在文件中创建新文件系统

Posted 2021-02-26

Basic file system manipulation in Linux (some commands require sudo).

dd if=/dev/zero of=myfsys bs=512M count=1 # creating a 512M zeros file
mke2fs myfilesys # creating a file system out of the file
 
mount myfilesys /mnt -o loop=/dev/loop0 # mounting it as a loop device
 
mkdir /mnt/point1 # creating a mount point
mount /dev/loop0 /mnt/point1 # mounting 
 
df /mnt/point1/ # its alive!
 
# results with:
# Filesystem           1K-blocks      Used Available Use% Mounted on
# /dev/loop0              516040       400    489428   1% /mnt/point1