mirror of
https://github.com/xcat2/xcat-core.git
synced 2025-05-30 09:36:41 +00:00
237 lines
8.0 KiB
Bash
237 lines
8.0 KiB
Bash
#!/bin/sh
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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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tmpdir="/tmp/xcat.getinstalldisk"
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mkdir -p $tmpdir
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has_awk=$(find / -name "awk")
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logfile="/tmp/xcat_getinstalldisk_log"
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tmpfile=$tmpdir"/getinstalldisk_"
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# Check if any disk have installed OS
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if [ -z "$install_disk" ]; then
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if [ -z "$has_awk" ]; then
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entries=$(cat /proc/partitions | sed 's/ */ /g' | cut -d " " -f5 | grep -v "name" | grep -e "[s|h]d.*$")
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else
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entries=$(awk -F ' ' '{print $4}' /proc/partitions | grep -v "name" | grep -e "[s|h]d.*$")
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fi
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for entry in $entries; do
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if [ -z "$has_awk" ]; then
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dev_type=$(udevadm info --query=property --name=/dev/$entry | grep -i "DEVTYPE" | cut -d "=" -f2 | tr A-Z a-z)
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else
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dev_type=$(udevadm info --query=property --name=/dev/$entry | grep -i "DEVTYPE" | awk -F = '{print $2}' | tr A-Z a-z)
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fi
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if [ "$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" $entry"
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fi
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done
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mount_dir=$tmpdir"/xcat.getinstalldisk.mount"
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mkdir -p $mount_dir;
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for partition in $partitions; do
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echo "Check the partition $partition." >> $logfile
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if [ -e "$tmpfile${partition%%[0-9]*}" ]; then
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echo " The disk ${partition%%[0-9]*} had OS installed, check next partition." >> $logfile
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continue
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fi
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if [ -z "$has_awk" ]; then
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fs_type=$(udevadm info --query=property --name=/dev/$partition | grep -i "FS_TYPE" | cut -d "=" -f2)
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else
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fs_type=$(udevadm info --query=property --name=/dev/$partition | grep -i "FS_TYPE" | awk -F = '{print $2}')
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fi
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rc=255
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# mount partition based on fs type, if fs_type is swap, do not mount it, jump to next partition.
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if [ -z "$fs_type" ]; then
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mount /dev/$partition $mount_dir
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rc=$?
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elif [ "$fs_type" != "swap" ]; then
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mount -t $fs_type /dev/$partition $mount_dir
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rc=$?
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fi
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if [ $rc -eq 0 ]; then
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has_kernel=0
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has_wwn=0
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has_path=0
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echo " Partition $partition mount success." >> $logfile
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ker_dir=$mount_dir
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if [ -d "$mount_dir/boot" ]; then
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ker_dir="$mount_dir/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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touch "$tmpfile$disk_part"
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echo -e " The partition $partition has kernel file." >> $logfile
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has_kernel=1
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break
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done
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if [ $has_kernel -eq 1 ]; then
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disk_info=$(udevadm info --query=property --name=$disk_part)
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disk_wwn=$(IFS= ;echo $disk_info | grep '\<ID_WWN\>' | cut -d "=" -f2 | tr A-Z a-z)
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disk_path=$(IFS= ;echo $disk_info | grep DEVPATH | cut -d "=" -f2 | tr A-Z a-z)
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if [ "$disk_wwn" ]; then
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has_wwn=1
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disk_array_wwn=$disk_array_wwn"$disk_part $disk_wwn\n"
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echo " The disk $disk_part has wwn information $disk_wwn." >> $logfile
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elif [ "$disk_path" ]; then
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has_path=1
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disk_array_path=$disk_array_path"$disk_part $disk_path\n"
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echo " The disk $disk_part has path information $disk_path." >> $logfile
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else
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disk_array_other=$disk_array_other"$disk_part\n"
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echo " The disk $disk_part has no wwn and path information." >> $logfile
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fi
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else
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echo " The partition $partition does not have kernel file." >> $logfile
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fi
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umount $mount_dir || echo " $partition umount failed." >> $logfile
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else
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echo " Partition $partition mount failed or the partition is swap." >> $logfile
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fi
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done
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if [ $has_wwn -eq 1 ]; then
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disk_array=$disk_array_wwn
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elif [ $has_path -eq 1 ]; then
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disk_array=$disk_array_path
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else
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disk_array=$disk_array_other
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fi
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if [ "$disk_array" ]; then
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echo -e "The disk_array:" >> $logfile
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echo -e " $disk_array" >> $logfile
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install_disk=/dev/$(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." >> $logfile
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fi
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rmdir $mount_dir;
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rm $tmpfile*;
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fi
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# Sort all disks based on their WWN and driver type, choose the first one
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if [ -z "$install_disk" ]; then
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for disk in $disks; do
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disk_info=$(udevadm info --query=property --name=$disk)
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disk_wwn=$(IFS= ;echo $disk_info | grep '\<ID_WWN\>' | cut -d "=" -f2 | tr A-Z a-z)
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disk_path=$(IFS= ;echo $disk_info | grep DEVPATH | cut -d "=" -f2 | tr A-Z a-z)
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disk_driver=$(udevadm info --attribute-walk --name=$disk | grep DRIVERS| grep -v '""'| grep -v '"sd"'|
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\head -n 1| sed -e 's/[^"]*"//' -e 's/"//' | tr A-Z a-z)
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echo "The disk $disk information: disk_wwn=$disk_wwn disk_path=$disk_path disk_driver=$disk_driver." >> $logfile
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if [ "$disk_wwn" ]; then
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has_wwn=1
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file_pre="wwn"
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disk_data=$disk_wwn
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elif [ $has_wwn -eq 1 ]; then
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echo "The disk $disk has no wwn info." >> $logfile
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echo "There is other disk has wwn info, so don't record this disk." >> $logfile
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continue;
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elif [ "$disk_path" ]; then
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has_path=1
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file_pre="path"
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disk_data=$disk_path
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elif [ $has_path -eq 1 ]; then
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echo "The disk $disk has no wwn or path info." >> $logfile
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echo "There is other disk has path info, so don't record this disk." >> $logfile
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continue;
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else
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file_pre="other"
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disk_data=""
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fi
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case "$disk_driver" in
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"ata_piix4"|"PMC MaxRAID"|"ahci"|"megaraid_sas")
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echo "$disk $disk_data" >> "$tmpfile""$file_pre""firchodisks"
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echo " Add disk: $disk $disk_data $driver into $file_pre firchodisks" >> $logfile
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;;
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"mptsas"|"mpt2sas"|"mpt3sas")
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echo "$disk $disk_data" >> "$tmpfile""$file_pre""secchodisks"
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echo " Add disk: $disk $disk_data $driver into $file_pre secchodisks" >> $logfile
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;;
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*)
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echo "$disk $disk_data" >> "$tmpfile""$file_pre""thichodisks"
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echo " Add disk: $disk $disk_data $driver into $file_pre thichodisks" >> $logfile
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;;
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esac
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done
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for seq in fir sec thi; do
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if [ -s $tmpfile$file_pre${seq}chodisks ]; then
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install_file="$tmpfile$file_pre${seq}chodisks"
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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 $file_pre and DRIVER." >> $logfile
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fi
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rm $tmpfile*;
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fi
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rm -rf $tmpdir;
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# Cannot find proper disk for OS install, select the default one "/dev/sda"
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if [ -z "$install_disk" ]; then
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install_disk="/dev/sda"
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echo -e "The default install_disk is $install_disk." >> $logfile
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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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