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We have fresh 6.6 kernels in /testing! You may notice that on the 32-bit side we have done away with the -smp labeled kernel packages, but it's actually the other kernels that were retired -- the non-SMP, non-PAE ones. If you were previously using kernel-generic-smp or kernel-huge-smp, you'll need to make some adjustments to your bootloader setup to load kernel-generic or kernel-huge instead. About the only non-obsolete CPUs that may have an issue with this are the first generation Pentium M chips, which supported PAE but unfortunately did not advertise this in the CPU flags. But these will support PAE if the kernel option "forcepae" is appended at boot time. Enjoy! :-) a/gettext-0.22.4-x86_64-1.txz: Upgraded. a/kbd-2.6.3-x86_64-3.txz: Rebuilt. Installed extra console fonts. a/kernel-firmware-20231120_9552083-noarch-1.txz: Upgraded. a/kernel-generic-6.1.63-x86_64-1.txz: Upgraded. a/kernel-huge-6.1.63-x86_64-1.txz: Upgraded. a/kernel-modules-6.1.63-x86_64-1.txz: Upgraded. a/mkinitrd-1.4.11-x86_64-34.txz: Rebuilt. Fix tests for including jfs/xfs repair tools. Thanks to regdub. a/pkgtools-15.1-noarch-8.txz: Rebuilt. Make vim the default vi choice. ap/vim-9.0.2116-x86_64-1.txz: Upgraded. d/gettext-tools-0.22.4-x86_64-1.txz: Upgraded. d/git-2.43.0-x86_64-1.txz: Upgraded. d/kernel-headers-6.1.63-x86-1.txz: Upgraded. d/mercurial-6.6-x86_64-1.txz: Upgraded. d/meson-1.3.0-x86_64-1.txz: Upgraded. d/scons-4.6.0-x86_64-1.txz: Upgraded. k/kernel-source-6.1.63-noarch-1.txz: Upgraded. l/readline-8.2.007-x86_64-1.txz: Upgraded. n/c-ares-1.22.1-x86_64-1.txz: Upgraded. n/nfs-utils-2.6.4-x86_64-1.txz: Upgraded. x/libdrm-2.4.118-x86_64-1.txz: Upgraded. xap/mozilla-firefox-115.5.0esr-x86_64-1.txz: Upgraded. This update contains security fixes and improvements. Thanks to zuriel for the taskbar icon fix on Wayland. :-) For more information, see: https://www.mozilla.org/en-US/firefox/115.5.0/releasenotes/ https://www.mozilla.org/security/advisories/mfsa2023-50/ https://www.cve.org/CVERecord?id=CVE-2023-6204 https://www.cve.org/CVERecord?id=CVE-2023-6205 https://www.cve.org/CVERecord?id=CVE-2023-6206 https://www.cve.org/CVERecord?id=CVE-2023-6207 https://www.cve.org/CVERecord?id=CVE-2023-6208 https://www.cve.org/CVERecord?id=CVE-2023-6209 https://www.cve.org/CVERecord?id=CVE-2023-6212 (* Security fix *) xap/vim-gvim-9.0.2116-x86_64-1.txz: Upgraded. xap/xsnow-3.7.6-x86_64-1.txz: Upgraded. isolinux/initrd.img: Rebuilt. kernels/*: Upgraded. testing/packages/kernel-generic-6.6.2-x86_64-1.txz: Added. testing/packages/kernel-headers-6.6.2-x86-1.txz: Added. testing/packages/kernel-huge-6.6.2-x86_64-1.txz: Added. testing/packages/kernel-modules-6.6.2-x86_64-1.txz: Added. testing/packages/kernel-source-6.6.2-noarch-1.txz: Added. usb-and-pxe-installers/usbboot.img: Rebuilt.
99 lines
3.5 KiB
Text
99 lines
3.5 KiB
Text
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Slackware initrd mini HOWTO
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by Patrick Volkerding, volkerdi@slackware.com
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Mon Nov 20 21:34:50 UTC 2023
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This document describes how to create and install an initrd, which may be
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required to use the 4.x kernel. Also see "man mkinitrd".
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1. What is an initrd?
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2. Why to I need an initrd?
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3. How do I build the initrd?
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4. Now that I've built an initrd, how do I use it?
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1. What is an initrd?
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Initrd stands for "initial ramdisk". An initial ramdisk is a very small
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Linux filesystem that is loaded into RAM and mounted as the kernel boots,
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and before the main root filesystem is mounted.
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2. Why do I need an initrd?
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The usual reason to use an initrd is because you need to load kernel
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modules before mounting the root partition. Usually these modules are
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required to support the filesystem used by the root partition (ext3, ext4,
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btrfs, xfs), or perhaps the controller that the hard drive is attached
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to (SCSI, RAID, etc). Essentially, there are so many different options
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available in modern Linux kernels that it isn't practical to try to ship
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many different kernels to try to cover everyone's needs. It's a lot more
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flexible to ship a generic kernel and a set of kernel modules for it.
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3. How do I build the initrd?
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The easiest way to make the initrd is to use the mkinitrd script included
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in Slackware's mkinitrd package. We'll walk through the process of
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upgrading to the generic 6.1.63 Linux kernel using the packages
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found in Slackware's slackware/a/ directory.
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First, make sure the kernel, kernel modules, and mkinitrd package are
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installed (the current version numbers might be a little different, so
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this is just an example):
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installpkg kernel-generic-6.1.63-x86_64-1.txz
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installpkg kernel-modules-6.1.63-x86_64-1.txz
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installpkg mkinitrd-1.4.11-x86_64-34.txz
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Change into the /boot directory:
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cd /boot
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Now you'll want to run "mkinitrd". I'm using ext4 for my root filesystem,
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and since the disk controller requires no special support the ext4 module
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will be the only one I need to load:
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mkinitrd -c -k 6.1.63 -m ext4
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This should do two things. First, it will create a directory
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/boot/initrd-tree containing the initrd's filesystem. Then it will
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create an initrd (/boot/initrd.gz) from this tree. If you wanted to,
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you could make some additional changes in /boot/initrd-tree/ and
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then run mkinitrd again without options to rebuild the image. That's
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optional, though, and only advanced users will need to think about that.
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Here's another example: Build an initrd image using Linux 6.1.63
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kernel modules for a system with an ext4 root partition on /dev/sdb3:
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mkinitrd -c -k 6.1.63 -m ext4 -f ext4 -r /dev/sdb3
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4. Now that I've built an initrd, how do I use it?
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Now that you've got an initrd (/boot/initrd.gz), you'll want to load
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it along with the kernel at boot time. If you use LILO for your boot
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loader you'll need to edit /etc/lilo.conf and add a line to load the
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initrd. Here's an example section of lilo.conf showing how this is
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done:
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# Linux bootable partition config begins
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image = /boot/vmlinuz-generic
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initrd = /boot/initrd.gz
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root = /dev/sda6
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label = Slackware
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read-only
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# Linux bootable partition config ends
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The initrd is loaded by the "initrd = /boot/initrd.gz" line.
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Just add the line right below the line for the kernel image you use.
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Save the file, and then run LILO again ('lilo' at the command line).
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You'll need to run lilo every time you edit lilo.conf or rebuild the
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initrd.
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Other bootloaders such as syslinux also support the use of an initrd.
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See the documentation for those programs for details on using an
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initrd with them.
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---------
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Have fun!
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