While compiling the Gentoo kernel using `make && make modules_install` I couldn't seem to find a way to install an initrd; I tried using genkernel to create an initramfs, but after recompiling the kernel sources I couldn't find where the file even was. It is uncommon that an initramfs will interact with a hostile user, and rarer still that such user could not bypass the initramfs by rebooting from media of his choosing. I really am stuck here! If I go with the init-script for the initramfs I posted below the system prints out the switch_root usage-text from busybox. uuid=<encrypted partition uuid> initrd /boot/initramfs-3. 10 kernel (and before of course a "make depclean"). Advantages include the initramfs being verified by Secure Boot when it verifies the kernel, a simplified boot process and EFI partition, and it being easier to load the kernel by hand (because callers no longer need to specify the initramfs Dec 14, 2021 · Introducing dracut. 2-gentoo-r5 Utilizzare genkernel L'utilità di costruzione del kernel di Gentoo, genkernel , può essere usata per generare un initramfs, anche se genkernel non è stato utilizzato per configurare e costruire il kernel. Jun 4, 2024 · If you chose to use the Gentoo distro kernel adding USE="dist-kernel" use flag to /etc/portage/make. 6. Dec 31, 2022 · Moreover, for the limited environment in which the initramfs operates, many typical vulnerabilities are a non-issue. 5-gentoo. In recent versions of sys-kernel/gentoo-sources, there is a convenient way of selecting the mandatory and optional kernel options for systemd (see Kernel/Configuration for further details): If the kernel can boot the system properly without the initramfs, why are you trying to use an initramfs? Typically, people use one because they need early-boot processing, like unlocking a LUKS device, activating LVM, activating MD, or mounting secondary filesystems. d/10_linux, in a for loop that is looking for patterns like, for example: initrd-${version}. The initramfs contains kernel modules; so if anything has changed in the modules included in your initramfs, you need to generate a new one. 19. img matches with vmlinuz-5. 52-gentoo, and grub-mkconfig finds them the initramfs for that kernel. It can be installed by enabling the generic-uki USE flag, and configuring installkernel to not generate a custom initramfs or unified kernel image: genkernel を用いる. ) May 13, 2012 · When the initramfs handles over control of the system to the init application, this application loads in the SELinux policy, enables SELinux enforcing mode and Personally I won't use systemd on Gentoo for as long as it's not the default in Gentoo; but I don't fight it in other distros either (but their initramfs also contains systemd then) and people coming from those other distroes to Gentoo in the future are probably already so used to systemd that they'll want to use it in Gentoo too. Apr 8, 2024 · * ERROR: create_initramfs(): append_data(): append_busybox(): populate_binpkg(): gkbuild(): Failed to create binpkg of busybox-1. But that didn't work either. I just noticed that gentoo-kernel used dracut and was able to produce working initramfs which made my touchpad and everything work and I was able to do the same manually, using the same config I tried to make work with genkernel. sys-kernel/linux-firmware: Create and install initramfs for early microcode loading in /boot (only AMD for now) sys-kernel/vanilla-kernel Apr 2, 2020 · - boot with "Gentoo minimal CD" (I used version 2020-03-15) But this initramfs is included in the kernel, so I don't need any unencrypted partition (except the Apr 9, 2016 · My fresh installation (still without lvm) can use the dracut generated initramfs with CONFIG_INITRAMFS_SOURCE="". 89 Apr 22, 2023 · For embedding the initramfs directly into the kernel image, the initramfs_list must be coded in Initramfs source file(s) (CONFIG_INITRAMFS_SOURCE) in the kernel (directly under the Initial RAM filesystem and RAM disk (initramfs/initrd) support (CONFIG_BLK_DEV_INITRD) option): Jun 30, 2024 · Note Gentoo's amd64 profiles set a reasonable default for the GRUB_PLATFORMS variable, and grub-install can usually figure out whether to install GRUB for EFI, for BIOS with MBR or for BIOS with GPT, so setting GRUB_PLATFORMS in /etc/portage/make. Sorted by: 5. If you have an initrd, or initramfs, it will contain matching kernel modules, so it must be built later than kernel. Please Aug 6, 2024 · Installkernel is a collection of scripts to automatically install new kernels and update bootloader configuration. Determine the root block device. An initramfs is needed any time you need to load a module (such as a driver) or software (such as LVM) in order to boot the system, depending on your setup. /vmlinuz-5. Dracut — Initramfs infrastructure, ported from the Fedora Project, that aims to have as little as possible hard-coded into the initramfs. img Note Dracut will match UUIDs that are not complete as long as they are not ambiguous, so it is possible to only enter the first stanza for brevity/clarity This article used to be the Initramfs article on the (long gone) gentoo-wiki. conf enables management automation of the initramfs using dracut often without additional administrator intervention required. But again it fails to boot. - John _____ Feb 4, 2021 · 1 Answer. initramfs - это начальная файловая система в оперативной памяти, основанная на tmpfs (легковесной файловой системе в памяти с изменяемым размером), которая также не использовала отдельное блочное устройство (чтобы hi i compiled the custom kernel and the generated the initramfs with dracut and i use lz4 for kernel compresion and have the lz4 package installed The ZFS article on the Gentoo Wiki has this to say: To boot from a ZFS volume as the root filesystem requires a ZFS capable kernel and an initial ramdisk (initramfs) which has the ZFS userspace utilities. Apr 9, 2016 · My fresh installation (still without lvm) can use the dracut generated initramfs with CONFIG_INITRAMFS_SOURCE="". I haven't investigated why. Common use cases are e. 5 release of ZFS, new feature flags added to ZFS without proper bootloader support can make your system unbootable. Aug 22, 2017 · Posted: Tue Aug 22, 2017 10:24 am Post subject: [SOLVED] genkernel initramfs: cpio: cannot seek on output Dec 16, 2015 · I can tell that gentoo shipped genkernel initramfs is kinda broken, status october 2015. Over time more advanced setups will be added so please check the TODO section to see if there is something that can be added to improve this article. Users who use an encrypted file system will Aug 8, 2024 · To create an EFI boot entry for /efi/vmlinuz-6. cpio): destination for the (uncompressed) cpio initramfs. It is generally used to contain whatever is required to boot the system, but can contain the entire root filesystem used once booted if that's desired. sys-kernel/gentoo-kernel-bin: Build initramfs along with the kernel. 7 fand loads the linux from Label=psxitarch; Internal Loader 4 days ago · Storing the kernel, initramfs, and bootloader on a separate device than the rootfs can present more problems than benefits. 4-gentoo-r1-initramfs. Jul 11, 2024 · Post-install/upgrade tasks. The initramfs is a root filesystem in a file. Now the kernel boots fine, but because I used genkernel I now have a initramfs. To cover the majority of situations, most distros, and some Gentoo users, just use a generated initramfs and a bootloader (such as GRUB). To install GRUB, first set the GRUB_PLATFORMS variable with one or more appropriate values in the system's make. If the initramfs ever requires updating simply emerge --config gentoo-kernel-bin. It can be installed by enabling the generic-uki USE flag, and configuring installkernel to not generate a custom initramfs or unified kernel image: Aug 18, 2020 · Some modern PC systems — particularly tablets and ultra-compacts — support only UEFI booting, and have no 'legacy'/'CSM' boot option available in their BIOS GUIs. I would have tried to use "make oldconfig" after copying your . The initramfs usually takes care of mounting important file systems (by loading the proper kernel modules and drivers) such as /usr or /var, preparing the /dev file structure, etc. initramfs is a root filesystem that is embedded into the kernel and loaded at an early stage of the boot process. d/splash could be used to configure the theme, which will be loaded after initramfs. It is safer for us to create a separate zpool that has all feature flags disabled. The conventional 32 kilobytes (63 sectors of 512 bytes) is not enough for GRUB2 when RAID is enabled, the space should be at least 1MB (the first primary partition should start on or after sector 2048). config from another 5. There are minor differences in the naming scheme for devices and partitions when compared to SATA devices. gpg I have confirmed that the smartcard is indeed able to Jan 12, 2024 · The Distribution Kernel project aims to maintain sys-kernel/*-kernel packages. It halts, with unresponsive keyboard numlock/capslock, right after choosing the kernel and load initramfs. 2-gentoo-r5 initrd /boot/initramfs-3. Early Userspace Mounting — Another worth to read article about custom initramfs; Genkernel — a tool created by Gentoo used to automate the build process of the kernel and initramfs. Context I'm currently installing Gentoo for the second time after settling with Artix for two weeks, and I'm using the latest livecd image. Next question is: But why I dont need it when building an external CPIO archive ? gpl-2 generic-uki? ( gpl-2+ lgpl-2. Code: steve@mernivia ~/linux-2. This package needs a new maintainer! If you are interested in helping with the maintenance of bliss-initramfs, please get in touch with our Proxy Maintainers team. as described here ) to dropping genkernel completely. I followed the Gentoo handbook and built the initramfs through dracut and when i chroot and ls boot, this is what I see: Quote: System. 21-gentoo" Note that the above command presumes an initramfs file was copied into the ESP inside the same directory as the bzImage. 98, but genkernel builds 2. Jul 18, 2024 · Optional: Embedded initramfs. requires no rebuilding during kernel updates if you compile sufficient stuff in. PROMPT 1 TIMEOUT 50 DEFAULT gentoo LABEL gentoo LINUX . efi" --unicode "initrd=\efi\initramfs-genkernel-amd64-6. INITRAMFS_DIR (default: /usr/src/initramfs): controls where the initramfs content will be copied. Apr 13, 2024 · This article is focused on using ZFS as the rootfs on Gentoo and designed to be used with the Handbook. Jun 25, 2024 · Using genkernel. Originally the root filesystem in a file was called the initrd. I relicense my text under the CC-BY-SA license. genkernel automates the kernel build process and assembles the initramfs, but does not generate a custom kernel configuration file. img; initramfs-genkernel-${version} Jan 2, 2015 · boot=/dev/sda # Install LILO in the MBR prompt # Give the user the chance to select another section timeout=50 # Wait 5 (five) seconds before booting the default section default=gentoo # When the timeout has passed, boot the "gentoo" section compact # This drastically reduces load time and keeps the map file smaller; may fail on some systems Jan 5, 2024 · News and information from Gentoo Linux I am trying to set up gentoo on a root server from https: initrd /initramfs-genkernel-x86_64-4. Sep 12, 2023 · This guide is designed to be followed as part of a fresh Gentoo install, bootloader support files, kernel and initramfs └── /dev/nvme0n1p2 [LUKS] (crypt Jan 6, 2019 · First I have running and booting system, I try to genkernel newer kernel I repeat steps from previous successful compilation and booting, but in the end I can boot new kernel / rootfs can't be mount: title Gentoo Linux 3. It's an idempotent script that could be run every time the initramfs needs to be re-created, or when the kernel upgrades as it takes the current kernel (one linked under /usr/src/linux/) version for the initramfs filename. Feb 20, 2023 · An initramfs ( init ial ram f ile s ystem) is used to prepare Linux systems during boot before the init process starts. Other distros may have a more heavy patched kernel than our gentoo kernel (leading to select other modules than our gentoo-kernel). 36. (I need an initramfs because full disk encryption. 66-gentoo. Apr 5, 2024 · Here is a commit about the bug: https://gitweb. 13-gentoo. Jun 2, 2019 · Hello, I have a problem booting my system. /initramfs-5. Aug 18, 2024 · For example, a user could create a Btrfs filesystem in /mnt/btrfs and create /mnt/btrfs/home and /mnt/btrfs/gentoo-repo subvolumes. If you have a question as well then lemme know in the comments section below. Code: Jun 5, 2023 · │ ├── initramfs-6. Mar 18, 2024 · Optional: Embedded initramfs. 另一个值得阅读的关于自 May 4, 2023 · Note In BIOS - MBR disks, leave a space at the start of the disk for GRUB2 to be installed. システム管理者は Linux カーネル、関連するモジュール、および (必須ではありませんがデフォルトでは有効化されていない) initramfs ファイルを、設定、ビルド、インストールするために Gentoo の genkernel ツールを使用することができます。カスタマイズが必要 title Gentoo Linux 3. This requires one new script run of the initramfs per kernel update then. 0-gentoo root=UUID=<root filesystem uuid> rd. initrd처럼, 실제 루트 파일 시스템의 init 바이너리를 호출하기 전에 파일 시스템을 마운트 I just upgraded my kernel to linux-5. 1 gpl-3 gpl-3+ bsd bsd Nov 4, 2023 · Hi I get stuck at the loading initramfs screen on grub. If the user is willing to accept more memory usage and time to compress, --extreme (-e) can be used with a numerical level to increase the intensity, e. 7 works for all; psxIta (this loader is for psxita) Loads the initramfs. My /boot only has 24MiB in use. Oct 13, 2020 · This initramfs file is once build and then static, e. See full list on wiki. Portage provides a hook with dist-kernel USE flag which is part of linux-mod-r1. 13. g. img, which Arch won't recognize. Linux neddy_static 6. Feb 2, 2024 · What I would love to know, is what are the rules it uses for finding an initramfs to match any kernel it finds, without me needing to read the source. Currently systemd-stub is available for amd64, x86 and arm64. 1 lgpl-2 || ( bsd gpl-2 ) lgpl-2. My questions would be: Where is your kernel ? First result was: The initramfs was suddenly a lot smaller, but my wireless adapter (intel) did not work anymore - obviously a firmware problem. Maybe "localmodconfig" wasnt very smart. Dec 13, 2014 · The prebuilt sys-kernel/gentoo-kernel-bin can optionally install a prebuilt generic unified kernel image containing a generic initramfs that is able to boot most systemd based systems. Setup: GRUB via EFI, LUKS, ZFS, SystemD /dev/nvme0n1p1 is the EFI boot partition, which contains Grub, the kernel and the initramfs. Gentoo minimal won't do the first, and systemrescuecd is not recognizing my drive. Why make your own. org/repo/gentoo. 12-gentoo Found initrd image: /boot/initramfs-genkernel-x86_64-3. Aug 12, 2021 · I'm having some trouble upgrading my system completely and I'm wondering how other users with initramfs systems upgrade their kernel. This is because even though grub currently supports the latest feature flags for the 0. None of these components should contain sensitive data that would benefit from encryption, and LUKS does not provide data authentication. Using gentoo-kernel-bin initramfs Mar 21, 2022 · I can only say that I was unable to produce working initramfs using genkernel for my laptop. answered Feb 4, 2021 at 14:04. 8-gentoo Found initrd image: /boot/initramfs-genkernel-x86_64-3. But: Startup time was so fast that I could not see the anymore wether the initramfs was loaded at all Initramfs 官方 Gentoo Wiki. 7. Hi, I’m installing fresh system on my PC on NVME and USB DOM (it’s like thumb drive, but with header for plugging into motherboard, it's only for /boot partition), I’m doing this from chroot on my current system. On system B I was aware of the dracut problem so I added -dracut to installkernel before the world update. its no longer reccomended for making a initramfs. _____ Regards, Feb 10, 2024 · Kernel. Provided that refind_linux. Jul 30, 2022 · I have also just re-embed the initramfs into kernel and recompiled. 2-gentoo-r5 En utilisant genkernel L'utilitaire de compilation du noyau genkernel peut être utilisé pour générer un initramfs , même si genkernel n'a pas été utilisé pour configurer et compiler le noyau. Aug 13, 2024 · Storing the kernel, initramfs, and bootloader on a separate device than the rootfs can present more problems than benefits. It is possible provide a custom kernel configuration file if customization is necessary. signed which is under the root of /dev/sda1: Apr 29, 2017 · I’m using Gentoo Linux and can confirm that you can achieve a bootable kernel without initrd/initramfs. Keep in mind that rEFInd searches initramfs relatively partition, so if the /boot partition is separate, search it with "initrd=intel-ucode. Nov 30, 2023 · Root on ZFS. without initramfs, I keep getting asked where the root device is (it asks for a UUID). As such, bootable images without EFI support (for example, Gentoo minimal install images issued prior to August 2018) cannot be used in native form with such machines. title Gentoo Linux 3. Other than that, for the same kernel version, no, you shouldn’t need to generate a new initramfs if you already have one. Gentoo's kernel building utility, Genkernel, can be used to generate an initramfs. 49 * Running with options: --install initramfs Install a small initramfs for use with CONFIG_MICROCODE_EARLY: sys-kernel/gentoo-kernel: Build initramfs along with the kernel. genkernel expects that both the kernel and initramfs are built by it, although in some cases, an initramfs built by genkernel with the kernel built by another method may work (but is discouraged). Determining which to use, is entirely the choice of the user. root # efibootmgr --create --disk /dev/sda --part 1 --label "gentoo" --loader "\EFI\Gentoo\bzImage. Generating grub. I am using grub as bootloader. Jun 24, 2024 · initramfs is a root filesystem that is embedded into the kernel and loaded at an early stage of the boot process. Hibernation (suspend to disk) is a special case. There is a number of ways to avoid it, from editing initramfs (e. Jan 13, 2024 · eudev has been removed from ::gentoo. Aug 13, 2024 · µgRD (Microgram Ramdisk) is a framework used to generate ramdisks using TOML definitions and python functions. 15. 2. The initramfs will basically be a tiny Linux system that will run cryptsetup, which will prompt you for your encryption password, mount the encrypted volume, and then switch to your main operating system installed on that to continue booting. Jul 16, 2024 · The initramfs image created this way is a generic image, which will include all installed modules and system tools that it can find, suitable for booting a variety of machines. But I had to learn that efibootmgr, for the initramfs attribute has to be given the -u, (--UCS-2) option: Jul 10, 2024 · For example initramfs-5. cfg Found linux image: /boot/kernel-3. If producing an initramfs for just a single machine, it may be specified that dracut should go into host-only mode: The prebuilt sys-kernel/gentoo-kernel-bin can optionally install a prebuilt generic unified kernel image containing a generic initramfs that is able to boot most systemd based systems. Code: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 298. 6 $ sudo genkernel --install initramfs Password: * Gentoo Linux Genkernel; Version 3. 47-gentoo config-6. Aug 7, 2023 · Posted: Wed Jul 05, 2023 3:42 pm Post subject: Genkernel fails to build libxcrypt for initramfs Aug 21, 2023 · The kernel file here must be newer than the . While both tools are highly capable and can build functional initramfs', they may not meet all use cases. It provides early userspace which can do things the kernel can't easily do by itself during the boot process. 41-gentoo, but I'm unable to create initramfs for it. May 18, 2024 · Using Dracut initramfs to perform the upgrade. git/commit/?id=d8ad860a1ed9aa92adaa7dcf1c3fc78d0e2f80ce author Viorel Munteanu <ceamac@gentoo Jul 30, 2022 · I have also just re-embed the initramfs into kernel and recompiled. conf. It is the successor of initrd. I don't need to rebuild the initramfs when I upgrade the kernel, the old one works fine. xz has multiple compression levels available. It can be installed by enabling the generic-uki USE flag, and configuring installkernel to not generate a custom initramfs or unified kernel image: title Gentoo Linux 3. INITRAMFS_CPIO (default: /usr/src/initramfs. Aug 15, 2024 · Building Initramfs. Apr 17, 2023 · Using genkernel. Jul 7, 2021 · When using an initramfs and upgrade to another kernel version, make sure the initramfs is recreated correctly in /boot for the new kernel version and that the boot loader configuration refers to the correct initramfs. 02. map-6. It's also possible to embed the initramfs directly into the kernel. Also it is considered for experience users, and users with some ZFS experience. To append the theme to an existing initramfs: In particular, to (re-)generate an initramfs image based on the preset provided by a kernel package, use the -p/--preset option followed by the preset to utilize. This is not step-by-step guide. config too. For example, I have the genkernel created kernel-genkernel-x86_64-4. 4. It provides early userspace which can do things the kernel can't easily do by itself during the boot process. Distribution kernels are capable of rebuilding kernel modules installed by other packages. Gentoo's kernel building utility, genkernel, can be used to generate an initramfs, even if genkernel was not used to configure and build the kernel. This implies you know how a box boots, how to hack files, and how you manually mount it in a chroot. Feb 19, 2024 · Usage. Dracut is a tool used to build initramfs cpio archives. cpio. When using tools like Genkernel or Dracut, no additional configuration is required. Feb 18, 2024 · This article describes how to enable hibernation with a custom initramfs. The patterns are defined in /etc/grub. 2-gentoo-r5 Usar genkernel Se puede utilizar la herramienta de construcción del núcleo de Gentoo genkernel para generar un initramfs, incluso si no se utilizó genkernel para configurar y construir el núcleo. 35-gentoo-r9 initrd /boot/initramfs title Windows 7 rootnoverify (hd0,0) makeactive chainloader +1: My current init is: Code: Apr 15, 2024 · Installing GRUB software. img; initramfs-${version}. The subvolumes could then be mounted at /home and /var/db/repos/gentoo, with the original top level subvolume left unmounted. conf creation on the fly is there to ensure that unless specified otherwise, arrays will be md1, md2, md3 etc. not 127, 128 and 129. Feb 23, 2024 · Welcome to Gentoo Forums ! Your kernel will not try to mount any partition IF the kernel has an initramfs ! (because it is now the job of the init script of your initramfs to mount the root partition) This means: Something is wrong with your start of your kernel AND its associated (external) initramfs. igz (2472813 bytes) is the initrd image from the 2005. org and * assign your bug to genkernel@gentoo. Loads the initramfs. Early Userspace Mounting — how to build a custom minimal initramfs that checks the /usr filesystem and pre-mounts /usr. If you have an existing initramfs (like one you have created with dracut) you want to use this feature. 5-gentoo └── crypt_key. If unset, GRUB will guess which platform to use on the system. If you intend to use it in your Custom Initramfs, you need to be aware of the pitfalls, or you will suffer from utter and complete data loss. conf does not specify an initrd, it is automatically appended to the kernel command line. Can anyone point me to some good docs on compiling a kernel for Gentoo with an initramfs? Apr 5, 2021 · This is a very basic script that creates and installs an initramfs that unlocks LUKS encrypted root remotely over SSH. ) 2 days ago · I have a feeling that Arch is the culprit (maybe), as, when looking into its /boot directory, there is a initramfs-linux. For a special purpose I needed a initramfs - that didn't work. The initramfs can be automatically created with sys-kernel/dracut and sys-kernel/genkernel. I also use a conventional initramfs on another computer. If initramfs is used then kernel's rootfs is initramfs and whats next is up to userspace, better-initramfs mounts /newroot and run switch_root there to run /sbin/init. Oct 25, 2023 · (well, cryptkey and root_header are probably obsolete, but for the first shot it should do) If the system is powered on, grub asks for the passphrase, decrypts initramfs/kernel and starts the kernel, the luks container is decrypted, the volumes are set up, and so on - everything is fine. 2-gentoo-r5 Using genkernel. gz & bzImage (kernel) from the PS4 Webbrowser Cache with Kernel 5. Jan 31, 2014 · Kernel itself rely on root= variable. org. Sep 18, 2022 · The tool will look for patterns of initramfs file names in the /boot/ directory automatically. img. An unified kernel image requires a stub loader, e. Gentoo のカーネルビルドユーティリティ Genkernel を initramfs の生成に使用することができます。 genkernel は、カーネルと initramfs がどちらも自身によってビルドさることを期待していますが、場合によっては、 genkernel によってビルドされた initramfs と、他の方法でビルドされた Note It is a common misconception that genkernel will "automatically" generate a custom kernel configuration. 8-hardened-r1 } Jan 2, 2015 · The prebuilt sys-kernel/gentoo-kernel-bin can optionally install a prebuilt generic unified kernel image containing a generic initramfs that is able to boot most systemd based systems. Jul 18, 2024 · Configuration. On arm64 the kernel must be configured with CONFIG_EFI_ZBOOT=y since systemd-stub does not support decompressing the kernel image and as such the kernel must be built with its own decompressor (zboot). com. Jun 28, 2021 · Initramfs/ガイド - Gentoo Wiki; initramfsについて 「わりとシンプルな構成」の initramfs は何をやっているのか. 0 CD, irfs-dir is an empty directory in the same working directory. config linux kernel config. 47-gentoo. img メモ The ro in the above APPEND line will cause the root partition to be mounted read-only (which is usually preferred on USB sticks). It originated, and is mainly used on Fedora and the other distributions that are part of the Red Hat family, but can be used also on community distributions like Gentoo, and Archlinux. This is set of tips why and how to have ZFS on root, making your Gentoo/Linux life much easier. 再び initramfs の話題です。 上記の通り initramfs は cpio アーカイブ、または cpio アーカイブを gzip で圧縮したものです。 System administrators use Gentoo's genkernel tool to generically configure, automatically build and install the Linux kernel, its associated modules, and (optionally, but not enabled by default) an initramfs file. genkernel is having some bit rot. 0-gentoo root (hd0,0) kernel /boot/kernel-3. This results in a configuration where the subvolumes' relative path from the top level An added advantage for me: the initramfs is now decoupled from the kernel since its /lib/modules is no longer needed. But I had to learn that efibootmgr, for the initramfs attribute has to be given the -u, (--UCS-2) option: Aug 5, 2022 · Alternatively the /etc/conf. The default is -6. Bootsplashes are loaded by initramfs so they need to be included in it. Using initramfs is optional. This article does not go into detail on troubleshooting failed results. Aug 1, 2024 · General setup ---> [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support Search for <code>CONFIG_BLK_DEV_INITRD</code> to find this item. For example, for the linux package, use the command: # mkinitcpio -p linux To (re-)generate initramfs images based on all existing presets, use the -P/--allpresets switch. Dec 19, 2022 · Moreover, for the limited environment in which the initramfs operates, many typical vulnerabilities are a non-issue. Identifying the device. org The build-initramfs script follows this process to create an initramfs image:. 47-gentoo vmlinuz-6. We would like to show you a description here but the site won’t allow us. log' for more information and any * errors that were reported above. Mount the root and switch_root into it. Jul 28, 2021 · Notice the 2 spaces wide blank after "on", it seems the exception itself can't tell what's causing the issue. There are currently two initramfs generators that support Plymouth. conf is usually not necessary. There's nothing wrong with this, but when I change kernel configuration, and rebuild the kernel, I keep forgetting to install a initramfs, which results in a un-bootable system. Oct 14, 2022 · Create your boot pool. Use dracut instead. 39. when the vendor of a system (or mainboard) does not supply firmware updates (BIOS updates, which include microcode updates) in a timely manner, when it is preferred to stay on an older version of the system firmware (BIOS, UEFI) for some reason, or when a system Dec 13, 2014 · The prebuilt sys-kernel/gentoo-kernel-bin can optionally install a prebuilt generic unified kernel image containing a generic initramfs that is able to boot most systemd based systems. 2-gentoo-r5 Using genkernel Gentoo's kernel building utility, genkernel , can be used to generate an initramfs, even if genkernel was not used to configure and build the kernel. When you know a bit linux and how it boots, you are better of debugging the initramfs and fixing grub2 and the intiramfs, like i did. eclass and controls a subslot dependency on virtual/dist-kernel. It can be installed by enabling the generic-uki USE flag, and configuring installkernel to not generate a custom initramfs or unified kernel image: 2 days ago · I have a feeling that Arch is the culprit (maybe), as, when looking into its /boot directory, there is a initramfs-linux. So I reduced the initramfs setup to the simplest. I use it for luks-multidisk-btrfs. However, if a Custom Initramfs is used some care initramfs는 tmpfs(유연한 크기의, 메모리 기반 경량 파일 시스템) 기반의 초기 램 파일 시스템이며 분할 블록 장치를 사용하지 않습니다(그래서 캐싱을 사용하지 않으며 먼저 언급한 모든 오버헤드를 없앴습니다). 1 || ( gpl-2 bsd ) gpl-2 gpl-3 gpl-3+ lgpl-2. old I can remove the img files prior to grub-mkconfig in order to make sys_a to boot, but leaving it will cause my system not to boot. Custom Initramfs — the successor of initrd. The normal highest level is -9. 10. But the syntax Dec 21, 2020 · Hi, I have compiled gentoo and everything on old legacy pc, which everything is working fine, but I also have another pc i want to install gentoo which is using EFI, I have using rysnc and disk transferred in whole legacy pc / directory to /dev/sdc1. These kernel packages have three goals: Covering kernel maintenance wholly within packages (install via emerge, upgrade as part of @world upgrade), without requiring additional actions from the user or resorting to non-portable hacks. it is an ahci version and will need the ahci driver built in or an initramfs if May 25, 2024 · Following is an example menu entry file named "gentoo-sources-kernel" where the kernel and initramfs are at /efi/vmlinuz and /efi/initramfs respectively, assuming that the ESP is mounted at /efi like in the example from the Handbook:. µgRD was orignially designed to create a very minimal initramfs for LUKS decryption. 12-gentoo done Jul 23, 2022 · title Gentoo Linux 3. Updating an initramfs image without using genkernel. (It was originally created and written and maintained by me. luks. I have nvidia rtx 30 series gpu and a intel hasswel cpu. * * Report any genkernel bugs to bugs. Aug 11, 2024 · What makes an initramfs. systemd-stub. Right now, the lower bound on kernel version is set in the ebuild to 2. 76-gentoo-r1-x86_64 APPEND root=LABEL=GENTOO_USB_ROOT scandelay=3 ro INITRD . The answer is: The kernel needs ALWAYS /dev/console BEFORE starting an initramfs (even if your initramfs uses a "mount -t devtmpfs none /dev"). 1-gentoo #1 SMP PREEMPT_DYNAMIC Sat Jan 20 16:22:54 GMT 2024 x86_64 AMD May 9, 2024 · An initramfs can be generated automatically through Genkernel, Dracut or manually as Custom Initramfs: genkernel can boot from all types except thin volumes (as it neither builds nor copies the sys-block/thin-provisioning-tools binaries from the build host) and maybe RAID10 (RAID10 support requires LVM2 2. zstd is available in the Linux kernel to support initramfs compression, compressed kernel modules, and compressed swap space. Partition tables and formatting can be performed the same as any other block device. If not, you are not booting the kernel you think you are. Advantages include the initramfs being verified by Secure Boot when it verifies the kernel, a simplified boot process and EFI partition, and it being easier to load the kernel by hand (because callers no longer need to specify the initramfs Feb 25, 2024 · Only on x86, the kernel itself can also perform a microcode update from firmware binary blobs during boot. Either one will produce essentially the same result. If using the tcrypt encryption option (TrueCrypt/tcplay/VeraCrypt compatibility mode), then the following items will also need to be added to the kernel. First, Dracut needs additional files included in the initramfs in order to perform the upgrade. 76-gentoo-r1-x86_64. 52-gentoo and initramfs-genkernel-x86_64-4. 2-r5 root (hd0,0) kernel /boot/kernel-3. efi file. This is the location to use in for the value of the CONFIG_INITRAMFS_SOURCE variable in the . 1+ || ( bsd gpl-2 ) lgpl-2. If the root block device is encrypted, determine the underlying block device. Kernel, dracut, grub configs Jul 19, 2024 · If you are using genkernel initramfs, you may experience bug #156445 which makes it impossible to resume after suspend-to-disk. img initrd=initramfs-%v. @Maxie, there are instructions in that article on how to use genkernel to make a ZFS-capable initramfs. 47-gentoo Jan 23, 2024 · Found initrd image: /boot/initramfs-6. xz -9e. 3. The mdadm. 0-gentoo. 1! * Please consult '/var/log/genkernel. Share. Jan 17, 2020 · Gentoo. . Jan 27, 2024 · Posted: Sat Jan 27, 2024 12:12 pm Post subject: new installation, no initramfs, kernel does not boot SOLVED Welcome to Gentoo Dr_b_2, this boot stuck issue appeared even when i tried multiple different filesystem types, with and without initramfs, for example, it didnt Oct 9, 2010 · kernel /boot/kernel-2. Aug 26, 2023 · zstd is a fast, lossless compression algorithm and tool suite. If the initrd is uncompressed into another image file before using the script, the script detects the new file (6746112 bytes) correctly, does not try to unzip it, but gives the same result for the above code(s). img, whereas in Gentoo /boot there is a initramfs-6. Feb 1, 2006 · wherein gentoo. If your kernel is panicking then debug the problem and keep trying until it works. This can be accomplished with either the --install option or inside a configuration file using the install_items option. Improve this answer. Gentoo Packages Database. img" (because boot partition don't have /boot folder). 1G 0 disk ├─sda1 8:1 0 512M 0 part ├─sda2 8:2 0 20G 0 part Apr 12, 2024 · Supported architectures. Jul 23, 2024 · Finalize the configuration in /boot/refind_linux. img │ └── System. rm -rf /usr/src/linux-5. systemd makes use of many modern Linux kernel features. gentoo. My /boot partition is 500MiB, but the recommended 128MiB should be plenty. 8 Jan 20, 2024 · I disabled initramfs in the kernel, but it's still creating one. The package sys-kernel/installkernel provides two different paths of managing kernel installation. 8-gentoo Found linux image: /boot/kernel-3. ulzrmjf esyc zvpjr dyhms zyqqe zzhg hjax grvexv vzxf jzjmnod