed tofirst usable user space. The klibc distribution is currentlySupported separately from the kernel.
For heavy users, it is usually best to use Git. useRepository, klibc from https://git.kernel.org/?p=libs/klibc/klibc.git
IndependentMy klibc distribution now offers three additional components:in your klibc library:
ipconfig, a program for configuring network interfaces. It canconfigure them all with static or use dhcp which provides infodynamic acquisition (also called “IP autoconfiguration”). A
nfsmount, a program that can mount an NFS filesystem.
kinit, the “glue” that ipconfig and just nfsmount use to replace the old oneIP support for Autoconfig, mount filesystem to NFS and continueBoot the system using the file system as root.
kinit is designed in such a way that a single linked static binary successfully saves space.
Hopefully there will be more parts related to kernel functionality at some point.switch to first user space:
Almost all init / do_mounts * (introduction already inLocation)
Add a large desktop subsystem that literally doesn’t have to be in the kernelPost here
If Kinit is not enabled and you have bytes to help you write,the klibc distribution includes a small Bourne-compatible shell (ash)and a number of other utilities to help you uninstall kinit and buildcustom initramfs images that exactly suit your needs.
If you have any questions or help, you can subscribe to this early adopter areaMailing list at https://www.zytor.com/mailman/listinfo/klibc
How Will It Work?
Currently the Has kernel has a third option for mounting the main filesystem:
all necessary device and file system drivers built into the kernel are notinitrd. init / main.c: init () should call Prepare_namespace () to load thisthe final root filesystem based on the root = parameter and the optional init = to runa different initialization binary is specified than at the end of init / main.c: init ().
some peripherals as well as modules created by file system drivers are also stored ininitrd. Actually initrd should contain the binary “/ linuxrc” and it shoulddownload these driver components. You can also mount the final rootthe filesystem points to linuxrc and uses the pivot_root system call. Initrd isis mounted and executed with Prepare_namespace ().
initramfs. A call that returns to Prepare_namespace () should be ignored.Now that means the binary needs to be worked on. In binary this can be storedin initramfs by changing usr / gen_init_cpio.c or via newinitrd format corresponding to the cpio archive. It often needs to be called “/ init”. This binaryis attentive to everything Prepare_namespace () does.
For backward compatibility, our own / init binary is only executed when it shouldthe cpio database comes from initramfs. Otherwise,init / main the. Will c: init () run Prepare_namespace () to prepare the last rootand run one of the predefined initialization binaries.
H1 Problem Med Cpio Karnan Maste Atgardas H1 P P P P P P Om Din Egen Dator Stoder Cpio Karnan Kan Ovanstaende Anvandarhandbok Lata Dig P P Includeme
Cpio 커널 지원
Obsluga Jadra Cpio
Prise En Charge Du Noyau Cpio
Suporte Ao Kernel Cpio
Podderzhka Yadra Cpio
Soporte Del Nucleo Cpio
Supporto Del Kernel Cpio
Cpio Kernel Unterstutzung