John Summerfield wrote: > William L. Maltby wrote: >> Folks, >> >> As much as I hate to, I feel I need to post my long story and ask help. >> >> Shortly after the release announcement, I kicked off rtorrent and >> downloaded the CD and DVD images. Since my cable provider does my >> "throttling", I disabled throttling and shared for several days, >> "returning" several GBs at no objectionable loss I could discern. >> >> While that was going on, I used cdrecord (don't jump to conclusions >> here, read on) via CLI to burn the CDs. This on a fully-up-to-date >> CentOS... well here >> >> uname -a >> Linux centos01.homegroannetworking 2.6.9-42.0.10.EL #1 Tue Feb 27 >> 09:24:42 EST 2007 i686 athlon i386 GNU/Linux >> >> $ lsb_release -a >> LSB Version: :core-3.0-ia32:core-3.0-noarch:graphics-3.0- >> ia32:graphics-3.0-noarch >> Distributor ID: CentOS >> Description: CentOS release 4.4 (Final) >> Release: 4.4 >> Codename: Final >> >> CD writer is a generic 52x24x52x that I have used to burn many CDs >> before w/o problems. On this unit and the other I'll mention, the writer >> is master on IDE channel 2. Neither has an HD on that channel currently. >> The other unit has SATA drives and the writer is again on IDE 2 by >> itself. >> >> Disc 1 passes media check and 2 - 6 fail consistently. Checks OK: >> >> ...CentOS-5.0-Old]$ md5sum -c md5sum.txt >> CentOS-5.0-i386-bin-1of6.iso: OK >> CentOS-5.0-i386-bin-2of6.iso: OK >> CentOS-5.0-i386-bin-3of6.iso: OK >> CentOS-5.0-i386-bin-4of6.iso: OK >> CentOS-5.0-i386-bin-5of6.iso: OK >> CentOS-5.0-i386-bin-6of6.iso: OK >> CentOS-5.0-i386-bin-DVD.iso: OK >> >> IIRC, I also used the sha1 check (can't recall the command ATM) and it >> also passed. >> > > At one time I got media check errors on a particular DVD in a new drive > sometimes but not others. > > My solution? Don't do the media check, that way it can't fail:-) If the > install works, who cares what media check says? > > Why not burn boot.iso and do an NFS install? You don't need to burn the > rest at all. > > > My 2c ; Ditto (or similar?) - Memorex DVD writer with the CentOS5 dvd - md5sum says the iso is fine, but even burning at the lowest speed it would not pass the Nero "verify", however the install was flawless. Maybe i had 3 bad dvds in a row, but unlikely. Maybe it didnt write well, but the damaged data was in packages i did not install? Fairly likely. Bottom line is that the md5 passed (good iso image) and the DVD install worked. MrKiwi.