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/linux/tools/testing/selftests/nolibc/
H A DMakefile.nolibc333 initramfs.cpio: kernel nolibc-test
334 $(QUIET_GEN)echo 'file /init nolibc-test 755 0 0' | $(objtree)/usr/gen_init_cpio - > initramfs.cpio
336 initramfs: nolibc-test
337 $(QUIET_MKDIR)mkdir -p initramfs
338 $(call QUIET_INSTALL, initramfs/init)
339 $(Q)cp nolibc-test initramfs/init
351 kernel-standalone: initramfs
352 $(Q)$(KBUILD_MAKE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs < /dev/null
355 run: kernel initramfs.cpio
356 …$(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -s…
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H A D.gitignore1 /initramfs/
2 /initramfs.cpio
/linux/Documentation/filesystems/
H A Dramfs-rootfs-initramfs.rst4 Ramfs, rootfs and initramfs
91 What is initramfs?
106 - The old initrd was always a separate file, while the initramfs archive is
112 initramfs archive is a gzipped cpio archive (like tar only simpler,
119 initramfs is not expected to return to the kernel. (If /init needs to hand
124 umount the ramdisk. But initramfs is rootfs: you can neither pivot_root
135 Populating initramfs:
138 The 2.6 kernel build process always creates a gzipped cpio format initramfs
144 initramfs archive, which will automatically be incorporated into the
154 file /bin/busybox initramfs/busybox 755 0 0
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/linux/usr/
H A DKconfig3 # Configuration for initramfs
12 initramfs image. A cpio archive should contain a filesystem archive
13 to be used as an initramfs image. Directories should contain a
14 filesystem layout to be included in the initramfs image. Files
19 initramfs image will be the aggregate of all of them.
26 bool "Ignore the initramfs passed by the bootloader"
29 This option causes the kernel to ignore the initramfs image
112 prompt "Built-in initramfs compression mode"
116 initramfs will be compressed. Several compression algorithms are
150 is slowest among the choices. The initramfs size is about 10% smaller
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H A Ddefault_cpio_list2 # This is a very simple, default initramfs
H A Dgen_initramfs.sh7 # Generate a cpio packed initramfs. It uses gen_init_cpio to generate
18 -o <file> Create initramfs file named <file> by using gen_init_cpio
29 as direct input to initramfs.
205 "-l") # files included in initramfs - used by kbuild
/linux/Documentation/driver-api/firmware/
H A Ddirect-fs-lookup.rst17 Firmware and initramfs
21 also as part of the initramfs used to boot the kernel given that otherwise
23 available. Stuffing the firmware into initramfs resolves this race issue,
27 initramfs, such as dealing with large firmware files for the
H A Dbuilt-in-fw.rst19 want to stuff the firmware into the boot initramfs.
/linux/Documentation/translations/zh_CN/security/
H A Dipe.rst194 initramfs提供了一种建立此启动路径的方法。内核启动时以最小化的策略启动，
195 该策略仅信任initramfs。在initramfs内，当真实的根文件系统已挂载且尚未
202 然而，并不是每个系统都以initramfs启动，因此编译进内核的启动策略需要具备
/linux/security/ipe/
H A Deval.h22 bool initramfs; member
45 bool initramfs; member
H A Deval.c35 ctx->initramfs = ipe_sb(FILE_SUPERBLOCK(file))->initramfs; in build_ipe_sb_ctx()
121 return ctx->initramfs; in evaluate_boot_verified()
/linux/Documentation/driver-api/early-userspace/
H A Dearly_userspace_support.rst18 - initramfs, a chunk of code that unpacks the compressed cpio image
23 The cpio file format used by initramfs is the "newc" (aka "cpio -H newc")
63 initramfs image will be an aggregate of all of them. In this way a user
122 custom initramfs images that meet your needs exactly.
143 c) using initramfs. The call to prepare_namespace() must be skipped.
145 into initramfs either via modifying usr/gen_init_cpio.c or via the new
150 comes via an initramfs cpio archive. If this is not the case,
/linux/Documentation/arch/s390/
H A Dzfcpdump.rst32 The s390 zipl tool looks for the zfcpdump kernel and optional initrd/initramfs
41 initrd. It can also be included in a built-in kernel initramfs. The application
45 initramfs with a user space application that writes the dump to a SCSI
/linux/tools/testing/ktest/examples/
H A Dkvm.conf56 POST_INSTALL = ${SSH} /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION
H A Dvmware.conf101 POST_INSTALL = ${SSH} /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION
/linux/include/linux/
H A Dkernel_read_file.h14 id(KEXEC_INITRAMFS, kexec-initramfs) \
/linux/Documentation/ABI/testing/
H A Dsysfs-class-tee15 tee-supplicant is needed in the early boot with initramfs.
/linux/tools/testing/ktest/examples/include/
H A Dbootconfig.conf6 INITRD := /boot/initramfs-test.img
/linux/Documentation/admin-guide/LSM/
H A Dipe.rst29 files originating from the initramfs. Since initramfs is typically verified
31 initramfs" becomes an immutable property under IPE's consideration.
49 from initramfs) or evaluating the internal state of an immutable security
625 This property can be utilized for authorization of files from initramfs.
633 This property will trust files from initramfs(rootfs). It should
635 rootfs on top of the initramfs, initramfs script will recursively
636 remove all files and directories on the initramfs. This is typically
638 initramfs will be empty and not accessible after the real
727 Allow only initramfs
737 Allow any signed and validated dm-verity volume and the initramfs
/linux/Documentation/arch/openrisc/
H A Dopenrisc_port.rst43 If you want to embed initramfs in the kernel, also pass ``CONFIG_INITRAMFS_SOURCE``. For example::
47 For more information on this, please check Documentation/filesystems/ramfs-rootfs-initramfs.rst.
/linux/arch/mips/econet/
H A DKconfig43 needs only an appended initramfs to boot. It can be loaded
/linux/security/integrity/
H A DKconfig31 usually only added from initramfs.
64 and, possibly, the initramfs signature.
/linux/Documentation/networking/device_drivers/ethernet/netronome/
H A Dnfp.rst88 After changing firmware files you may need to regenerate the initramfs
91 out how to update initramfs. Good indication of stale initramfs
113 in initramfs, you will have to refer to documentation of appropriate tools
/linux/Documentation/arch/arm/
H A Dbooting.rst23 5. Load initramfs.
144 5. Load initramfs.
152 If an initramfs is in use then, as with the dtb, it must be placed in
/linux/Documentation/translations/zh_CN/kbuild/
H A Dkbuild.rst313 默认值是内核构建某个时刻的 date 命令输出。如果提供该时戳，它还用于任何 initramfs 归

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