Re: [Re: [Re: [Re: [Re: [SLUG] Cron Weird Problem from a newby]]]]
On 16 Apr, Louis Selvon wrote:
> >That sounds a little like /usr/bin/crontab is not executable due to
> problems in shared libraries or ldconfig version.
>
> >What happens if you say:
>
> >ldd /usr/bin/crontab
>
> *** Output follows:
> +++
> [root@ensim admin]# ldd /usr/bin/crontab
> libc.so.6 => /lib/i686/libc.so.6 (0x4001e000)
> /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x4000)
That looks good and correct.
> >You could also try:
>
> >strace /usr/bin/crontab -l
>
> >and see what kind of errors happen near the end.
>
> Output follows. This is a long one, and I do not understand any of it.
[...]
> send(3, "<78>Apr 16 19:34:33 crontab[8073"..., 54, 0) = 54
> rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
> open("cron/root", O_RDONLY) = -1 ENOENT (No such file or
> directory)
> write(2, "no crontab for root\n", 20no crontab for root
> ) = 20
> _exit(1)= ?
Odd. That isn't the error being reported from bash, which from memory
was: "/bin/bash: /usr/bin/crontab: file not found"
Anyway, it sounds very like the crontab -e did not in fact create a
crontab file for root. Weird!
luke
--
SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/
More Info: http://lists.slug.org.au/listinfo/slug
Re: [Re: [Re: [Re: [SLUG] Cron Weird Problem from a newby]]]
At 7:02 pm, Tuesday, April 16 2002, Ken Foskey mumbled:
> This combine with your perl question suggests a corrupt harddisk, might
> be fsck time. Dont ask me have not done this properly in Geoffs LPIC
> class yet :-)
>
Feh. Reboot into single-user mode ('linux single' at the LILO prompt), and
fsck all the hard drives you want.
On bootup, fsck is run with some options (I can't remember which, sorry)
that make it more paranoid, and to only fix slight errors. When you run it
without any options, it runs a 5-pass through check over the filesystem.
There, top of the class. :-)
--
Steve
xhost +localhost should only be done by people who would
paint their hostname and root password on an interstate
overpass.
msg22549/pgp0.pgp
Description: PGP signature
Re: [Re: [Re: [Re: [Re: [SLUG] Cron Weird Problem from a newby]]]]
>That sounds a little like /usr/bin/crontab is not executable due to
problems in shared libraries or ldconfig version.
>What happens if you say:
> ldd /usr/bin/crontab
*** Output follows:
+++
[root@ensim admin]# ldd /usr/bin/crontab
libc.so.6 => /lib/i686/libc.so.6 (0x4001e000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x4000)
[root@ensim admin]#
+++
>You could also try:
> strace /usr/bin/crontab -l
>and see what kind of errors happen near the end.
Output follows. This is a long one, and I do not understand any of it.
[root@ensim admin]# strace /usr/bin/crontab -l
execve("/usr/bin/crontab", ["/usr/bin/crontab", "-l"], [/* 21 vars */]) = 0
uname({sys="Linux", node="ensim.rackshack.net", ...}) = 0
brk(0) = 0x804dd70
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x40017000
open("/etc/ld.so.preload", O_RDONLY)= -1 ENOENT (No such file or
directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=21334, ...}) = 0
old_mmap(NULL, 21334, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40018000
close(3)= 0
open("/lib/i686/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\307\1"..., 1024) =
1024
fstat64(3, {st_mode=S_IFREG|0755, st_size=5779542, ...}) = 0
old_mmap(NULL, 1291464, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4001e000
mprotect(0x4015, 38088, PROT_NONE) = 0
old_mmap(0x4015, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
0x131000) = 0x4015
old_mmap(0x40156000, 13512, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40156000
close(3)= 0
munmap(0x40018000, 21334) = 0
getpid()= 8073
brk(0) = 0x804dd70
brk(0x804dd98) = 0x804dd98
brk(0x804e000) = 0x804e000
open("/usr/share/locale/locale.alias", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=2601, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x40018000
read(3, "# Locale name alias data base.\n#"..., 4096) = 2601
brk(0x804f000) = 0x804f000
read(3, "", 4096) = 0
close(3)= 0
munmap(0x40018000, 4096)= 0
open("/usr/lib/locale/en_US/LC_IDENTIFICATION", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=370, ...}) = 0
mmap2(NULL, 370, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40018000
close(3)= 0
open("/usr/lib/locale/en_US/LC_MEASUREMENT", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=28, ...}) = 0
mmap2(NULL, 28, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
close(3)= 0
open("/usr/lib/locale/en_US/LC_TELEPHONE", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=64, ...}) = 0
mmap2(NULL, 64, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001a000
close(3)= 0
open("/usr/lib/locale/en_US/LC_ADDRESS", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=160, ...}) = 0
mmap2(NULL, 160, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001b000
close(3)= 0
open("/usr/lib/locale/en_US/LC_NAME", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=82, ...}) = 0
mmap2(NULL, 82, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001c000
close(3)= 0
open("/usr/lib/locale/en_US/LC_PAPER", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=39, ...}) = 0
mmap2(NULL, 39, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001d000
close(3)= 0
open("/usr/lib/locale/en_US/LC_MESSAGES", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
close(3)= 0
open("/usr/lib/locale/en_US/LC_MESSAGES/SYS_LC_MESSAGES", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=57, ...}) = 0
mmap2(NULL, 57, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4015a000
close(3)= 0
brk(0x805) = 0x805
open("/usr/lib/locale/en_US/LC_MONETARY", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=291, ...}) = 0
mmap2(NULL, 291, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4015b000
close(3)= 0
open("/usr/lib/locale/en_US/LC_COLLATE", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=21499, ...}) = 0
mmap2(NULL, 21499, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4015c000
close(3)= 0
open("/usr/lib/locale/en_US/LC_TIME", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=2456, ...}) = 0
mmap2(NULL, 2456, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40162000
close(3)
Re: [Re: [Re: [Re: [SLUG] Cron Weird Problem from a newby]]]
On Mon, 2002-04-15 at 23:49, Louis Selvon wrote: > But why can admin user as well see crontab, but normal users cannot ?? > This combine with your perl question suggests a corrupt harddisk, might be fsck time. Dont ask me have not done this properly in Geoffs LPIC class yet :-) KenF -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [Re: [Re: [Re: [SLUG] Cron Weird Problem from a newby]]]
On 15 Apr, Louis Selvon wrote: > > bash-2.04$ /usr/bin/crontab -e > > bash: /usr/bin/crontab: No such file or directory > > bash-2.04$ > > >I would be concerned about this not running. > > >As root can you see crontab in the /usr/bin directory > > >ls -l /usr/bin/crontab > > >what are the permissions on the file? > > [root@ensim admin]# which crontab > /usr/bin/crontab > [root@ensim admin]# cd /usr/bin > [root@ensim bin]# ls -al crontab > -rwsr-xr-x1 root root21312 Mar 9 2001 crontab > [root@ensim bin]# > > But why can admin user as well see crontab, but normal users cannot ?? That sounds a little like /usr/bin/crontab is not executable due to problems in shared libraries or ldconfig version. What happens if you say: ldd /usr/bin/crontab I get: libc.so.6 => /lib/i686/libc.so.6 (0x40031000) /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x4000) You could also try: strace /usr/bin/crontab -l and see what kind of errors happen near the end. luke -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [Re: [Re: [Re: [SLUG] Cron Weird Problem from a newby]]]
> bash-2.04$ /usr/bin/crontab -e > bash: /usr/bin/crontab: No such file or directory > bash-2.04$ >I would be concerned about this not running. >As root can you see crontab in the /usr/bin directory >ls -l /usr/bin/crontab >what are the permissions on the file? [root@ensim admin]# which crontab /usr/bin/crontab [root@ensim admin]# cd /usr/bin [root@ensim bin]# ls -al crontab -rwsr-xr-x1 root root21312 Mar 9 2001 crontab [root@ensim bin]# But why can admin user as well see crontab, but normal users cannot ?? Louis. -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
