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Using the mount Command in the ChromeOS Linux Environment

The mount command in Linux is used to attach file systems to a specified mount point. In the ChromeOS Linux (Crostini) environment, mount can be used to mount disk images and ramdisks, but it cannot be used to mount external flash drives or other media.

Basic Usage

Listing Mounted File Systems

To view currently mounted file systems, use:

mount

or:

findmnt

Mounting a Disk Image

To mount a disk image (e.g., an ISO file) to a directory:

sudo mount -o loop disk_image.iso /mnt/mountpoint

To unmount it:

sudo umount /mnt/mountpoint

Mounting a Ramdisk

To create and mount a ramdisk:

sudo mount -t tmpfs -o size=500M tmpfs /mnt/ramdisk

This creates a 500MB temporary file system stored in RAM.

To unmount the ramdisk:

sudo umount /mnt/ramdisk

Checking Available File Systems

To check which file systems are supported:

cat /proc/filesystems

Practical Use Cases

  • Mounting ISO images for software installation: 
    sudo mount -o loop ubuntu.iso /mnt/iso
  • Creating a temporary high-speed storage space in RAM: 
    sudo mount -t tmpfs -o size=1G tmpfs /mnt/temp
  • Viewing existing mount points for troubleshooting: 
    findmnt

Conclusion

The mount command in ChromeOS Linux is primarily useful for mounting disk images and ramdisks. While it does not support external media in Crostini, it remains an essential tool for managing virtual file systems and temporary storage solutions.