FSCK.EXT2(8) (NAME) fsck.ext2 - ext2 (SYNOPSIS) fsck.ext2 [ -pacnydfvktDFV ] [ -b ] [ -B _ ] [ -l|-L __ ] [ -C ] [ -E _ ] [ -z _ ] (DESCRIPTION) fsck.ext2 ext2 . e2fsck . ( /dev/sdc1) . fsck.ext2 () . -n -c -l -L . fsck.ext2 . fsck.ext2 <> () . . fsck.ext2 ( -y -n -p ) . <> <> <> Enter . Control-C fsck.ext2 . (OPTIONS) -a -p . -p . -b . . sparse_super . mke2fs -n mke2fs ( sparse_super ). fsck.ext2 . -B _ fsck.ext2 . . fsck.ext2 . fsck.ext2 . -c fsck.ext2 badblocks(8) (bad blocks) . . / . -C fsck.ext2 (file descriptor) . fsck.ext2 . SIGUSR1 fsck.ext2 . 0 fsck.ext2 . fsck.ext2 . -d ( fsck.ext2 ). -D . fsck.ext2 . -D fsck.ext2 -- . -D . . -D fsck.ext2 . -E _ fsck.ext2. ('=') . : ea_ver=__ (extended attribute) fsck.ext2 . . . journal_only . fragcheck (pass 1) . discard (discard / TRIM) ( SSD thin-provisioned ). . fsck.ext2 . nodiscard . discard . no_optimize_extents (extent tree) . /etc/e2fsck.conf . optimize_extents . /etc/e2fsck.conf . inode_count_fullmap (hard- linked). . . ( .) /etc/e2fsck.conf . no_inode_count_fullmap inode_count_fullmap. /etc/e2fsck.conf . readahead_kb ( ) (pre-fetch) fsck.ext2. ( ext4) / . . bmap2extent (block-mapped) (extent-mapped). fixes_only htree . -D -E bmap2extent . check_encoding (case-insensitive). strict . unshare_blocks (unshare) . . . (clone) . unshare_blocks -f . -n fsck.ext2 (deduplicate) . . -f (clean) . -F (buffer caches) . fsck.ext2 . -j _ (external-journal) . -k -c badblocks(8) . -l _ _ . badblocks(8) . badblocks(8) . -c fsck.ext2 badblocks . -L _ _. ( -l .) -n <> () . fsck.ext2 . -p -y . -p (<>) . fsck.ext2 . fsck.ext2 fsck.ext2 OR ( ). . -n -y . -r . -t fsck.ext2. (pass) . -v (verbose). -V . -y <> () fsck.ext2 . -n -p . -z _ (undo file) . e2undo(8) . _ fsck.ext2-.e2undo E2FSPROGS_UNDO_DIR . : (system crash) . (EXIT CODE) fsck.ext2 : 0 - 1 - 2 - (reboot) 4 - 8 - 16 - 32 - fsck.ext2 128 - (SIGNALS) fsck.ext2 : SIGUSR1 fsck.ext2 ( -C ). SIGUSR2 fsck.ext2 . (REPORTING BUGS) . fsck.ext2 fsck.ext2 . . fsck.ext2 . ( fsck.ext2 fsck.ext2 LC_ALL C fsck.ext2 .) script(1) fsck.ext2 . dumpe2fs(8) . fsck.ext2 debugfs(8) stat(1u) () . dump debugfs uuencode(1) . e2image(8) . e2image(8) . (version) fsck.ext2 . (ENVIRONMENT) E2FSCK_CONFIG ( e2fsck.conf(5) ). (AUTHOR) fsck.ext2 Theodore Ts'o . (SEE ALSO) e2fsck(8), e2fsck.conf(5), badblocks(8), dumpe2fs(8), debugfs(8), e2image(8), mke2fs(8), tune2fs(8) e2fsprogs FSCK.EXT2(8)