Searching for Initrd Support Kernel information? Find all needed info by using official links provided below.
https://www.kernel.org/doc/html/v4.12/admin-guide/initrd.html
Second, the kernel has to be compiled with RAM disk support and with support for the initial RAM disk enabled. Also, at least all components needed to execute programs from initrd (e.g. executable format and file system) must be compiled into the kernel.
https://developer.ibm.com/technologies/linux/articles/l-initrd/
Initrd support in the Linux kernel For the Linux kernel to support the initial RAM disk, the kernel must be compiled with the CONFIG_BLK_DEV_RAM and CONFIG_BLK_DEV_INITRD options. Testing the custom initial RAM disk Your new initrd image is in /boot, so the next step is to test it with your default kernel.
https://www.suse.com/support/kb/doc/?id=3111917
The Linux kernel is modular in nature. The RAM disk/kernel image used to boot up Linux holds the initial modules that are used to get the system up; after the initial boot other modules are loaded as needed. In some cases, the kernel modules need to be included in the RAM disk.
https://github.com/raspberrypi/linux/issues/392
Oct 02, 2013 · That's why adding initrd support to the stock kernel has been very useful. Now initrd support is included in the stock kernel using initrd and all the features it allows is much easier. This comment has been minimized. lurch commented Nov 7, 2013
https://www.linuxquestions.org/questions/debian-26/compiling-kernel-without-initrd-support-457689-print/page2.html
Also does the creation of an initrd image is idependent of the Kernel Configuration. For example, suppose if I configure my kernel with some additonal options and remove some options and recompile it and then again make an initrd image, will this initrd image be the same as the previous one above? THanks once again.
https://www.kernel.org/doc/html/latest/admin-guide/efi-stub.html
The “initrd=” option¶. Like most boot loaders, the EFI stub allows the user to specify multiple initrd files using the “initrd=” option. This is the only EFI stub-specific command line parameter, everything else is passed to the kernel when it boots.
https://www.linuxquestions.org/questions/linux-kernel-70/enable-uuid-support-in-kernel-%5Bwithout-initrd%5D-903023/
Oct 19, 2011 · enable UUID support in kernel [WITHOUT INITRD] hi, i've compiled my kernel 2.6.39.2 along with grub and other useful stuff. ... Have you tried to compile your kernel with only USB support, write grub to the MBR of the stick and set the BIOS boot priority to boot off USB.
https://www.linux.com/tutorials/kernel-newbie-corner-initrd-and-initramfs-whats/
Sep 30, 2009 · also enables initial RAM disk (initrd) support and adds 15 Kbytes (more on some other architectures) to the kernel size. If unsure say Y. And based on what you read above, you should notice that this is the single option that selects support for both types of early root file systems.Author: Rob Day
https://www.golinuxcloud.com/update-rebuild-initrd-image-centos-rhel-7-8/
Sep 13, 2019 · The initrd is bound to the kernel and loaded as part of the kernel boot procedure. The kernel then mounts this initrd as part of the two-stage boot process to load the modules to make the real file systems available and get at the real root file system.
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