Initramfs gentoo kernel

Initramfs gentoo kernel. title Gentoo Linux. Given that Busybox is static, I ruled it out as the bully, and fiddled about with the kernel and out of sheer desperation even tried the opposite approach, kernel-wise, make defconfig and disabling only obviously unneeded stuff (mostly a plethora of drivers for various network devices I have never owned). sh Script to Build the Initramfs. 4 root=/dev/sda3. genkernel is the version 4. fc35. It is highly advised to disable the Linux bootup logo. A kernel upgrade may be a good idea when new kernel sources are installed. Using initramfs is optional. However, you had to manually rebuild the installed kernel modules (and @module-rebuild is still broken), and sometimes additionally rebuild the initramfs after doing that. image and found it only contains 4 modules while my Nov 4, 2023 · Hi I get stuck at the loading initramfs screen on grub. 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. 1. log to copy log to a custom path. The easiest way to build an initramfs for a specific kernel version is to invoke dracut with the --kver option, and provide the kernel version the initramfs should be built for as argument: $ sudo dracut --kver 5. The initramfs should have a root and it should have loaded it. Adding System. 3 und auch busybox-1. img. txt Example config. "sudo genkernel --install initramfs" I get this output: Code: steve@mernivia ~/linux-2. 1 || ( gpl-2 bsd ) gpl-2 gpl-3 gpl-3+ lgpl-2. Build up your config from the (minimal) default config (default config is what gentoo-sources brings with; NOT what genkernel brings with). Run “usr/gen_init_cpio” (after the kernel build) to get a usage message documenting the above file format. I made sure to enable NVME in the kernel, which is needed for the SSD drive, and I also enabled SCSI, DM_CRYPT and the required ciphers. Hi. bin. 1 gpl-3 gpl-3+ bsd bsd Feb 1, 2006 · This is normal. However, when it tries to load the kernel, it hangs: Code: Loading Linux 4. file /init initramfs/init. Oct 5, 2014 · Building kernel configuration from scratch is a massive effort - 100s of questions. 9, and after i have made my new kernel, i try to generate my initramfs, but i have a very strange problem with sandbox. Jan 12, 2024 · sys-kernel/gentoo-kernel (built from source, customizable) sys-kernel/gentoo-kernel-bin (prebuilt) The project currently maintains two LTS branches (5. ROOT= /dev/vg/root. I have managed to run "grub2-mkconfig" on it. Building the compressed kernel bzImage and copying it to /boot. This requires no more involvement than running an emerge Jul 30, 2005 · From what I can tell off of the kernel list, initramfs is the start of some really major boot changes, not the least of which is deprecation of non-modular kernels - all "*" that can be "M" will be "M", and the "*" will go away. Genkernel is expecting --config= to be a genkernel config file, if you don't want to use the default. The initramfs was slipped into Gentoo, almost by stealth, with 2. The original initramfs is a concatenation of several cpio archives. Hello Gentoo People, I've been having some difficulty with initramfs recognizing my standard usb keyboard / all usb devices. 27+. 2) Path to initramfs. 4. Usually, the last EOL version is also kept for a short time. I use to move generated kernel and initramfs files in tree directory from /boot: old (previous compiled kernel files) default (actual functioning kernel) test (new kernel) in each directory there is: vmlinuz-genkernel-x86_64-<version>. Feb 21, 2024 · Distribution kernels. However some Feb 18, 2024 · Hibernation ( suspend to disk) is a special case. If you have eselect emerged try "eselect kernel list" and see if your 2. Found initrd image: /boot/initramfs-5. You are passing genkernel the kernel config file. You use /usr/lib64/libssl3. 60 in the tree and after reboot I cant boot: after decrypting the disk successfully the following message appears: "cant find root in /dev/mapper/vg0-lvo1" or something like this. I'll release 4. Feb 21, 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. Mar 25, 2020 · (In reply to Thomas Deutschmann from comment #15) > OK, thanks for testing. Same issue with ibcrypto. So Feb 20, 2024 · Posted: Sat Feb 10, 2024 1:04 am Post subject: Classic very old grub kernel & initramfs BACKGROUND: I've been running gentoo for 20 years, and I have always built my kernels the old fashioned way, but I haven't built a kernel in several years now, and I am trying to clean up my Lenovo Thinkpad W530. Jan 2, 2015 · root # emerge --ask sys-kernel/gentoo-sources. Code: CONFIG_GENTOO_PRINT_FIRMWARE_INFO=y. 4 and 5. Support for different install layouts is provided by reusing the Feb 4, 2021 · The initramfs contains kernel modules; so if anything has changed in the modules included in your initramfs, you need to generate a new one. Strip down your kernel config, OR. 39. If using an initramfs, add that to the config. The trouble is that whenever I run "sudo genkernel --install initramfs" I get this output: Oct 9, 2010 · An interactive shell would be much nicer here because you can save the output into the initramfs to view it piecemeal and because you can explore the initramfs to understand exactly why creation of the device node fails. * Running with options: --install initramfs. Where would I find a basic . Other than that, for the same kernel version, no, you shouldn’t need to generate a new initramfs if you already have one. 9. 28 boots flawlessly. genkernel is a tool created by Gentoo used to automate the build process of the kernel and initramfs. txt as well: FILE /boot/config. 49. It can be installed by enabling the generic-uki USE flag, and configuring installkernel to not generate a custom initramfs or unified kernel image: Feb 24, 2024 · Posted: Sat Feb 10, 2024 1:04 am Post subject: Classic very old grub kernel & initramfs BACKGROUND: I've been running gentoo for 20 years, and I have always built my kernels the old fashioned way, but I haven't built a kernel in several years now, and I am trying to clean up my Lenovo Thinkpad W530. kernel=kernel-genkernel-arm-3. Nota. Die Fehler blieben jedoch die selben. 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. so in initramfs, while cryptsetup requires /usr/lib64/libssl. If you haven't done all that first and delete your initramfs, then your Feb 25, 2024 · Distribution kernels. Also tried to mount the root rw - no change. 17. It is the successor of initrd. Use the genkernel --menuconfig all command (or equivalent) in order to modify the kernel configuration. As soon as the kernel gets an initramfs (no matter if embedded or as external CPIO) at boot time, it doesn't do this job anymore. Now it's the initramfs job to mount the root Getting closer, but unfortunately it looks like udev is running; 'rc-service udev status' reports the service as started and there is a systemd-udevd process in the process list. The older kernel 5. I extracted the initramfs-5. Dec 22, 2023 · So now I understand that I can just leave this initramfs image as-is for a while and it shouldn't need maintenance. Nov 14, 2021 · Gentoo's Bugzilla – Bug 823716 sys-kernel/genkernel with glibc-2. 6 days ago · Kernel. 3) Command line. 6. 2. Look: Code: Jan 22, 2024 · 1. If you intend to use this, you should have a really good understanding of how Linux works, particularly how its various storage layers play together. org> gen_initramfs. Apr 9, 2016 · If the kernel panicked, it would not give you a shell :( If it didn't scroll off the screen during initramfs running, looks like it did not initialize LVM (initramfs is needed) The initramfs did not load. With dm-crypt, administrators can encrypt entire disks, logical volumes, partitions, but also single files. 3, cryptsetup in my system uses libcrypto. Jul 7, 2021 · FILE /boot/grub/grub. Now it is time to configure and compile the ユーザーのシステム用の initramfs (圧縮された cpio アーカイブ) 作成を支援する自動ツールがいくつかあります。. Nov 7, 2010 · I have tried a 2. Future kernel updates are fully automated since they are handled through the package manager, just like any other system package. FILE build-initramfs. 6 Posted: Sun Nov 09, 2014 12:43 pm Post subject: [SOLVED]Booting without initramfs. Sep 5, 2018 · 1) EFI stub stuff - to be able to boot directly from UEFI (as described here ). This will install the Linux kernel sources in /usr/src/ in which a symbolic link called linux will be pointing to the installed kernel source: root # ls -l /usr/src/linux. But, in order to be signed, the external initrd (it loads as initrd, despite being an initramfs) should still be a part of the kernel. EDIT3: Just a few hints for future readers. log on root device (see root or real_root kernel command-line parameter above). sh Jan 16, 2021 · Initially, this meant configuring, building and installing the kernel during the @world upgrade. 29-gentoo-r5 kernel with a most similar config and the failure is the same but the last line reads now: "Kernel panic - not syncing: Attempted to kill init!". 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. Go check your efibootmgr and make sure the initramfs is specified properly When set to a boolean value, genkernel will preserve /tmp/init. 0. 14. config for a simple vmware workstation 64bit VM to start with? Back to top Jul 18, 2023 · Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo! Gentoo's Bugzilla – Bug 909650 sys-kernel/genkernel-4. Apr 25, 2024 · 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). That still produced an initramfs file in /boot when make install was run. 同様に、完全なコントロールを望むユーザーは個人用のカスタム initramfs を簡単に手動 initramfs is a root filesystem that is embedded into the kernel and loaded at an early stage of the boot process. As you have. To address this, we have introduced a new dist-kernel USE flag. The package sys-kernel/installkernel provides two different paths of managing kernel installation. 49-r1 even on a fresh install the keyboard works. lrwxrwxrwx 1 root root 12 Oct 13 11:04 /usr/src/linux -> linux-3. Apr 5, 2021 · This initramfs is intended for a setup where /boot is encrypted (LVM inside Luks). Right now, the lower bound on kernel version is set in the ebuild to 2. Of course, they can be installed directly using the next command Apr 16, 2024 · dm-crypt is a disk encryption system using the kernels crypto API framework and device mapper subsystem. Now the kernel boots fine, but because I used genkernel I now have a initramfs. No errors, and not even a single kernel message 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. Feb 10, 2024 · As regards building the initramfs, my preference has always been to use the kernel's built-in support for composing an initramfs (CONFIG_INITRAMFS_SOURCE), which also embeds it into the resulting kernel image. 16. On some systems having the bootup logo displayed seems to cause problems. 35-gentoo-r9 verwendet und sda4 hatte ext3 als Filesystem. From this flow, it follows that the initramfs only needs to decrypt swap + root, and decryption of any other filesystems can be delegated to the main init system on root. map is not necessary. It provides early userspace which can do things the kernel can't easily do by itself during the boot process. It complained about the kernel being different from the module during my installation (big shocker there, picking a new kernel was part of the install). This is changed in the configuration file /boot/config. txt. Found linux image: /boot/vmlinuz-5. Disadvantages are reduced flexibility, the ease of making a mistake, and using an unconventional boot Dec 14, 2021 · Building an initramfs for a specific kernel version. make distclean after building an initramfs does not prevent the kernel initramfs file from being built, even if it is deselected in make menuconfig. I am using both and have barely any issues with them. Go check your efibootmgr and make sure the initramfs is specified properly genkernel is a tool created by Gentoo used to automate the build process of the kernel and initramfs. If this works, you have a file missing or typoed in you firmware listing in the kernel. Removed the initrd/initramfs option and re-run make. 34 fails to create initramfs: Thomas Deutschmann <whissi@gentoo. I rebuild it as only one cpio archive, but I don't think it matters for the kernel. the problem here is every kernel image is missing, the correct output should be something like this: Code: Generating grub configuration file Found linux image: /boot/vmlinuz-5. efibootmgr. My questions would be: Where is your kernel ? Feb 2, 2024 · 1. The primary advantage of this method is that the kernels are updated to new versions by the package manager as part of @world upgrade. Run make distclean to get rid of all configuration files, then redo the config to disable initrd/initramfs, make and make install. 1+ || ( bsd gpl-2 ) lgpl-2. On boot, it says OK to loading the kernel image, and then it halts. Nov 10, 2016 · Installing and using a new kernel. The trouble is that whenever I run. Some of the general features include: Configuring the kernel sources. 13-gentoo Two lights on my keyboard flash which usually happens when there's some kind of driver malfunction. I have downloaded and compiled a nouveau-kernel. When I first installed gentoo, I used genkernel, because my manual configuration weren't working. If you’re using Gentoo Linux, simply navigate to: cd /usr/src/linux. 1 lgpl-2 || ( bsd gpl-2 ) lgpl-2. you will see all the firmware files listed in dmesg. If for some reason an initramfs is needed, it can either be embedded into the kernel or be used as a separate file. _____ Regards, NeddySeagoon Computer users fall into two groups:- those that do backups those that have never had a hard drive fail. conf. I just updated my kernel into the latest stable version 5. Creating an initramfs and copying it to /boot. Install a small initramfs for use with CONFIG_MICROCODE_EARLY: sys-kernel/gentoo-kernel: Build initramfs along with the kernel. You can also set your own file like /root/my-genkernel-boot. Distribution Kernels are ebuilds that cover the complete process of unpacking, configuring, compiling, and installing the kernel. sys-kernel/linux-firmware: Create and install initramfs for early microcode loading in /boot (only AMD for now) sys-kernel/vanilla-kernel The Gentoo Wiki says that having an initramfs is optional, but my system wouldn't boot after I removed it. Nach der neuen Installation habe ich den Kernel 2. sorry to no be able to help on this that much. This makes the image a bit bigger and is less space efficient, since every kernel has a copy of the initramfs, even if you never change it. FILE /boot/config. Code: grub-install --target=x86_64-efi --efi-directory=/boot --modules="part_gpt lvm ext2". But the initramfs was still in /boot. もっともよく使われているのが dracut と genkernel です。. 35-gentoo-r10 probiert und als FS ext4 gewählt. this is wierd, beacuse i'm using a kernel config that i know works, and a partition setup and initramfs init script that i know works (i had a very similar setup that worked fine) any help is appreciated here are some of the files that (i think) are relevant: init script: Gentoo's Bugzilla – Bug 695664 sys-kernel/genkernel-next-70: fail to gen initramfs on kernel 5. The install was successful and grub boots normally. as far as I understand you wanted to build your own kernel with a smaller configuration and without initramfs (genkernel uses). There's nothing wrong with this, but when I change kernel configuration, and Jan 13, 2024 · I'm a complete noob, but I couldn't figure dracut out. title Gentoo Linux 3. Yeah, all I got was Kernel panics when Busybox should have taken over. Kernel, dracut, grub configs Dec 19, 2022 · The resumed kernel will already have root unlocked as part of its saved state, so the root device encryption password is not needed for resuming (but is needed for a clean boot). Both of them work fine for what they are made for. Dec 13, 2014 · A Distribution Kernel is used to configure, automatically build, and install the Linux kernel, its associated modules, and (optionally, but enabled by default) an initramfs file. One advantage of the configuration file is that root access is not required to set permissions or create device nodes in the new archive. Genkernel figured out the right kernel and modules to use worked great. Trying it out I asked for the content of file from CONFIG_INITRAMFS_SOURCE (if you build initramfs into kernel), but tree view with attributes is okay. The first is systemd 's kernel-install, the second is the traditional installkernel originating from Debian. And that's it. Bootup logo. Next, update the NVRAM creating a new boot entry using e. grub2 can boot from this. systemd makes use of many modern Linux kernel features. To use genkernel for generating an initramfs, it is recommended all necessary drivers and code that is needed to mount the / and /usr file systems be included in the kernel (not as modules). Apr 25, 2024 · Kernel. To use genkernel for generating an initramfs, it is recommended 1- Removing initrd/initramfs Support from the Linux Kernel. 12. txt to load the new kernel. g. make install still builds and installs initramfs even if the kernel config is changed to disable initramfs. 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). It is possible provide a custom kernel configuration file if customization is necessary. 2-r5 root (hd0,0) kernel /boot/kernel-3. txt with an initramfs. This flag is Mar 21, 2022 · Posted: Tue Apr 05, 2022 7:58 am Post subject: Generally speaking Genkernel does include the entire process of building a kernel and initramfs, while Dracut does only support building the initramfs. I assume I can hardcode a name in the kernel config so I don't have to do this every time a new kernel comes out. sys-kernel/gentoo-kernel-bin: Build initramfs along with the kernel. 15. 0-gentoo. Dec 19, 2019 · Our distribution kernel package installs the kernel into an interim location which is entirely setup-independent, rendering the binary packages setup-agnostic as well. But I > still don't understand why you need them and others don't. 5-gentoo. 2-gentoo-r5 genkernel 사용하기 젠투 커널 빌드 유틸리티인 genkernel 는 커널 설정 및 빌드에 genkernel 을 사용하지 못하더라도 initramfs를 만드는데 사용할 수 있습니다. I have managed to compile it successfully. For details, please refer to Dracut page. I am able to boot my kernel if I build the initramfs in: I decompress the initramfs generated with genkernel in a directory, and then specify that directory as the initramfs source in the kernel config. Everything works just fine in grub but when I get to initramfs everything is gone and unable to type in the luks passphrase. Dracut's on my list Dec 21, 2020 · done. (Note that those two example “file Again booting with initramfs and everything works. It's "optional" only in that if you do all the work to make sure everything you need is included in the kernel, then you can boot your system without an initramfs. 3 fails on libxcrypt with Perl 5. 12-gentoo-r9') and created a working system -- enough to do e-mail and web-browsing, anyway -- I decided to tackle my remaining problems with printing and sound (namely, that neither had been enabled). Now make sure you have ncurses installed and run: make menuconfig. Oct 18, 2018 · Instead of changing the embedded initramfs (which has some delicate parts in it) it would be much better to use the mechanism that exists in the kernel for merging an external initramfs with the internal one. Ich habe busybox-1. 38 Last modified: 2023-07-18 21:51:45 UTC node [vulture] . Password: * Gentoo Linux Genkernel; Version 3. 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): gpl-2 generic-uki? ( gpl-2+ lgpl-2. 1-r1 probiert, ohne jeglichen Erfolg. Mar 28, 2024 · A Distribution Kernel is used to configure, automatically build, and install the Linux kernel, its associated modules, and (optionally, but enabled by default) an initramfs file. I have downloaded it to my /home directory. Generally, the following command will generate a usable default initramfs. And you suggest that I continue to leave it as a separate image as opposed to building it into the kernel? Dec 19, 2022 · The resumed kernel will already have root unlocked as part of its saved state, so the root device encryption password is not needed for resuming (but is needed for a clean boot). 2. 4) XZ compression (added for x86, and removed for the architectures that I don't need). Oct 17, 2005 · dir /mnt 755 0 0. 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. 10), plus newer branches that are marked stable at the time. Creating symlinks in /boot. The method given on the Linux kernel mailing list (this article, step 3) is exactly the same. so. 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. Feb 21, 2024 · Posted: Sat Feb 10, 2024 1:04 am Post subject: Classic very old grub kernel & initramfs BACKGROUND: I've been running gentoo for 20 years, and I have always built my kernels the old fashioned way, but I haven't built a kernel in several years now, and I am trying to clean up my Lenovo Thinkpad W530. Before there comes the switch_root usage again. This requires no more involvement than running an emerge 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. Specific kernel options must be altered in order to get Plymouth working properly. Oct 1, 2023 · For example, I wrote in one of my wiki articles that the kernel normally mounts the root partition (also so it can read some modules) as long as no initramfs is used. Both options may be overridden by specifying a new file name and kernel version on the command line, in that order. This will check that its not a broken amdgpudrmfb taking over from EFI framebuffer before there is any output. ビルド済みの sys-kernel/gentoo-kernel-bin は任意で、ほとんどの systemd ベースのシステムをブートすることができるジェネリックな initramfs を含む、ビルド済みのジェネリック unified カーネルイメージをインストールすることができます。 Having successfully installed Gentoo Linux on my AMD Sempron 2500+ system (using genkernel, resulting in 'kernel-genkernel-x86-2. 0-nouveau+). Now go to General Setup then search for CONFIG_BLK_DEV_INITRD and disable it: Gentoo Packages Database. If I revert back to the 4. Hello, today, i update my kernel to 5. x86_64. Apr 13, 2024 · Installkernel is a collection of scripts to automatically install new kernels and update bootloader configuration. Apr 17, 2023 · Gentoo's kernel building utility, Genkernel, can be used to generate an initramfs. *. EDIT2: Boot with no errors accomplished! I just needed to uncomment the map line in lilo. root (hd0,0) kernel /kernel-3. Looks like it just build an initramfs for the kernel you booted into (3. 0-r2. 2-gentoo-r5 initrd /boot/initramfs-3. Optional: Initramfs. conf GRUB Legacy partition example. If your boot parition is not encrypted, simply remove anything related to crypto_key. 6 $ sudo genkernel --install initramfs. Aug 29, 2020 · My grub is configured to load initram and kernel generated by genkernel. 1 on my system. May 11, 2022 · By default, the Raspberry Pi looks for a kernel in /boot/kernel. log, see above, and copy file to /genkernel-boot. Jan 2, 2015 · System administrators may use Gentoo's genkernel tool to configure, build, and install the Linux kernel, its associated modules, and (optionally, but not enabled by default) an initramfs file. cpio. The dm-crypt subsystem supports the Linux Unified Key Setup (LUKS) structure, which allows for multiple keys to access the encrypted I asked for the content of file from CONFIG_INITRAMFS_SOURCE (if you build initramfs into kernel), but tree view with attributes is okay. It was as simple as genkernel --lvm initramfs. New kernel sources are sometimes installed while updating the system by running the following command: root # emerge --ask --update --deep --with-bdeps=y --newuse @world. 14-300. The initramfs is created and installed into the final location along with the kernel in pkg_postinst. 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. I have nvidia rtx 30 series gpu and a intel hasswel cpu. sh 755 0 0. Oct 10, 2010 · Bei der ersten Installation habe den Kernel 2. Having your video card drivers properly set is (no udev in initramfs to provide additional modules). It knows where to look for that. x Last modified: 2020-08-20 12:51:05 UTC node [vulture] While gentoo-kernel-bin is not mentioned much in the wiki as it actually should be a ready-to-use kernel with universal configuration, there is no description about the USE=initramfs there. 8. 5 with these patches shortly. Apr 25, 2024 · By default, dracut will produce an image suitable for booting the currently active kernel; it will pull the kernel modules needed for that kernel, etc. Those are the steps I have followed: Code: Jun 2, 2018 · Alternatively the fallback directory /boot/EFI/Boot could be used additionally to or instead of /boot/EFI/Gentoo. 3. 1. _____ Some day there will only be free software. The image will be written in a file called /boot/initramfs-<kernel version>. Dec 12, 2023 · The sys-kernel/dracut package was ported from the RedHat project and serves a similar tool for generating an initramfs. 20. ev nk kh vm ji tr qf ix nu lr