Mount NFS failed with "Connection refused"

• Rick

  Posts: 4

  Joined: 2024-08-09 4:38

  2024-08-09 6:46

  Hi,
  
  Board: luckfox_pico_plus
  Build: buildroot, SPI
  
  I tried to mount nfs but always return "Connection refused"
  
  from luckfox board I run:
  mount -t nfs 192.168.1.162:/mnt/exports ./nfs
  mount: mounting 192.168.1.162:/mnt/exports on ./nfs failed: Connection refused
  
  I can mount this nfs from another Linux box without problem.
  Here is my server /etc/exports:
  /mnt/exports 192.168.1.0/24(rw,sync,all_squash,no_subtree_check)
  
  Attached is the tcpdump capture file, it looks normal but the mount just not continue and give "Connection refused" error.
  
  I use strace to see which function call give this error, here is the log:
  
  [root@luckfox mnt]# strace mount -t nfs 192.168.1.162:/mnt/exports ./nfs
  execve("/bin/mount", ["mount", "-t", "nfs", "192.168.1.162:/mnt/exports", "./nfs"], 0xaeee6d40 /* 16 vars */) = 0
  readlinkat(AT_FDCWD, "/proc/self/exe", "/bin/busybox", 4096) = 12
  mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xa6fd5000
  open("/oem/usr/lib/libtirpc.so.3", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/oem/lib/libtirpc.so.3", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/lib/libtirpc.so.3", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/lib/libtirpc.so.3", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/usr/lib/libtirpc.so.3", O_RDONLY) = 3
  fstat(3, {st_mode=S_IFREG|0755, st_size=132372, ...}) = 0
  mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xa6fd4000
  read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\4\\\0\0004\0\0\0"..., 4096) = 4096
  mmap2(NULL, 200704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xa6f8f000
  mmap2(0xa6f8f000, 127964, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0xa6f8f000
  mmap2(0xa6fbe000, 4184, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x1f000) = 0xa6fbe000
  close(3) = 0
  munmap(0xa6fd4000, 4096) = 0
  open("/oem/usr/lib/libc.so.0", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/oem/lib/libc.so.0", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/lib/libc.so.0", O_RDONLY) = 3
  fstat(3, {st_mode=S_IFREG|0755, st_size=427896, ...}) = 0
  mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xa6fd4000
  read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0@\36\1\0004\0\0\0"..., 4096) = 4096
  mmap2(NULL, 585728, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xa6f00000
  mmap2(0xa6f00000, 420480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0xa6f00000
  mmap2(0xa6f77000, 4852, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x67000) = 0xa6f77000
  mmap2(0xa6f79000, 88080, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa6f79000
  close(3) = 0
  munmap(0xa6fd4000, 4096) = 0
  stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0755, st_size=32608, ...}) = 0
  open("/oem/usr/lib/libc.so.0", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/oem/lib/libc.so.0", O_RDONLY) = -1 ENOENT (No such file or directory)
  open("/lib/libc.so.0", O_RDONLY) = 3
  fstat(3, {st_mode=S_IFREG|0755, st_size=427896, ...}) = 0
  close(3) = 0
  mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xa6fd4000
  set_tls(0xa6fd4490) = 0
  open("/dev/urandom", O_RDONLY) = 3
  read(3, "\341\362\256J", 4) = 4
  close(3) = 0
  mprotect(0x4ef000, 8192, PROT_READ) = 0
  mprotect(0xa6fbe000, 4096, PROT_READ) = 0
  mprotect(0xa6f77000, 4096, PROT_READ) = 0
  mprotect(0xa6fd6000, 4096, PROT_READ) = 0
  set_tid_address(0xa6fd4068) = 924
  set_robust_list(0xa6fd406c, 12) = 0
  rt_sigaction(SIGRTMIN, {sa_handler=0xa6f5b288, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0xa6f126bc}, NULL, 8) = 0
  rt_sigaction(SIGRT_1, {sa_handler=0xa6f5b34c, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0xa6f126bc}, NULL, 8) = 0
  rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
  ugetrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
  ioctl(0, TCGETS, {B9600 opost isig icanon echo ...}) = 0
  ioctl(1, TCGETS, {B9600 opost isig icanon echo ...}) = 0
  getuid32() = 0
  brk(NULL) = 0x4f2000
  brk(0x4f3000) = 0x4f3000
  getuid32() = 0
  geteuid32() = 0
  brk(0x4f4000) = 0x4f4000
  mount("192.168.1.162:/mnt/exports", "./nfs", "nfs", MS_SILENT, "addr=192.168.1.162") = -1 ECONNREFUSED (Connection refused)
  write(2, "mount: mounting 192.168.1.162:/m"..., 79mount: mounting 192.168.1.162:/mnt/exports on ./nfs failed: Connection refused
  ) = 79
  exit_group(255) = ?
  +++ exited with 255 +++
  [root@luckfox mnt]#
  
  Any idea to solve this problem?

  Attachments

  nfs-issue.pcap.zip (1.94 KiB)

  Downloaded 90 times

  • Quote