Extending the Root Partition without LVM. Extending EXT4 file system.
Therearethreestepstothis.Step1.Thepartitionmustfirstberesized.Ifyou'reusingLVM,it'seasy,andyoupresumablyknowhowtoproceed.,Afteryouresizeyourfilesystemwithresize2fs(thepartitionmustbeunmounted),lookattheoutputofthecommand:$resize2fs/dev/sdb124G .....。參考影片的文章的如下: