Re: problem reading loop mounted .iso file on disk, get "Input/output error"

From: Nico Kadel-Garcia (nkadel_at_comcast.net)
Date: 10/07/05

  • Next message: Arno Wagner: "PAM: ... cannot retrieve authentication info" 
    Date: Fri, 7 Oct 2005 07:11:42 -0400

    "Enrique Perez-Terron" <enrio@online.no> wrote in message
    news:op.sx8pe5awnxtvbs@apeiron.home.lan...

    >> I mounted the iso I wanted to read from on this mount point:
    >>
    >> mount -o loop /home/CentOs-4.1-i386-bin1of4.iso /mnt/isoxxx
    >
    > You probably need "ro" in the options, or else the kernel will try
    > to update the inodes to reflect the last access time.

    With an iso image filesystem, which will automatically be mounted as type
    iso9660? I don't think so, and that should be auto-detected. I've just
    double-checked that on a Fedora installation.

    >> Since, that failed, I tried just cat'ing the file:
    >> cat vmlinuz
    >> cat: vmlinuz: Input/output error
    >>
    >> I don't know why the contents of the .iso file could be unreadable in
    >> this fashion (and what this rather non-descriptive error message is
    >> trying to tell me). Note, that I have no problem reading and writing
    >> to the partition which contains the .iso file that I mounted.
    >
    > If the "ro" mount option does not help, you could check if you can read
    > the very blocks that this iso file occupies:
    >
    > cp /home/CentOs-4.1-i386-bin1of4.iso /dev/null && echo OK || echo $?,
    > ouch!

    If the ISO is corrupt, why not simply redownload it?

  • Next message: Arno Wagner: "PAM: ... cannot retrieve authentication info"

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