/[smeserver]/cdrom.image/updates/raidconvert
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Revision 1.1 by growell, Fri Sep 16 22:11:45 2005 UTC Revision 1.6.2.1 by slords, Sat Mar 15 18:11:42 2008 UTC
# Line 1  Line 1 
1  #!/bin/sh  #!/bin/sh
 set -x  
   
 # exec 2>&1 >/tmp/raidconvert.out  
2    
3    set -x
4  exec 2>&1  exec 2>&1
5    
6  # let's assume it's a SCSI system  device=$(sed -n 's|.*[0-9]\s\+\([^ ]\+[^0-9]\)$|\1|p;s#.*[0-9]\s\+\(\(rd\|ida\|cciss\|i2o\)/.*[^0-9p][0-9]\+\)$#\1#p' /proc/partitions | head -1)
7  if grep -q 'sda$' /proc/partitions; then  
8      disk=sda  if [ -n "$device" ]
9  else  then
10      # No SCSI Drives is must be IDE      sfdisk -d /dev/$device > /tmp/oldparts
11      media=`cat /proc/ide/hda/media`      sed 's/Id=8[32]/Id=fd/' /tmp/oldparts > /tmp/newparts
12      if [ $media == "disk" ] ; then  
13          disk=hda      mkdir -p /mnt/tmp
14      fi      for part in $(awk '/^\/dev\/.*Id=8[23]/{ print $1 }' /tmp/oldparts)
15  fi      do
16            md=/dev/md$(echo $part | sed 's|^.*[^0-9]||')
17    
18            if grep -q "^$part .*Id=83" /tmp/oldparts
19            then
20                e2fsck -f -C0 $part
21                partsize=$(resize2fs -f $part 2>&1| sed -n 's|.* \([0-9]\+\) blocks long.*|\1|p')
22                resize2fs -fp $part $(($partsize-72))
23            fi
24    
25            mdadm -C $md -l 1 -n 2 -R $part missing
26    
27            if grep -q "^$part .*Id=83" /tmp/oldparts
28            then
29                e2fsck -f -C0 $md
30                resize2fs -fp $md
31    
32                mount $md /mnt/tmp
33                [ -r /mnt/tmp/etc/fstab ] && sed -i "s|/dev/$device\([0-9]\+\)|/dev/md\1|" /mnt/tmp/etc/fstab
34                umount /mnt/tmp
35    
36    
37            elif grep -q "^$part .*Id=82" /tmp/oldparts
38            then
39                mkswap $md
40            fi
41        done
42        rmdir /mnt/tmp
43    
44  set $disk      mdadm --stop --scan
45  found=`echo $#`      sfdisk --force /dev/$device < /tmp/newparts
 if [ $found -gt "0" ] ; then  
     # Dump out current partitions  
     sfdisk -d /dev/$disk > /tmp/oldparts  
   
     # Check if we have any ext2/3 or swap partitions  
     if grep -q 'Id=8[23]' /tmp/oldparts; then  
         echo -en "\n\nConverting partitions to RAID..." >/dev/tty3  
         # Convert ext2/3 and swap partitions to raid autodetect  
         sed 's/Id=8[32]/Id=fd/' /tmp/oldparts > /tmp/newparts  
   
         # Find swap partition for future checks  
         swap=`grep 'Id=82' /tmp/oldparts | sed "s/$disk\([0-9]\+\) :.*/md\1/"`  
   
         # Loop throught partitions and convert to degraded raid1  
         for part in `grep 'Id=8[23]' /tmp/oldparts | sed 's/ :.*//'`; do  
             mdpart=`echo $part | sed "s/$disk\([0-9]\+\)/md\1/"`  
           
             echo -n "$part..." >/dev/tty3  
             mdadm --create $mdpart --run --level=1 --raid-devices=2 $part missing  
             if [ "$mdpart" == "$swap" ]; then  
                 # Recreate swap partition  
                 mkswap $swap  
             else  
                 # Resize ext2/3 partitions (fix superblock - part 1)  
                 resize2fs -f $mdpart  
             fi  
         done  
   
         echo "done" >/dev/tty3  
   
         # Write out new converted partition table  
         sfdisk --force /dev/$disk < /tmp/newparts  
   
         echo -e "\nChecking filesystems on converted partitions. This may take a while." >/dev/tty3  
   
         mkdir /mnt/tmp  
         for part in `grep 'Id=fd' /tmp/newparts | sed "s/$disk\([0-9]\+\) :.*/md\1/"`; do  
             if [ "$part" != "$swap" ]; then  
                 # Resize ext2/3 partitions (fix superblock - part 2)  
                 echo -e "\n\nChecking $part..." >/dev/tty3  
                 e2fsck -f -C0 $part >/dev/tty3  
   
                 # Check for /etc/fstab on partitions and convert entries  
                 mount $part /mnt/tmp  
                 if [ -r /mnt/tmp/etc/fstab ]; then  
                     cat /mnt/tmp/etc/fstab | sed "s/$disk\([0-9]\+\)/md\1/" > /mnt/tmp/etc/fstab.tmp  
                     mv /mnt/tmp/etc/fstab.tmp /mnt/tmp/etc/fstab  
                 fi  
                 umount /mnt/tmp  
             fi  
         done  
         rmdir /mnt/tmp  
         mdadm --stop --scan  
     fi  
46  fi  fi


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