Frequently Asked Questions (FAQ) ❓¶
Got questions? Here are the most common questions and practical answers about using fparted.
General Questions¶
What is fparted, and how is it different from other partition tools?¶
fparted is a full-featured partition and filesystem manager designed specifically for rooted Android devices and Linux. Unlike traditional PC tools like GParted that require booting from a live USB, or primitive Android root scripts that run unquoted shell commands in a terminal emulator, fparted brings a modern, touch-friendly Material You interface with genuine GNU/Linux storage engines directly to your device.
Is fparted safe to use on my internal phone storage?¶
Yes, but you must exercise caution. fparted automatically scans all attached storage (Internal Flash UFS/eMMC, MicroSD cards, USB OTG drives). While fparted has strict pre-flight checks and stages all changes in a virtual operations queue before execution, modifying internal OS partitions (/dev/block/bootdevice/*) can render your phone unbootable if you delete or shrink vital system partitions. We strongly recommend making a raw .img backup before modifying important partitions.
Can I format a MicroSD card or USB drive to ext4/Btrfs on Android?¶
Yes! Android's stock Settings app only allows formatting external storage to FAT32 or exFAT. With fparted, you can easily format any external drive or partition to ext4, F2FS, Btrfs, NTFS, XFS, or Linux Swap—perfect for Termux Linux chroots, dual-boot setups, or large file transfers.
Root & Permissions¶
Why does fparted require Superuser (Root) access?¶
Partitioning involves writing raw binary partition tables (GPT/MBR) directly to block devices (/dev/block/*), creating filesystems with mkfs, and resizing geometry with parted. Under Android's Linux security model, non-root applications run under an isolated sandbox (UID 10xxx) that has zero access to raw disk devices. Root permissions are mandatory to communicate with hardware controllers.
Why didn't I get a Superuser prompt with KernelSU or APatch?¶
In KernelSU (and forks like KernelSU-Next, SukiSU, ReSukiSU) and APatch, root authorization uses kernel-level isolation and profile-based whitelisting. Unlike Magisk, they do not pop up interactive request dialogs by default.
- Solution: Open your root manager app ➜ go to the Superuser tab ➜ find Partition Manager (vn.shadichy.parted) ➜ switch the toggle to Grant Superuser ➜ re-launch fparted.
Why does the app show an immutable "Exit" dialog when root is missing?¶
This is a fixed safety design invariant. If root is missing or unverified, running storage commands can lead to undefined behavior or silent corruption. Rather than allowing partial or broken functionality, fparted safely halts and lets you exit cleanly until root permissions are granted.
Partitions & Filesystems¶
Why is the "Resize" button disabled for FAT32 and exFAT?¶
Resizing a partition requires a two-step process: shrinking/expanding the partition container (via parted) and shrinking/expanding the underlying filesystem (via filesystem-specific tools like resize2fs or fatresize).
- For FAT12/16/32, dosfstools does not ship an approved, safe online/offline resize implementation.
- For exFAT, exfatprogs does not yet have a stabilized, verified shrink/grow utility in the verified toolchain.
- For ext4 and F2FS (growth), resizing is fully supported and enabled.
Can I undo an operation after clicking "Apply"?¶
- Before clicking Apply: You can undo or clear any pending operation in the Operations Queue at any time by tapping Undo (Ctrl + Z) or Clear All (Ctrl + Shift + Z).
- After clicking Apply: Once execution begins on raw flash memory, in-flight filesystem mutations cannot be safely interrupted without causing corruption.
fpartedexecutes operations sequentially and will halt immediately on the first error to protect subsequent partitions.
Why does Android only see the first partition on my multi-partition USB drive?¶
Stock Android's vold (Volume Daemon) automounter is traditionally configured to only mount the first recognizable partition on removable USB drives. The other partitions (e.g. your secondary ext4 or NTFS slice) are fully intact and accessible via root, Termux, or fparted, but may not appear in stock Android file manager apps without specialized root mount scripts.
Desktop & DeX Mode¶
Does fparted support keyboard shortcuts on Samsung DeX and tablets?¶
Yes! When connected to a physical keyboard or running in landscape mode on a tablet, Android-x86, or Samsung DeX, fparted provides a complete desktop experience with:
- Top-level menu bar (Alt mnemonics)
- Quick disk cycling (Ctrl + Tab)
- Direct disk selection (Alt + 1 .. 9)
- Formatting, checking, and table creation shortcuts
- Interactive keyboard shortcut customizer in Settings ➜ Keyboard Shortcuts