Centos7
如何使用 /etc/export.d/？
如何使用
/etc/export.d/導出文件系統？我正在嘗試通過 nfs 導出 sge 單元的配置。但是，導出似乎不起作用。
# cat /etc/exports.d/sge-example.com /opt/sge/example.com 192.0.2.0/24(ro) # exportfs -rv exportfs: No file systems exported! # strace exportfs -rv 2>&1 execve("/usr/sbin/exportfs", ["exportfs", "-rv"], [/* 27 vars */]) = 0 brk(NULL) = 0x55d9bfde2000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb67e9e0000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=28419, ...}) = 0 mmap(NULL, 28419, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb67e9d9000 close(3) = 0 open("/lib64/libwrap.so.0", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3403\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=42520, ...}) = 0 mmap(NULL, 2138208, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb67e5b5000 mprotect(0x7fb67e5be000, 2093056, PROT_NONE) = 0 mmap(0x7fb67e7bd000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7fb67e7bd000 mmap(0x7fb67e7bf000, 96, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb67e7bf000 close(3) = 0 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\35\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=2127336, ...}) = 0 mmap(NULL, 3940800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb67e1f2000 mprotect(0x7fb67e3aa000, 2097152, PROT_NONE) = 0 mmap(0x7fb67e5aa000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b8000) = 0x7fb67e5aa000 mmap(0x7fb67e5b0000, 16832, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb67e5b0000 close(3) = 0 open("/lib64/libnsl.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240@\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=113584, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb67e9d8000 mmap(NULL, 2198200, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb67dfd9000 mprotect(0x7fb67dfef000, 2093056, PROT_NONE) = 0 mmap(0x7fb67e1ee000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15000) = 0x7fb67e1ee000 mmap(0x7fb67e1f0000, 6840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb67e1f0000 close(3) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb67e9d6000 arch_prctl(ARCH_SET_FS, 0x7fb67e9d6740) = 0 mprotect(0x7fb67e5aa000, 16384, PROT_READ) = 0 mprotect(0x7fb67e1ee000, 4096, PROT_READ) = 0 mprotect(0x7fb67e7bd000, 4096, PROT_READ) = 0 stat("/etc/sysconfig/64bit_strstr_via_64bit_strstr_sse2_unaligned", 0x7ffffa926630) = -1 ENOENT (No such file or directory) mprotect(0x55d9be0a5000, 4096, PROT_READ) = 0 mprotect(0x7fb67e9e1000, 4096, PROT_READ) = 0 munmap(0x7fb67e9d9000, 28419) = 0 getpid() = 12763 rt_sigaction(SIGUSR1, {0x55d9bde9d580, [USR1], SA_RESTORER|SA_RESTART, 0x7fb67e227270}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGUSR2, {0x55d9bde9d580, [USR2], SA_RESTORER|SA_RESTART, 0x7fb67e227270}, {SIG_DFL, [], 0}, 8) = 0 stat("/etc/nfs.conf", {st_mode=S_IFREG|0644, st_size=953, ...}) = 0 open("/etc/nfs.conf", O_RDONLY) = 3 brk(NULL) = 0x55d9bfde2000 brk(0x55d9bfe03000) = 0x55d9bfe03000 brk(NULL) = 0x55d9bfe03000 read(3, "#\n# This is a general conifgurat"..., 953) = 953 close(3) = 0 access("/proc/fs/nfs/filehandle", F_OK) = -1 ENOENT (No such file or directory) access("/proc/fs/nfsd/filehandle", F_OK) = 0 open("/var/lib/nfs/export-lock", O_RDWR|O_CREAT, 0666) = 3 fcntl(3, F_SETLKW, {l_type=F_WRLCK, l_whence=SEEK_CUR, l_start=0, l_len=0}) = 0 open("/etc/exports", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb67e9df000 read(4, "", 4096) = 0 read(4, "", 4096) = 0 close(4) = 0 munmap(0x7fb67e9df000, 4096) = 0 openat(AT_FDCWD, "/etc/exports.d", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 4 getdents(4, /* 3 entries */, 32768) = 72 getdents(4, /* 0 entries */, 32768) = 0 close(4) = 0 write(2, "exportfs: ", 10exportfs: ) = 10 write(2, "No file systems exported!", 25No file systems exported!) = 25 write(2, "\n", 1 ) = 1 open("/var/lib/nfs/.etab.lock", O_RDWR|O_CREAT, 0600) = 4 fcntl(4, F_SETLKW, {l_type=F_WRLCK, l_whence=SEEK_SET, l_start=0, l_len=0}) = 0 open("/var/lib/nfs/etab.tmp", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 5 close(5) = 0 open("/var/lib/nfs/etab.tmp", O_RDONLY) = 5 open("/var/lib/nfs/etab", O_RDONLY) = 6 read(5, "", 4096) = 0 read(6, "", 4096) = 0 close(5) = 0 close(6) = 0 unlink("/var/lib/nfs/etab.tmp") = 0 close(4) = 0 stat("/var/lib/nfs/etab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 open("/proc/net/rpc/auth.unix.ip/flush", O_RDWR) = 4 write(4, "1525480721\n", 11) = 11 close(4) = 0 open("/proc/net/rpc/auth.unix.gid/flush", O_RDWR) = 4 write(4, "1525480721\n", 11) = 11 close(4) = 0 open("/proc/net/rpc/nfsd.fh/flush", O_RDWR) = 4 write(4, "1525480721\n", 11) = 11 close(4) = 0 open("/proc/net/rpc/nfsd.export/flush", O_RDWR) = 4 write(4, "1525480721\n", 11) = 11 close(4) = 0 fcntl(3, F_SETLK, {l_type=F_UNLCK, l_whence=SEEK_CUR, l_start=0, l_len=0}) = 0 exit_group(0) = ? +++ exited with 0 +++如果我直接在
/etc/exports.
當然，答案在手冊頁中。
After reading /etc/exports exportfs reads files in the /etc/exports.d directory as extra export tables. Only files ending in .exports are considered. Files beginning with a dot are ignored. The format for extra export tables is the same as /etc/exports因此，您必須將文件命名為
/etc/exports.d/sge.example.com.exports.