error 2 reading header: cpio: Bad magic
Rick Stevens
rstevens at vitalstream.com
Wed Mar 2 18:05:24 UTC 2005
Gibson, Danny wrote:
> Hey Rick,
>
> That was it. I was using 650MB disks, not 700MB. Installed great.
> Thanks for the help.
No problem, Danny.
I've posted this info to the list before, but for any newbies to the
list, here's how CDs are written:
CDs are written in a spiral pattern just like an old vinyl record.
It is written in the opposite direction, however. Unlike a record, the
pattern starts at the center and works out towards the edge. As you get
towards the edge, the media gets a bit wonky (the coating isn't as
uniform, you have more flutter as the edge has a faster linear motion
than the center, etc.). Each disk must start with a 20MB "lead in" bit
(like the blank space at the beginning of a record) and a 20MB "lead
out" bit (like the blank space at the center of the record). There is a
20MB intersession gap between sessions, as well (the blank space between
cuts on a record).
All Red Hat/Fedora images since, oh, 7.1, are pretty full 650MB images.
Since the image is 650MB (and there's a 20MB lead in and 20MB lead out),
you really fill ALL of the media. 650MB media takes into account the
lead in/out bit (it's really capable of 700MB), but as I said, the
very edge of ANY CD is full of land mines. A 650MB disc MAY work, but I
wouldn't rely on it. 700MB media is actually capable of 750MB. Just
buy 700MB/80 minute CD-Rs and you'll be fine. In fact, I threw away
all of my old, unburned 650MB media (well, actually we converted them
into Christmas tree ornaments one year
> -----Original Message-----
> From: redhat-install-list-bounces at redhat.com
> [mailto:redhat-install-list-bounces at redhat.com] On Behalf Of Rick Stevens
> Sent: Tuesday, March 01, 2005 11:20 AM
> To: Getting started with Red Hat Linux
> Subject: Re: error 2 reading header: cpio: Bad magic
>
> Gibson, Danny wrote:
> > Yes, when I view the CD in my Windows box the following is displayed.
> > The files definitively appear to be there. I can browse the CD into
> > each sub-directory. This box will load Win98, NT4.0, XP and Mandrake
> > 8.2 with no problem. I would think if there was a hardware problem the
> > other OS's shouldn't install. Do you think it is possible that the iso
> > image itself may have an issue?
>
> Sure. You said that the MD5 checksum of the ISO image was correct,
> right? You can run the MD5 checksum on the burned disk as well:
>
> md5sum /dev/cdrom
>
> Do NOT run the checksum on the mount point (/mnt/cdrom)--do it to the
> raw device.
>
> Things to consider:
>
> 1. Don't burn at the highest speed your drive can do (you're already
> doing that).
>
> 2. Make sure you use 700MB media--not 650MB media. The ISOs completely
> fill a 650MB media and the outer edge of CD-ROM media is not reliable.
> Use 700MB CDRs.
>
> 3. Use only name-brand media (I use TDK or Maxell mostly).
>
> 4. Check the checksum of the burned media as shown above.
>
> 5. You can try turning off DMA operations on the CD-ROM drive during the
> installation. Assuming your CD-ROM is the primary device on the
> secondary controller (or device /dev/hdc):
>
> boot: linux hdc=nodma
>
> Is there a reason you're using RH9? It reached end of life almost a
> year ago and only the Fedora Legacy project supports it now. The latest
> "free" Red Hat Linux is Fedora Core 3. FC3 should work with the 384MB
> of RAM you have, although the odds are the system will do some
> swapping. I'd get the thing up to 512MB if possible.
>
> >
> > D:\>dir /s
> > Volume in drive D is Red Hat Linux_i3
> > Volume Serial Number is 5DA7-B491
> >
> > *.* I didn't display them all here...
> >
> > Total Files Listed:
> > 655 File(s) 675,566,545 bytes
> > 48 Dir(s) 0 bytes free
> >
> > Danny
> >
> >
> >
> > -----Original Message-----
> > From: redhat-install-list-bounces at redhat.com
> > [mailto:redhat-install-list-bounces at redhat.com] On Behalf Of Rick
> Stevens
> > Sent: Monday, February 28, 2005 8:04 PM
> > To: Getting started with Red Hat Linux
> > Subject: Re: error 2 reading header: cpio: Bad magic
> >
> > Gibson, Danny wrote:
> > > Howdy Ya,
> > >
> > >
> > >
> > > I just finished a long download of the RedHat 9 iso files from
> > > ftp.redhat.com <ftp://ftp.redhat.com/> and created my installation
> > > disk. I also used the MD5 checksum after the download and they
> verified
> > > OK. The problem I am encountering is that once the install starts I
> > > encounter the following error and the install craters:
> > >
> > >
> > >
> > > *error 2 reading header: **cpio**: Bad **magic** *
> > >
> > >
> > >
> > > The hardware is as follows:
> > >
> > >
> > >
> > > *Pentium III 550MHz*
> > >
> > > *384 MB RAM*
> > >
> > > *Intel i440BX chipset*
> > >
> > > *Primary IDE controller - 20G IDE Hard Drive - No partitions defined*
> > >
> > > *Secondary IDE controller - Toshiba CD-ROM drive*
> > >
> > >
> > >
> > > I have tried burning new CD/ROM disk at the slowest speed but
> incur the
> > > same exact error.
> > >
> > > I have Mandrake 8.2 install CD/ROM that will install with no
> problem on
> > > this same machine.
> > >
> > > I am at a lost as to what the issue might be and what to try next
> in an
> > > attempt to get this installed.
> > >
> > > Any suggestions would be greatly appreciated.
> >
> > Are you certain you burned the CDs correctly? By that, I mean, if you
> > put the CDs into live machine and look at them, do you see a bunch of
> > files or just one. If you see only one, you burned the CDs wrong.
> >
> > ISO images are images of entire CDs and must be burned that way. In
> > your CD burning software, make sure you select the input as "ISO image".
> > Some instructions are at:
> >
> > http://www.rhil.net/docs/faq.html#making_cds
> > ----------------------------------------------------------------------
> > - Rick Stevens, Senior Systems Engineer rstevens at vitalstream.com -
> > - VitalStream, Inc. http://www.vitalstream.com -
> > - -
> > - What is a "free" gift? Aren't all gifts free? -
> > ----------------------------------------------------------------------
> >
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> --
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer rstevens at vitalstream.com -
> - VitalStream, Inc. http://www.vitalstream.com -
> - -
> - Better to understand a little than to misunderstand a lot. -
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--
----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer rstevens at vitalstream.com -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- UNIX is actually quite user friendly. The problem is that it's -
- just very picky of who its friends are! -
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