Input Outpout Error

[Cathy Reaves]

Why wouldn't fsck run?  And isn't that the purpose of fsck - to fix errors
such as this?  With I/O errors, there is clearly a problem with the file
system.

+++++++++++++++++++++++++++

The system utility *fsck* (for "*f*ile *s*ystem *c*hec*k*" or "*f*ile *s*ystem
*c*onsistency chec*k*") is a tool for checking the consistency of a file
system <http://mail.google.com/wiki/File_system> in the
Unix<http://mail.google.com/wiki/Unix>system and clones thereof.

Generally, fsck is run automatically at boot time when the system detects
that a file system is in an inconsistent state, indicating a non-graceful
shutdown, such as a
crash<http://mail.google.com/wiki/Crash_%28computing%29>or power loss.
Typically, fsck utilities provide options for either
interactively repairing damaged file systems (the user must decide how to
fix specific problems), automatically deciding how to fix specific problems
(so the user doesn't have to answer any questions), or reviewing the
problems that need to be resolved on a file system without actually fixing
them.
Fsck can also be run manually by the system
administrator<http://mail.google.com/wiki/System_administrator>if
there is believed to be a problem with the file system. However,
running
fsck on a mounted file system can potentially cause *severe* data
corruption/loss.

+++++++++++++++++

Obviously you would not run fsck while the file system is mounted, but I
don't know of any other way to fix a problem such as this.  Do you?  This is
not bad advice!

Cathy

On Nov 6, 2007 10:45 AM, Kuba Ober <kuba at mareimbrium.org> wrote:

> On Tuesday 06 November 2007, Cathy Reaves wrote:
> > Anytime I've seen errors like that, sounds like you need to fsck - or
> > reboot with fsck.
>
> On I/O errors?! If fsck even runs, it will likely wreck things even more.
> That
> seems like bad advice.
>
> Cheers, Kuba
>
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