Enable the block layer
modulename: elevator.ko
and/orcheck.ko
configname: CONFIG_BLOCK
Linux Kernel Configuration
└─>Enable the block layer
In linux kernel since version 2.6.19 (release Date: 2006-11-29)
This permits the block layer to be removed from the kernel if it's not
needed (on some embedded devices for example). If this option is
disabled, then blockdev files will become unusable and some
filesystems (such as ext3) will become unavailable.
This option will also disable SCSI character devices and USB storage
since they make use of various block layer definitions and
facilities.
Say Y here unless you know you really don't want to mount disks and
suchlike.
needed (on some embedded devices for example). If this option is
disabled, then blockdev files will become unusable and some
filesystems (such as ext3) will become unavailable.
This option will also disable SCSI character devices and USB storage
since they make use of various block layer definitions and
facilities.
Say Y here unless you know you really don't want to mount disks and
suchlike.
source code:
is selected by
CONFIG_BLK_DEV_IO_TRACECONFIG_MTD_BLOCK
CONFIG_MTD_BLOCK_RO
CONFIG_FTL
CONFIG_NFTL
CONFIG_INFTL
CONFIG_RFD_FTL
CONFIG_SSFDC
CONFIG_BLK_DEV_CRYPTOLOOP
CONFIG_BLK_DEV_SGIIOC4
CONFIG_BLK_DEV_IDEDMA_PMAC
CONFIG_ATA
CONFIG_DM_CRYPT
CONFIG_EXT2_FS_POSIX_ACL
CONFIG_EXT3_FS
CONFIG_EXT3_FS_POSIX_ACL
CONFIG_EXT4DEV_FS
CONFIG_EXT4DEV_FS_POSIX_ACL
CONFIG_REISERFS_FS_POSIX_ACL
CONFIG_JFS_FS
CONFIG_JFS_POSIX_ACL
CONFIG_GFS2_FS
CONFIG_GFS2_FS_LOCKING_DLM
CONFIG_OCFS2_FS
CONFIG_JOLIET
CONFIG_ZISOFS
CONFIG_FAT_FS
CONFIG_MSDOS_FS
CONFIG_VFAT_FS
CONFIG_NTFS_FS
CONFIG_HFS_FS
CONFIG_HFSPLUS_FS
CONFIG_BEFS_FS
CONFIG_CRAMFS
CONFIG_EFI_PARTITION