config BR2_TARGET_ROOTFS_EXT2 bool "ext2/3/4 root filesystem" select BR2_PACKAGE_HOST_E2FSPROGS help Build an ext2/3/4 root filesystem if BR2_TARGET_ROOTFS_EXT2 config BR2_TARGET_ROOTFS_EXT2_2 bool choice bool "ext2/3/4 variant" default BR2_TARGET_ROOTFS_EXT2_2r1 config BR2_TARGET_ROOTFS_EXT2_2r0 bool "ext2 (rev0)" select BR2_TARGET_ROOTFS_EXT2_2 config BR2_TARGET_ROOTFS_EXT2_2r1 bool "ext2 (rev1)" select BR2_TARGET_ROOTFS_EXT2_2 config BR2_TARGET_ROOTFS_EXT2_3 bool "ext3" config BR2_TARGET_ROOTFS_EXT2_4 bool "ext4" endchoice config BR2_TARGET_ROOTFS_EXT2_GEN int default 2 if BR2_TARGET_ROOTFS_EXT2_2 default 3 if BR2_TARGET_ROOTFS_EXT2_3 default 4 if BR2_TARGET_ROOTFS_EXT2_4 # All ext generations are revision 1, except ext2r0, which is revision 0 config BR2_TARGET_ROOTFS_EXT2_REV int default 0 if BR2_TARGET_ROOTFS_EXT2_2r0 default 1 if !BR2_TARGET_ROOTFS_EXT2_2r0 config BR2_TARGET_ROOTFS_EXT2_LABEL string "filesystem label" default "rootfs" config BR2_TARGET_ROOTFS_EXT2_SIZE string "exact size" default BR2_TARGET_ROOTFS_EXT2_BLOCKS if BR2_TARGET_ROOTFS_EXT2_BLOCKS_WRAP # legacy 2017.08 default "60M" help The size of the filesystem image. If it does not have a suffix, it is interpreted as power-of-two kilobytes. If it is suffixed by 'k', 'm', 'g', 't' (either upper-case or lower-case), then it is interpreted in power-of-two kilobytes, megabytes, gigabytes, terabytes, etc. config BR2_TARGET_ROOTFS_EXT2_INODES int "exact number of inodes (leave at 0 for auto calculation)" default 0 config BR2_TARGET_ROOTFS_EXT2_RESBLKS int "reserved blocks percentage" default 5 help The number of blocks on the filesystem (as a percentage of the total number of blocks), that are reserved for use by root. Traditionally, this has been 5%, and all ext-related tools still default to reserving 5% when creating a new ext filesystem. config BR2_TARGET_ROOTFS_EXT2_MKFS_OPTIONS string "additional mke2fs options" default "-O ^64bit" help Specify a space-separated list of mke2fs options, including any ext2/3/4 filesystem features. For more information about the mke2fs options, see the manual page mke2fs(8). For more information about the ext2/3/4 features which can be set, see the manual page ext4(5). The default is "-O ^64bit", i.e. disable 64-bit filesystem support. This default value has been chosen because U-Boot versions before 2017.02 don't support this filesystem option: using it may make the filesystem unreadable by U-Boot. choice prompt "Compression method" default BR2_TARGET_ROOTFS_EXT2_NONE help Select compressor for ext2/3/4 filesystem of the root filesystem config BR2_TARGET_ROOTFS_EXT2_NONE bool "no compression" help Do not compress the ext2/3/4 filesystem. config BR2_TARGET_ROOTFS_EXT2_GZIP bool "gzip" help Do compress the ext2/3/4 filesystem with gzip. config BR2_TARGET_ROOTFS_EXT2_BZIP2 bool "bzip2" help Do compress the ext2/3/4 filesystem with bzip2. config BR2_TARGET_ROOTFS_EXT2_LZ4 bool "lz4" help Do compress the ext2 filesystem with lz4. config BR2_TARGET_ROOTFS_EXT2_LZMA bool "lzma" help Do compress the ext2/3/4 filesystem with lzma. config BR2_TARGET_ROOTFS_EXT2_LZO bool "lzo" help Do compress the ext2 filesystem with lzop. config BR2_TARGET_ROOTFS_EXT2_XZ bool "xz" help Do compress the ext2 filesystem with xz. endchoice endif # BR2_TARGET_ROOTFS_EXT2