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Re: mediacheck failing ...

David Timms wrote:
Andre Robatino wrote:
Andre Robatino wrote:
I'm pretty sure that it was fixed, or at least less likely to manifest. I was using the same computer, with the same DVD drive, when F7 came out, and found by going through a pile of old Fedora CDs that I burned without padding that all of them passed mediacheck anyway, though many of them failed earlier. Testing now with F8, I find that 3 out of 3 of them fail (I was convinced at that point and stopped checking).

Just to clarify, the mediacheck I'm talking about is checkisomd5 from the anaconda-runtime package, which is the equivalent of the regular mediacheck, but done while booted up in a currently installed Fedora. So my mediacheck was using the kernel in the distro being used at the time (F7/F8), not the kernel on the old install discs themselves, as would have been the case if I booted from them.

find mediacheck

This suggests certain hdparm parameters get applied when you boot the dvd and start linux mediacheck, this wouldn't happen if you are running from a live f7/8.

Also there is suggestion to try:
ide=nodma mediacheck
in https://bugzilla.redhat.com/show_bug.cgi?id=177526

Does either make any difference ?

I thought that using the word "mediacheck" only caused the installer to go to the mediacheck immediately, instead of asking first, so we only tried the "ide=nodma" option, which didn't help. The latter, at least, is definitely not a reliable workaround, but applying the proper zero-padding seems to be. Even if the ide=nodma works, one has to remember to use it during the actual install, not just the mediacheck, then to remove it from grub.conf later, since any options used during install end up there.

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