我根本无法使用 APT 命令

Question

我经常遇到这种问题。我运行一堆 KODI 盒（我创建的），它们都通过 PXE 从专用服务器启动。因此，当我通过 chroot（或其他方式）更新我的 PXE 盒时，我经常会遇到内核更新问题。所以，最近我决定创建一个脚本，它将创建 depmod/apt-get 正在寻找的垃圾，以便您可以正确删除这些内核。

要运行脚本，只需将代码复制并粘贴到文件中。在终端中，输入以下内容使其可执行：

$> chmod +x fixKernels.sh

其中“fixKernels.sh”是脚本的名称。

从那里，通过键入以下内容运行脚本：

$> sudo ./fixKernels.sh

然后只需按照指示操作即可。

#!/bin/bash

####################################################
#
# NAME: fixKernels.sh
#
#
# DESCRIPTION: This script was designed to create
# fake kernel entries in places depmod and apt-get
# would normally look for existing kernels. The purpose
# of this script is to trick depmod or apt-get into
# believing these kernels exist on your system so it
# can successfully remove them without causing errors
# and preventing YOU from installing other things.
#
####################################################

# Spinner! Shows a rotating line animation
spinner()
{
    sleep 1
    PROC=$1
    BACKSPACE='\010'
    SPINNER='|/-\'
    INDEX=0
    while [ -d /proc/$PROC ]
    do
        echo -n -e "${SPINNER:$INDEX:1}"
        sleep 0.2
        (( INDEX = ($INDEX + 1) % 4 ))
        echo -n -e "$BACKSPACE"

    done

}

# Check for root
cp /etc/shadow /tmp/isroot 2>/dev/null

# IF ROOT
if [ ! -f /tmp/isroot ]; then
    echo "You ain't root, baby!"
    exit
else
    # Remove temp file
    rm /tmp/isroot
fi

# Make sure parameter is not empty
if [[ $1 != "" ]] && [[ `echo $1 | grep -i "linux"` == "" ]]; then

    # Needed echo! Great for displaying purposes
    echo

    # Determine if uname exists
    if [[ ! -d /lib/modules/`uname -r` ]]; then

        # Examine all the kernels found on the system
        for x in `ls -l /lib/modules | awk '{print $9}'`
        do

            # Determine that all the pieces exist before we use them!
            if [[ -f /boot/System.map-$x ]] && [[ -f /boot/vmlinuz-$x ]]; then

                # Use whatever we've got!!
                UNAME=$x

            fi


        done

        # IF the pieces aren't found... Not much else we can do!!
        if [[ $UNAME == "" ]]; then

            # Error
            echo "There's no kernel found on your system!! How are you reading this??"

            # Exit the script
            exit

        fi

    else # We've got what we need

        UNAME=`uname -r`
    fi

    # Make sure the kernel isn't copying on top of itself
    if [[ $1 != $UNAME ]]; then

        # Create a fake version of that kernel
        echo "Creating Fake System Map..."
        sudo cp /boot/System.map-$UNAME /boot/System.map-$1 -rfap &

        # Create a short animation to show user it's working
        spinner $!

        # Create the vmlinuz... But it's fake
        echo "Creating Fake Vmlinuz..."
        sudo cp /boot/vmlinuz-$UNAME /boot/vmlinuz-$1 -rfap &

        # Create a short animation
        spinner $!

        # Create the fake modules
        echo "Creating Fake Kernel Modules..."
        sudo cp /lib/modules/$UNAME /lib/modules/$1 -rfap &

        # Create a short animation
        spinner $!
    else

        # Warn user
        echo "This kernel exists... Skipping!"

    fi

else

    echo "USAGE: ./`basename $0` <kernel version>"
    echo "EXAMPLE: ./`basename $0` 4.4.0-31-generic"
fi

Answer 1