Error References
| Sections |
|---|
| Filesystem |
| Modules |
| Networking |
| Permissions |
| Processes |
| Tools |
| System |
Error reference section.
Filesystem
-
df Says, Cannot read table of mounted file systems
- There is probably something wrong with your /etc/mtab or /etc/fstab files.
-
EXT2-fs warning: checktime reached
- Kernels from 1.0 onwards support checking a file system based on the elapsed time since the last check as well as by the number of mounts.
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EXT2-fs warning: maximal count reached
- This message is issued by the kernel when it mounts a file system that's marked as clean, but whose "number of mounts since check" counter has reached the predefined value.
-
EXT2-fs: warning: mounting unchecked file system
- You need to run e2fsck (or fsck -t ext2 if you have the fsck front end program) with the -a option to get it to clear the dirty flag, and then cleanly unmount the partition during each shutdown.
-
fdisk Says Partition n Has an Odd Number of Sectors
- The PC disk partitioning scheme works in 512-byte sectors, but Linux uses 1K blocks.
-
fdisk Says, "Partition X has different physical/logical..."
- If the partition number (X, above) is 1, this is the same problem as in fdisk: Partition 1 does not start on cylinder boundary.
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fdisk: Partition 1 does not start on cylinder boundary
- The version of fdisk that comes with many Linux systems creates partitions that fail its own validity checking.
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Mtools Utilities Say They Cannot Initialize Drive X
- This means that mtools is having trouble accessing the drive.
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No Utmp Entry. You Must Exec ... when Logging In
- Your /var/run/utmp is screwed up.
-
You don't exist. Go away.
- This is not a viral infection.
Modules
-
Modprobe Can't Locate Module, XXX, and Similar Messages
- These types of messages mostly occur at boot time or shutdown.
Networking
-
Warning: obsolete routing request made
- This is nothing to worry about.
Permissions
-
FTP server says: "421 service not available, remote server has closed connection."
- If an FTP server won't allow logins, it is probably configured correctly, but the problem is probably with authorizing users at login.
-
Operation not permitted
- One or more of the file's or directory's attribute bits are set incorrectly.
-
Shell-Init: Permission Denied when I Log In
- Your root directory and all the directories up to your home directory must be readable and executable by everybody.
Processes
-
INET: Warning: old style ioctl... called!
- You are trying to use the old network configuration utilities.
-
init: Id "x" respawning too fast: disabled for 5 minutes
- In most distributions this means that the system is booting by default into runlevel 5, which is supposed to respawn (re-start again after it's been exited) a graphical login via xdm, kdm, gdm, or whatever, and the system can't locate the program.
-
Warning--bdflush Not Running
- Modern kernels use a better strategy for writing cached disk blocks.
Tools
-
GCC Says, Internal compiler error
- If the fault is repeatable (i.e., it always happens at the same place in the same file - even after rebooting and trying again, using a stable kernel) you have discovered a bug in GCC.
-
ld: unrecognized option '-m486'
- You have an old version of ld.
-
Make Says, Error 139
- Your compiler (GCC) dumped core.
System
-
At the Start of Booting: Memory tight
- This means that you have an extra-large kernel, which means that Linux has to do some special memory-management magic to be able to boot itself from the BIOS.
-
programname: error in loading shared libraries: lib xxx..so. x: cannot open shared object file: No such file or directory
- A message like this, when the program that you're trying to run uses shared libraries, usually means one of two things: the program was either compiled on a machine that had a different set of libraries or library paths than yours; or you've upgraded your libraries but not the program.
-
The System Log Says, end_request: I/O error, ....
- This error message, and messages like it, almost always indicate a hardware error with a hard drive.
-
Unknown Terminal Type linux and Similar
- In early kernels the default console terminal type has changed from console to linux.

