xm-install

#!/bin/bash
# -----------------------------------------------------------------------
#   Install kernel.
#   Author: Mario Roy - http://github.com/marioroy
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, version 2 or later of the License.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
# -----------------------------------------------------------------------

# shellcheck disable=SC2012,SC2086

# Capture the active kernel release, for safety to not replace self.

kversion="$(uname -r)"       # e.g 6.1.54-100.xmbore
kvariant="${kversion}"
kvariant="${kvariant##*.}"   # xmbore
kversion="${kversion%.*}"    # 6.1.54-100

function xm_install {
    local variant="$1"; local release="$2"; local base_name="linux-${1}"
    echo "Installing linux-${variant}"

    if [[ -n "$release" ]]; then
        # Install given xm_variant release (e.g. 100).
        file1=$(ls -1t "${base_name}"-license-*-"${release}".x86_64.rpm | head -1)
        file2=$(ls -1t "${base_name}"-[0-9]*-"${release}".x86_64.rpm | head -1)
        file3=$(ls -1t "${base_name}"-extra-*-"${release}".x86_64.rpm | head -1)
        file4=$(ls -1t "${base_name}"-dev-*-"${release}".x86_64.rpm | head -1)
    else
        # Install newest xm_variant (time stamp).
        file1=$(ls -1t "${base_name}"-license-*.x86_64.rpm | head -1)
        file2=$(ls -1t "${base_name}"-[0-9]*.x86_64.rpm | head -1)
        file3=$(ls -1t "${base_name}"-extra-*.x86_64.rpm | head -1)
        file4=$(ls -1t "${base_name}"-dev-*.x86_64.rpm | head -1)
    fi

    if [[ -z "$file1" || -z "$file2" || -z "$file3" || -z "$file4" ]]; then
        echo "Aborting installation! One or more files are missing."
        exit 2
    fi
    if [[ "$file2" == "linux-${kvariant}-${kversion}.x86_64.rpm" ]]; then
        echo "Cannot replace the live kernel ${file2//.x86_64.rpm/}"
        exit 0
    fi

    sudo rm -f "/usr/lib/default-${variant}"
    sudo mkdir -p /usr/lib/modules

    if ! sudo rpm -ivh --nodeps --force "$file1" "$file2" "$file3" "$file4"; then
        # Cleanup before exiting if the 'rpm' command failed.
        # Create default symbolic link if another release exists on the system.

        cd "/usr/lib/kernel" || exit 1
        other_kernel=$(ls -1t "org.clearlinux.${variant}".* 2>/dev/null | head -1)
        [[ -n "$other_kernel" ]] && sudo ln -sf "$other_kernel" "default-${variant}"

        exit 2
    fi

    sudo clr-boot-manager update

    if [[ -d "/var/lib/dkms/nvidia" ]]; then
        echo "Building kernel drivers for NVIDIA graphics"
        xm_variant=${base_name#*-}  # i.e. xmbore

        if [[ "$variant" == *"-rt"* ]]; then
            kernel=$(echo "${file2//.x86_64.rpm/}" | cut -d- -f4-).$xm_variant
        else
            kernel=$(echo "${file2//.x86_64.rpm/}" | cut -d- -f3-).$xm_variant
        fi

        sudo rm -fr /var/lib/dkms/*/kernel-${kernel}-x86_64
        sudo rm -fr /var/lib/dkms/*/*/${kernel}

        sudo CFLAGS="" CXXFLAGS="" IGNORE_PREEMPT_RT_PRESENCE=1 \
             nice -n 12 dkms autoinstall -k "$kernel" --force >/dev/null

        sudo depmod -A "$kernel"
    fi

    echo "done."
}

case "$1" in
    bore | bore-rt )
        cd "rpmbuild/RPMS/x86_64" || exit 1
        xm_install "xm${1}" "$2"
        ;;
    * ) echo "synopsis"
        echo "   $0 bore | bore-rt [<rel>]"
esac