On Fri, 2003-09-12 at 17:30, Tom Brinkman wrote: > On Friday September 12 2003 04:47 pm, James Sparenberg wrote: > > A second way to check a disk. (I use and trust this a bit more > > than just md5sum) > > > > cd to the rpms directory on the disk. > > > > # rpm -K --nogpg *.rpm | grep NOT > > > > What this does is run and check the md5 sum of each individual > > rpm in the directory. Ignore checking gpg signature, and only > > return the results if there is a problem. Other nice thing that > > is a side fallout is that since the rpms make up the vast > > majority of the CD you'll also get some idea of readability as > > well. > > > > James > > Thanks. You're point about the overall readability is well taken > James. OTOH (runnin current cooker, rpm-4.2-18mdk), > > RPMS # rpm -K --nogpg *.rpm | grep NOT > --nogpg: unknown option > > So I removed --nogpg an tried again, > > RPMS # rpm -K *.rpm | grep NOT (after a minute or so....) > RPMS # > > I take it that since no result was output, that the CDr is OK? > 'rpm --help' says that -K just checks package signatures, so maybe > nothin was really done? If so, I suspect md5sum is a better check. > It also has to read the whole CD image. This was on RC2 CD1, > burned with cdrecord -v -eject speed=4 dev=0,0,0 -dao
hmmm the -nogpg has disapeared .. no sweat. But the signature it checks (from the maximum rpm book) is the embedded md5 signature of the rpm. So this does verify that the rpms are all solid on this cd. OOOOPS... I checked the help... should have been --nogpg not -nogpg .. sorry. --nomd5 is the other side of the coin. You could also (in the 9.1 version of rpm) use --checksig to check either or both signatures. > > ...and the md5sum from the iso on HDD before, and CDr after > burnin checked. For the original poster, back when I ran cooker > with a dialup and help with ocaissonal cooker CD's from friends, I > often had trouble reading they're burned CDr's. Specially with a > CDrom, tho booting from my burner would often work well enough to > get me thru the install after a few tries. In any event, I believe > your system is just havin trouble with the CD's you were sent.
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