56 lines
1.9 KiB
Markdown
56 lines
1.9 KiB
Markdown
---
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title: "Gentoo Kernel Upgrades"
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description: Gentoo kernel upgrades on adyxax.org
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tags:
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- gentoo
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- linux
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---
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## Introduction
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Now that I am mostly running OpenBSD servers I just use genkernel to build my custom configuration on each node with :
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{{< highlight sh >}}
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eselect kernel list
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eselect kernel set 1
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genkernel all --kernel-config=/proc/config.gz --menuconfig
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nvim --diff /proc/config.gz /usr/src/linux/.config
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{{< / highlight >}}
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Bellow you will find how I did things previously when centralising the build of all kernels on a collab-jde machine, and distributing them all afterwards. Local nodes would only rebuild local modules and get on with their lives.
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## Building on collab-jde
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{{< highlight sh >}}
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PREV_VERSION=4.14.78-gentoo
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eselect kernel list
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eselect kernel set 1
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cd /usr/src/linux
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for ARCHI in `ls /srv/gentoo-builder/kernels/`; do
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make mrproper
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cp /srv/gentoo-builder/kernels/${ARCHI}/config-${PREV_VERSION} .config
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echo "~~~~~~~~~~ $ARCHI ~~~~~~~~~~"
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make oldconfig
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make -j5
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INSTALL_MOD_PATH=/srv/gentoo-builder/kernels/${ARCHI}/ make modules_install
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INSTALL_PATH=/srv/gentoo-builder/kernels/${ARCHI}/ make install
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done
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{{< / highlight >}}
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## Deploying on each node :
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{{< highlight sh >}}
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export VERSION=5.4.28-gentoo-x86_64
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wget http://packages.adyxax.org/kernels/x86_64/System.map-${VERSION} -O /boot/System.map-${VERSION}
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wget http://packages.adyxax.org/kernels/x86_64/config-${VERSION} -O /boot/config-${VERSION}
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wget http://packages.adyxax.org/kernels/x86_64/vmlinuz-${VERSION} -O /boot/vmlinuz-${VERSION}
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rsync -a --delete collab-jde.nexen.net:/srv/gentoo-builder/kernels/x86_64/lib/modules/${VERSION} /lib/modules/
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eselect kernel set 1
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cd /usr/src/linux
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cp /boot/config-${VERSION} .config
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cp /boot/System.map-${VERSION} System.map
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(cd usr ; make gen_init_cpio)
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make modules_prepare
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emerge @module-rebuild
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genkernel --install initramfs --ssh-host-keys=create-from-host
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grub-mkconfig -o /boot/grub/grub.cfg
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{{< / highlight >}}
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