config FS_EROFS bool "Enable EROFS filesystem support" help This provides support for reading images from EROFS filesystem. EROFS (Enhanced Read-Only File System) is a lightweight read-only file system for scenarios which need high-performance read-only requirements. It also provides fixed-sized output compression support, which improves storage density, keeps relatively higher compression ratios, which is more useful to achieve high performance for embedded devices with limited memory. config FS_EROFS_ZIP bool "EROFS Data Compression Support" depends on FS_EROFS select LZ4 default y help Enable fixed-sized output compression for EROFS. If you don't want to enable compression feature, say N.