Changeset 3730 in MondoRescue

Timestamp:

Nov 16, 2019, 3:10:39 AM (5 years ago)

Author:

Bruno Cornec

Message:

Generate scripts to make and mount btrfs subvolumes

File:

• branches/3.3/mindi/mindi (modified) (2 diffs)

branches/3.3/mindi/mindi

@@ -1446 +1446 @@
     done
     LogAll "-----------------------------------" 
+
+    # Manages btrfs subvol partitions so they can be restored
+    # List looks like this
+    # ID 257 gen 20074 top level 5 path <FS_TREE>/@
+    # ID 260 gen 19927 top level 257 path @/home
+    # ID 261 gen 19927 top level 257 path @/opt
+    touch $MINDI_TMP/create-btrfs-subvol $MINDI_TMP/mount-btrfs-subvol
+    btrfs subvolume list -a / 2>/dev/null > $MINDI_TMP/btrfssubvol.txt
+    LogFile "btrfs subvolumes layout is:"
+    LogFile "---------------------------"
+    cat $MINDI_TMP/btrfssubvol.txt  >> $LOGFILE
+    LogFile "---------------------------"
+    grep -E 'btrfs[     ]+subvol=' /etc/fstab > $MINDI_TMP/btrfs-extract
+    LogFile "btrfs subvolumes referenced in fstab:"
+    LogFile "-------------------------------------"
+    cat $MINDI_TMP/btrfs-extract >> $LOGFILE
+    LogFile "-------------------------------------"
+    while read dev mp type opt dum dum; do 
+        echo $dev | grep -qE 'UUID|LABEL'
+        if [ $? -eq 0 ]; then
+            label=`echo $dev | cut -d= -f2`
+            device=`grep $label $mountlist | awk '{print $1}'`
+        else
+            device=$dev
+        fi
+        subvol=`echo $opt | cut -d@ -f2 | cut -d, -f1`
+        top=`grep -E "@$subvol$" $MINDI_TMP/btrfssubvol.txt | awk '{ print $7 }'`
+        btrfs=`grep -E "^ID $top " $MINDI_TMP/btrfssubvol.txt | awk '{ print $9 }' | sed 's/<FS_TREE>//' | sed 's/@$//'`
+        mountpoint="$btrfs$subvol"
+        echo "btrfs subvolume create $btrfs$subvol" >> $MINDI_TMP/create-btrfs-subvol
+        echo "mount -t btrfs -o subvol=$subvol $device $mountpoint" >> $MINDI_TMP/mount-btrfs-subvol
+    done <  $MINDI_TMP/btrfs-extract
+    rm -f  $MINDI_TMP/btrfs-extract
+    chmod 755 $MINDI_TMP/create-btrfs-subvol $MINDI_TMP/mount-btrfs-subvol
+    LogFile "Your create-btrfs-subvol file content is:"
+    LogFile "-----------------------------------------"
+    cat $MINDI_TMP/create-btrfs-subvol  >> $LOGFILE
+    LogFile "-----------------------------------------"
+    LogFile "Your mount-btrfs-subvol file content is:"
+    LogFile "-----------------------------------------"
+    cat $MINDI_TMP/mount-btrfs-subvol  >> $LOGFILE
+    LogFile "-----------------------------------------"
 }
 
@@ -2352 +2394 @@
     mkdir -p $bigdir/tmp
     cp -f $MINDI_TMP/mountlist.txt $bigdir/tmp/mountlist.txt 2>> $LOGFILE || Die "Cannot copy mountlist.txt from $MINDI_TMP to data disk"
+    cp -f $MINDI_TMP/create-btrfs-subvol $MINDI_TMP/mount-btrfs-subvol $bigdir/tmp/ 2>> $LOGFILE || Die "Cannot copy subvol scripts from $MINDI_TMP to data disk"
     if [ _"$MONDO_SHARE" != _"" ]; then
         cp -f $bigdir/tmp/mountlist.txt $MINDI_TMP/. 2>> $LOGFILE