Goi*_*Off 8 linux centos kickstart
环境：CentOS 5.5 和 6.4
我要求在安装前分析硬件，以确保我们的客户不会在不合标准的服务器硬件上安装我们的软件。例如，检查内存、磁盘空间、CPU、网卡……那么，我的 ks.cfg 文件中的 %pre 部分似乎是执行此操作的最佳位置？？？但是，我无法获得像 free to work 这样的命令...。我想找出 %pre 部分中可用的命令，这是在安装开始前执行硬件分析的正确位置吗？？？。 . 如果 ks.cfg 的 %pre 部分不是执行此操作的好地方，那么在哪里？这是我迄今为止尝试过的，但没有输出：
ks.cfg：
%pre
(echo "Analyzing Hardware...") >/dev/tty1
free >/dev/tty1
free_txt=`free -o`
(echo "$free_txt") >/dev/tty1
%end
在安装的第一部分，我在屏幕上看到“分析硬件...”，但之后什么都没有.....
wwo*_*ods 13
%prekickstart的部分在安装程序环境中运行。
以下是 RHEL6.5 安装程序环境中可用的有用命令列表：
arch awk basename bash cat chattr chgrp chmod chown chroot clear clock consoletype cp cut date df dmesg du echo egrep env expr false fgrep find getopt grep head hwclock id kill killall killall5 less ln ls lsattr mkdir mknod mktemp mv pidof ps pwd readlink rm rmdir sed sh shred sleep sort split sync tac tail tee top touch true tty uname uniq wc which xargsless more vimd5sum sha1sum sha256sumgzip bzip2 cpio dd tar rpmfsck/mkfs的/ etc。为了ext2 ext3 ext4 xfs btrfs msdos vfatmkswap swapon swapoff dmraid dmsetup mdadm mdmon dump restore mt lvm lvs vgs pvs ...arp arping curl dhclient dhclient-script ftp ifconfig hostname ip ipcalc mtr nc ping rcp rdate rlogin telnet nslookup ntpdate route rsh rsync ssh ssh-keygen sshd scp sftp wgetbiosdevname blkdeactivate blkid blockdev dmidecode lshal lspci lsscsi sginfo smartctleject dump restore hdparm smartctl losetup kpartx parted fdisk sfdiskchvt consolehelper openvt whiptail zenitylogger rsyslogd syslogdpython如果您运行手动安装，您可以切换到 VT2 ( CtrlAltF2)上的终端并四处寻找安装程序环境中可用的所有内容。compgen -c | sort -u是列出每个可用命令的简单方法，并且可以在/sys和 中找到许多系统信息/proc。
（是的，在%pre脚本运行后重新解析 kickstart ，因此您%pre可以编辑 kickstart 和/或生成新的 kickstart 片段以用于%include.）
经过更多挖掘后，我发现大量系统信息/proc可供在执行%pre中的部分时查看ks.cfg。检查 dmidecode 和 /proc 中的文件以获取您需要的所有信息。这对我有用：
%pre --log=/tmp/ks_pre.log
#!/bin/sh
#----------------------------------------------
# echos message to console screen and a log file
#----------------------------------------------
echo_screen_n_log() {
msg=$1
# Send to console screen
(echo "$msg") >/dev/tty1
# Send to log
echo "$msg"
}
echo_screen_n_log ""
echo_screen_n_log "Analyzing Hardware..."
echo_screen_n_log ""
#----------------------------------------------
# System Memory
#----------------------------------------------
IFS=$'\n'
mem_info=(`dmidecode --type memory`)
unset IFS
sys_mem_sizes=""
sys_mem_banks=""
sys_tot_mem=0
cntr=0
bank_cntr=0
for i in "${mem_info[@]}"
do
# echo_screen_n_log "i: $i"
# Maximum system memory that can be placed on the motherboard
REG_EX="Maximum Capacity: (.*)$"
if [[ $i =~ $REG_EX ]]
then
sys_mem_max=${BASH_REMATCH[1]}
fi
# How many memory slots are on the motherboard
REG_EX="Number Of Devices: (.*)$"
if [[ $i =~ $REG_EX ]]
then
sys_mem_slots=${BASH_REMATCH[1]}
fi
REG_EX="^[[:space:]]+Size: (.*)$"
if [[ $i =~ $REG_EX ]]
then
sys_mem_sizes[cntr]=${BASH_REMATCH[1]}
cntr=$(( $cntr + 1 ))
fi
REG_EX="^[[:space:]]+Bank Locator: (.*)$"
if [[ $i =~ $REG_EX ]]
then
sys_mem_banks[bank_cntr]=${BASH_REMATCH[1]}
bank_cntr=$(( $bank_cntr + 1 ))
fi
done
cntr=$(( $cntr - 1 ))
echo_screen_n_log "Max system memory: $sys_mem_max"
echo_screen_n_log "Total system slots: $sys_mem_slots"
i=0
while [ $i -le $cntr ]
do
echo_screen_n_log "Memory Bank Location ${sys_mem_banks[$i]} : ${sys_mem_sizes[$i]}"
REG_EX="No Module Installed$"
if [[ ! ${sys_mem_sizes[$i]} =~ $REG_EX ]]
then
REG_EX="^([0-9]+) [A-Z][A-Z]$"
if [[ ${sys_mem_sizes[$i]} =~ $REG_EX ]]
then
sys_tot_mem=$(( $sys_tot_mem + ${BASH_REMATCH[1]} ))
fi
fi
i=$(( $i + 1 ))
done
echo_screen_n_log "System Total Memory: $sys_tot_mem MB"
#--------------------------------------------
# Get Disk size information
#--------------------------------------------
IFS=$'\n'
disk_info=(`cat /proc/partitions`)
unset IFS
total_disk_space=0
type=""
# Grab from minor column starting with 0 ending in 3 letters (drive node)
REG_EX="0\s+([0-9]+) [a-z][a-z][a-z]$"
for i in "${disk_info[@]}"
do
# echo_screen_n_log "i: $i"
if [[ $i =~ $REG_EX ]]
then
total_disk_space=${BASH_REMATCH[1]}
total_disk_space=$(( $total_disk_space * 1024 ))
type="GB"
div_num=1000000000
if [ "$total_disk_space" -lt $div_num ]
then
type="MB"
div_num=1000000
fi
total_disk_space=$(( $total_disk_space / $div_num ))
fi
done
echo_screen_n_log "Disk Space: $total_disk_space $type"
#-----------------------------------------------------
# Get CPU model name
#-----------------------------------------------------
cpu_grep=`grep 'model name' /proc/cpuinfo`
cpu_model_nm="Not Found!"
REG_EX="^.*: (.*)$"
if [[ $cpu_grep =~ $REG_EX ]]
then
cpu_model_nm=${BASH_REMATCH[1]}
fi
echo_screen_n_log "CPU Model: $cpu_model_nm"
#-------------------------------------------------------
# Get number of physical CPUs
#-------------------------------------------------------
IFS=$'\n'
cpu_count=(`grep "physical id" /proc/cpuinfo`)
unset IFS
last_cpu_id=""
total_cpu_cnt=0
# Add up all cores of the CPU to get total MIPS
total_cpus=0
REG_EX="^physical id\s+: ([0-9]+)$"
for i in "${cpu_count[@]}"
do
# echo_screen_n_log "i: $i"
if [[ $i =~ $REG_EX ]]
then
cpu_id=${BASH_REMATCH[1]}
if [ ! "$last_cpu_id" = "$cpu_id" ]
then
total_cpu_cnt=$(( $total_cpu_cnt + 1 ))
last_cpu_id=$cpu_id
fi
fi
done
echo_screen_n_log "System physical CPUs: $total_cpu_cnt"
#-------------------------------------------------------
# Get number of CPU cores
#-------------------------------------------------------
IFS=$'\n'
cpu_cores=(`grep -m 1 "cpu cores" /proc/cpuinfo`)
unset IFS
total_cpu_cores=0
REG_EX="^cpu cores\s+: ([0-9]+)$"
for i in "${cpu_cores[@]}"
do
# echo_screen_n_log "i: $i"
if [[ $i =~ $REG_EX ]]
then
total_cpu_cores=${BASH_REMATCH[1]}
fi
done
echo_screen_n_log "CPU cores: $total_cpu_cores"
#-------------------------------------------------------
# CPU MHz
#-------------------------------------------------------
IFS=$'\n'
dmi_cpu_MHz=(`dmidecode --string processor-frequency`)
unset IFS
cpu_MHz=0
REG_EX="^[0-9]+ "
for i in "${dmi_cpu_MHz[@]}"
do
# echo_screen_n_log "i: $i"
if [[ $i =~ $REG_EX ]]
then
cpu_MHz=${BASH_REMATCH[1]}
fi
done
echo_screen_n_log "CPU MHz: ${dmi_cpu_MHz:0:1}.${dmi_cpu_MHz:1:$(( ${#dmi_cpu_MHz} - 1 ))}"
#-------------------------------------------------------
# Get CPU bogomips (Millions of instructions per second)
#-------------------------------------------------------
IFS=$'\n'
cpu_mips=(`grep "bogomips" /proc/cpuinfo`)
unset IFS
# Add up all cores of the CPU to get total MIPS
total_mips=0
REG_EX="\s([0-9]+)\..*$"
for i in "${cpu_mips[@]}"
do
# echo_screen_n_log "i: $i"
if [[ $i =~ $REG_EX ]]
then
cpu_bogomips=${BASH_REMATCH[1]}
total_mips=$(( $total_mips + $cpu_bogomips ))
fi
done
echo_screen_n_log "Total CPU MIPS (Millions of instructions per second) : $total_mips"
echo_screen_n_log ""
(echo -n "Press <enter> to continue..") >/dev/tty1
read text
%end
我只需要添加标准来确定我们安装的基本系统应该是什么样子，我就完成了......
使用更多信息更新了此内容...您还可以在 %pre 部分中对磁盘信息执行以下操作：
IFS=$'\n'
parted_txt=(`parted -l`)
unset IFS
for i in "${parted_txt[@]}"
do
# (echo "i: \"$i\"") >/dev/tty1
REG_EX="^Model: (.*)$"
if [[ $i =~ $REG_EX ]]
then
disk_model=${BASH_REMATCH[1]}
# (echo "Disk Model: \"$disk_model\"") >/dev/tty1
fi
REG_EX="^Disk (.*): ([0-9]+).[0-9]([A-Z][A-Z])$"
if [[ $i =~ $REG_EX ]]
then
disk_device=${BASH_REMATCH[1]}
disk_capacity=${BASH_REMATCH[2]}
disk_capacity_type=${BASH_REMATCH[3]}
(echo "Device: \"$disk_device\" \"$disk_capacity\" $disk_capacity_type") >/dev/tty1
IFS=$'\n'
disk_txt=(`udevadm info --query=all --name=$disk_device`)
unset IFS
is_USB_drive=0
for j in "${disk_txt[@]}"
do
#(echo "j: \"$j\"") >/dev/tty1
REG_EX="^ID_BUS=usb$"
if [[ $j =~ $REG_EX ]]
then
# USB keys are not to be included in total disk space
# (echo "$disk_device is a USB drive!") >/dev/tty1
is_USB_drive=1
fi
done
if [ "$is_USB_drive" = "0" ]
then
total_capacity=$(( $total_capacity + $disk_capacity ))
fi
fi
done
(echo "Disk Model: $disk_model") >/dev/tty1
(echo "Disk $disk_device Capacity: $total_capacity $disk_capacity_type") >/dev/tty1
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