What is a .SQUASHFS file?
SquashFS is a compressed, read-only Linux filesystem, used in live CDs and routers.
- Did you know
- SquashFS squeezes a whole read-only filesystem down, ideal for Linux live images.
- SquashFS was created by Phillip Lougher in 2002 and merged into the mainline Linux kernel with version 2.6.29.
- It compresses files, inodes and directories, supporting block sizes up to a megabyte for tighter packing.
- What Analyser reads
- Inspect virtual-machine descriptors (VMware .vmx, VirtualBox .vbox, OVF/OVA), disc images (Nero .nrg, Alcohol .mds/.mdf, CloneCD), embedded firmware (Intel HEX, Motorola S-record, UF2, ELF/AXF, Device Tree Blobs, U-Boot uImage), partition tables (MBR/GPT with GUIDs), Linux filesystem superblocks (ext2/3/4, SquashFS, cramfs, romfs) and Windows imaging (WIM/ESD) - reading headers directly, no upload.
- Depth of analysis
- .SQUASHFS is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .SQUASHFS file
- Drag a .SQUASHFS file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.