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Merge pull request #531 from xuweibj/T75933
Get_install_disk,Task 75933
This commit is contained in:
Xiaopeng Wang
commit
90af22e3e4
155
xCAT-server/share/xcat/install/scripts/getinstdisk
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155
xCAT-server/share/xcat/install/scripts/getinstdisk
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#!/bin/bash
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#-----------------------------------------------------------
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#
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# Get proper disk to install OS
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#
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# 1. Check all partitions list in /proc/partitions, whether
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# there is disk had OS installed. Select the one with the
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# smallest WWN.
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# 2. Check all disks list in /proc/partitions, sort them by
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# WWN and driver type, select the first one.
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# 3. Select the default one: /dev/sda.
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#
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# Output: /tmp/install_disk
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#
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#-----------------------------------------------------------
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install_disk=""
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rm /tmp/install_disk
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# Check if any disk have installed OS
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if [ -z "$install_disk" ]; then
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entries=$(awk -F ' ' '{print $4}' /proc/partitions | grep -v "name")
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for entry in $entries; do
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dev_type=$(udevadm info --query=property --name=/dev/$entry | grep -i "DEVTYPE" | awk -F = '{print $2}' | tr A-Z a-z)
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if [ "$dev_type" == "disk" ]; then
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disks=$disks"$entry"
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elif [ "$dev_type" == "partition" ]; then
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partitions=$partitions"$entry"
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fi
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done
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for partition in $partitions; do
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echo Check the partition $partition >> /tmp/getinstalldisk_log
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if [ -e "/tmp/tmp_${partition%%[0-9]*}" ]; then
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echo The disk had OS installed, check next partition. >> /tmp/getinstalldisk_log
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continue
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fi
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mkdir -p /tmp/mymount;
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fs_type=$(udevadm info --query=property --name=/dev/$partition | grep -i "FS_TYPE" | awk -F = '{print $2}')
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rc=255
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# mount partition based on fs type, if fs_type is swap, do not mount it, jump to next partition.
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if [ -z "$fs_type" ]; then
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mount /dev/$partition /tmp/mymount
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rc=$?
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elif [ "$fs_type" != "swap" ]; then
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mount -t $fs_type /dev/$partition /tmp/mymount
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rc=$?
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fi
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if [ $rc -eq 0 ]; then
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ker_dir="/tmp/mymount"
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if [ -d /tmp/mymount/boot ]; then
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ker_dir="/tmp/mymount/boot"
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fi
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for i in $ker_dir/vmlinuz*; do
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disk_part=${partition%%[0-9]*}
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disk_wwn=$(udevadm info --query=property --name=$disk_part | grep '\<ID_WWN\>' | cut -d "=" -f2 | tr A-Z a-z)
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disk_array=$disk_array"$disk_part $disk_wwn\n"
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touch /tmp/tmp_$disk_part
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break
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done
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echo -e The partition $partition has kernel file. >> /tmp/getinstalldisk_log
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umount /tmp/mymount || echo $partition umount failed. >> /tmp/getinstalldisk_log
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else
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echo Partition $partition mount failed or the partition is swap. >> /tmp/getinstalldisk_log
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fi
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done
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if [ "$disk_array" ]; then
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echo -e The disk_array: >> /tmp/getinstalldisk_log
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echo -e $disk_array >> /tmp/getinstalldisk_log
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install_disk=/dev/$(echo -e $disk_array | grep -v "^$" | sort -t : -k 2 -b | cut -d " " -f1 | head -n 1)
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echo -e The install_disk is $install_disk. >> /tmp/getinstalldisk_log
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fi
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rm -f /tmp/tmp_*;
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rmdir /tmp/mymount;
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fi
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# Sort all disks based on their WWN and driver type, choose the first one
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if [ -z "$install_disk" ]; then
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rm -f /tmp/tmp_*;
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for disk in $disks; do
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disk_wwn=$(udevadm info --query=property --name=$disk | grep '\<ID_WWN\>' | cut -d "=" -f2 | tr A-Z a-z)
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if [ "$disk_wwn" ]; then
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disk_driver=$(udevadm info --attribute-walk --name=$disk | grep DRIVERS| grep -v '""'| grep -v '"sd"'| head -n 1| sed -e 's/[^"]*"//' -e 's/"//' | tr A-Z a-z)
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echo -e The disk $disk information: disk_wwn=$disk_wwn disk_driver=$disk_driver. >> /tmp/getinstalldisk_log
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case "$disk_driver" in
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"ata_piix4"|"PMC MaxRAID"|"ahci"|"megaraid_sas")
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echo "$disk $disk_wwn" >> /tmp/tmp_firstdisks
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echo "Add disk:" $disk $driver $disk_wwn " into firstdisks" >> tmp/tmp/getinstalldisk_log
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;;
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"mptsas"|"mpt2sas"|"mpt3sas")
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echo "$disk $disk_wwn" >> /tmp/tmp_seconddisks
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echo "Add disk:" $disk $driver $disk_wwn " into seconddisks" >> tmp/tmp/getinstalldisk_log
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;;
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*)
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echo "$disk $disk_wwn" >> /tmp/tmp_thirddisks
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echo "Add disk:" $disk $driver $disk_wwn " into thirddisks" >> tmp/tmp/getinstalldisk_log
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;;
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esac
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fi
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done
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for seq in first second third; do
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if [ -s /tmp/tmp_${seq}disks ]; then
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install_file="/tmp/tmp_${seq}disks"
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break
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fi
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done
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if [ "$install_file" ] && [ -s $install_file ]; then
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install_disk=/dev/$(cat $install_file | grep -v "^$" | sort -t : -k 2 -b | cut -d " " -f1 | head -n 1)
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echo -e The install_disk is $install_disk by sorting WWN and DRIVER. >> /tmp/getinstalldisk_log
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rm -f /tmp/tmp_*;
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fi
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fi
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# Cannot find proper disk for OS install, select the default one "/dev/sda"
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if [ -z "$install_disk" ]; then
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install_disk="/dev/sda"
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echo -e The default install_disk is $install_disk. >> /tmp/getinstalldisk_log
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fi
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# Output the result to /tmp/install_disk file
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echo $install_disk > /tmp/install_disk
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