現在、Linuxユーザーの追加、削除、修正に問題があります。 Linuxに初めて触れたので、この問題を解決するためにすべての努力を尽くしたと確信しています。
[root@device01 /]# useradd testuser
useradd: cannot lock /etc/passwd; try again later.
既存のユーザーのパスワードを変更しようとすると、次も返されます。
[root@device01 ~]# passwd olduser
Changing password for user olduser.
New password:
BAD PASSWORD: it is based on a dictionary word
Retype new password: passwd: Authentication token manipulation error
ロックファイル（/etc/gshadow.lock、/etc/shadow.lock、/etc/passwd.lock、および/etc/group.lock）がないことを確認してください。
ファイルシステムが正しくマウントされていることを確認するために、次のコマンドを実行しようとしましたが失敗しました。
[root@device01 /]# mount -o remount,rw /
can't create lock file /etc/mtab~60598: No space left on device (use -n flag to override)
[root@device01 /]#
ディスク領域の使用量を確認しても何も表示されません（欠けていない限り）。
[root@device01 /]# df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup-lv_root 51606140 6953044 42031656 15% /
tmpfs 3881396 0 3881396 0% /dev/shm
/dev/mapper/ddf1_4c5349202020202080862925000000004711471100001e78p1
495844 120559 349685 26% /boot
/dev/mapper/VolGroup-lv_home
112173808 20244156 86231504 20% /home
/dev/mapper/ddf1_4c53492020202020808629250000000047114711000028a0p1
1032131696 382893688 596808680 40% /backup
/dev/sde1 1922828276 1011928116 813226168 56% /mnt/BackupDrive
サーバーは約2週間再起動されておらず、ゴールデンレートを無視して最後の手段として優先しました。
バージョン情報は次のとおりです。
[root@device01 /]# uname Linux [root@device01 /]# lsb_release LSB バージョン:
:base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64 :グラフィック-4.0-noarch :print-4.0-amd64 :print-4.0-noarch
私が試すことができるか、欠落している可能性がある他のものはありますか？
編集＃1
[root@device01 /]# mount
/dev/mapper/VolGroup-lv_root on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/mapper/ddf1_4c5349202020202080862925000000004711471100001e78p1 on /boot type ext4 (rw)
/dev/mapper/VolGroup-lv_home on /home type ext4 (rw)
/dev/mapper/ddf1_4c53492020202020808629250000000047114711000028a0p1 on /backup type ext4 (rw)
/dev/sde1 on /mnt/BackupDrive type ext4 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
編集＃2
[root@device01 ~]# strace useradd testuser
execve("/usr/sbin/useradd", ["useradd", "testuser"], [/* 28 vars */]) = 0
brk(0) = 0x7fabaf304000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae831000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=48359, ...}) = 0
mmap(NULL, 48359, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fabae825000
close(3) = 0
open("/lib64/libaudit.so.1", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260%@\3243\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=115536, ...}) = 0
mmap(NULL, 2208304, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fabae3f7000
mprotect(0x7fabae40e000, 2093056, PROT_NONE) = 0
mmap(0x7fabae60d000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7fabae60d000
close(3) = 0
open("/lib64/libselinux.so.1", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0PX\300\3163\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=124624, ...}) = 0
mmap(NULL, 2221912, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fabae1d8000
mprotect(0x7fabae1f5000, 2093056, PROT_NONE) = 0
mmap(0x7fabae3f4000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c000) = 0x7fabae3f4000
mmap(0x7fabae3f6000, 1880, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fabae3f6000
close(3) = 0
open("/lib64/libacl.so.1", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\36\200\3213\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=33816, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae824000
mmap(NULL, 2126416, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fabadfd0000
mprotect(0x7fabadfd7000, 2093056, PROT_NONE) = 0
mmap(0x7fabae1d6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7fabae1d6000
close(3) = 0
open("/lib64/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\356A\3153\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1926520, ...}) = 0
mmap(NULL, 3750152, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fabadc3c000
mprotect(0x7fabaddc6000, 2097152, PROT_NONE) = 0
mmap(0x7fabadfc6000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18a000) = 0x7fabadfc6000
mmap(0x7fabadfcb000, 18696, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fabadfcb000
close(3) = 0
open("/lib64/libdl.so.2", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\r\300\3153\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=22536, ...}) = 0
mmap(NULL, 2109696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fabada38000
mprotect(0x7fabada3a000, 2097152, PROT_NONE) = 0
mmap(0x7fabadc3a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fabadc3a000
close(3) = 0
open("/lib64/libattr.so.1", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\23\300\3203\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=21152, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae823000
mmap(NULL, 2113888, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fabad833000
mprotect(0x7fabad837000, 2093056, PROT_NONE) = 0
mmap(0x7fabada36000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fabada36000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae822000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae820000
arch_prctl(ARCH_SET_FS, 0x7fabae8207a0) = 0
mprotect(0x7fabada36000, 4096, PROT_READ) = 0
mprotect(0x7fabadc3a000, 4096, PROT_READ) = 0
mprotect(0x7fabadfc6000, 16384, PROT_READ) = 0
mprotect(0x7fabae1d6000, 4096, PROT_READ) = 0
mprotect(0x7fabae3f4000, 4096, PROT_READ) = 0
mprotect(0x7fabae60d000, 4096, PROT_READ) = 0
mprotect(0x7fabaea4b000, 4096, PROT_READ) = 0
mprotect(0x7fabae832000, 4096, PROT_READ) = 0
munmap(0x7fabae825000, 48359) = 0
statfs("/selinux", {f_type="EXT2_SUPER_MAGIC", f_bsize=4096, f_blocks=12901535, f_bfree=11155729, f_bavail=10500369, f_files=3276800, f_ffree=0, f_fsid={1688549107, 1017566797}, f_namelen=255, f_frsize=4096}) = 0
brk(0) = 0x7fabaf304000
brk(0x7fabaf325000) = 0x7fabaf325000
open("/proc/filesystems", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae830000
read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tb"..., 1024) = 317
read(3, "", 1024) = 0
close(3) = 0
munmap(0x7fabae830000, 4096) = 0
socket(PF_NETLINK, SOCK_RAW, 9) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
open("/usr/lib/locale/locale-archive", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=99158576, ...}) = 0
mmap(NULL, 99158576, PROT_READ, MAP_PRIVATE, 4, 0) = 0x7faba79a2000
close(4) = 0
open("/proc/sys/kernel/ngroups_max", O_RDONLY) = 4
read(4, "65536\n", 31) = 6
close(4) = 0
mmap(NULL, 528384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae79f000
access("/etc/shadow", F_OK) = 0
access("/etc/gshadow", F_OK) = 0
open("/etc/default/useradd", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0600, st_size=119, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae830000
read(4, "# useradd defaults file\nGROUP=10"..., 4096) = 119
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 5
connect(5, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(5) = 0
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 5
connect(5, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(5) = 0
open("/etc/nsswitch.conf", O_RDONLY) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=1688, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae82f000
read(5, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1688
read(5, "", 4096) = 0
close(5) = 0
munmap(0x7fabae82f000, 4096) = 0
open("/etc/ld.so.cache", O_RDONLY) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=48359, ...}) = 0
mmap(NULL, 48359, PROT_READ, MAP_PRIVATE, 5, 0) = 0x7fabae793000
close(5) = 0
open("/lib64/libnss_files.so.2", O_RDONLY) = 5
read(5, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360!\0\0\0\0\0\0"..., 832) = 832
fstat(5, {st_mode=S_IFREG|0755, st_size=65928, ...}) = 0
mmap(NULL, 2151824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 5, 0) = 0x7faba7794000
mprotect(0x7faba77a0000, 2097152, PROT_NONE) = 0
mmap(0x7faba79a0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 5, 0xc000) = 0x7faba79a0000
close(5) = 0
mprotect(0x7faba79a0000, 4096, PROT_READ) = 0
munmap(0x7fabae793000, 48359) = 0
open("/etc/group", O_RDONLY|O_CLOEXEC) = 5
fcntl(5, F_GETFD) = 0x1 (flags FD_CLOEXEC)
fstat(5, {st_mode=S_IFREG|0644, st_size=2595, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae82f000
read(5, "root:x:0:\nbin:x:1:bin,daemon\ndae"..., 4096) = 2595
close(5) = 0
munmap(0x7fabae82f000, 4096) = 0
read(4, "", 4096) = 0
close(4) = 0
munmap(0x7fabae830000, 4096) = 0
open("/etc/login.defs", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=1816, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae830000
read(4, "#\n# Please note that the paramet"..., 4096) = 1816
read(4, "", 4096) = 0
close(4) = 0
munmap(0x7fabae830000, 4096) = 0
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4) = 0
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4) = 0
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=4671, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae830000
read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 4096
read(4, "b:x:560:501::/home/claireb:/bin/"..., 4096) = 575
read(4, "", 4096) = 0
close(4) = 0
munmap(0x7fabae830000, 4096) = 0
open("/etc/group", O_RDONLY|O_CLOEXEC) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=2595, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae830000
read(4, "root:x:0:\nbin:x:1:bin,daemon\ndae"..., 4096) = 2595
read(4, "", 4096) = 0
close(4) = 0
munmap(0x7fabae830000, 4096) = 0
open("/etc/.pwd.lock", O_WRONLY|O_CREAT|O_CLOEXEC, 0600) = 4
fcntl(4, F_GETFD) = 0x1 (flags FD_CLOEXEC)
rt_sigaction(SIGALRM, {0x7fabadd2b110, ~[], SA_RESTORER, 0x7fabadc6e6a0}, {SIG_DFL, [], 0}, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [ALRM], [], 8) = 0
alarm(15) = 0
fcntl(4, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = 0
alarm(0) = 15
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGALRM, {SIG_DFL, [], SA_RESTORER, 0x7fabadc6e6a0}, NULL, 8) = 0
getpid() = 63618
open("/etc/passwd.63618", O_WRONLY|O_CREAT|O_EXCL, 0600) = -1 ENOSPC (No space left on device)
close(4) = 0
open("/usr/share/locale/locale.alias", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=2512, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fabae830000
read(4, "# Locale name alias data base.\n#"..., 4096) = 2512
read(4, "", 4096) = 0
close(4) = 0
munmap(0x7fabae830000, 4096) = 0
open("/usr/share/locale/en_US.UTF-8/LC_MESSAGES/shadow.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US.utf8/LC_MESSAGES/shadow.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US/LC_MESSAGES/shadow.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.UTF-8/LC_MESSAGES/shadow.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.utf8/LC_MESSAGES/shadow.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/shadow.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "useradd: cannot lock /etc/passwd"..., 51useradd: cannot lock /etc/passwd; try again later.
) = 51
exit_group(1) = ?
編集＃3
[root@device01 ~]# df -i /
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/mapper/VolGroup-lv_root
3276800 3276798 2 100% /
答え1
can't create lock file /etc/mtab~60598: No space left on device (use -n flag to override) open("/etc/passwd.63618", O_WRONLY|O_CREAT|O_EXCL, 0600) = -1 ENOSPC (No space left on device)
ディスク容量の問題です。ほとんどのファイルシステムには、ファイルの内容に対する制限とファイル数（サイズ）の制限という2つの制限があります。インデックスノードテーブル。削除プロセスは残りのスペースが十分であることを示しているため、df /インデックスノードの数に問題があるようです。で確認できますdf -i /。
ext4（Linuxで最も一般的なファイルシステムタイプ）の場合、既存のファイルシステムで inode の数を増やすことはできません。。小さなファイルが多い場合（すべてのサブディレクトリのファイル数を報告する方法は？他のファイルシステムに移動してみてください。 ext4ファイルシステムを縮小することで、より多くのinodeを持つ他のファイルシステム用のスペースを解放できますが（ファイルシステムを作成するときにinodeの数を設定できます）、ファイルシステムのマウント中にこれを行うことはできません。