cov...@ccs.covici.com wrote: > Dale <rdalek1...@gmail.com> wrote: > >> bitlord wrote: >>> On Mon, 25 May 2015 22:27:39 -0400 >>> cov...@ccs.covici.com wrote: >>> >>>> Hi. I am trying to burn an iso image to a cd (maybe its actually a >>>> dvd disk), and it boots without any errors, and I can mount the iso >>>> with the loop option, but if I try to mount the cd, it complains >>>> about ufs file systems, and if I try to mount with -t iso9660, it >>>> just says bad file type or bad superblock and the disk is unusable. >>>> Nothing interesting in the logs, it just says the same about ufs and >>>> nothing about iso9660. >>>> >>>> I am using cdrecord from cdrtools-3.01_alpha28 and I am running the >>>> unstable version of gentoo. >>>> >>>> Any assistance would be appreciated. >>>> >>> Sorry, I know nothing about standards, optical media and filesystems, >>> and don't understand how it works, once I had some issues with mounting >>> optical media, also missing a filesystem which I fixed with enabling >>> CONFIG_UDF_FS in kernel. I tried to read about UDF... before replying, >>> but it is too much for me, if I understand it correctly it is not just >>> what is written to the media but also how (different modes, for adding >>> more data later ...), so may be some option while burning media that >>> allows you to use free space left on the disk. >>> If this is not useful just ignore it. ;-) >>> >>> >> Same boat here. From what I understand, if it is more than 2GBs, it >> needs UDF support. No idea if that applies to ISOs to tho. > OK, I have a bit more info, I managed to burn the CD on another box and > when I tried to mount it using this drive, it gave me in the logs > May 26 02:41:59 ccs.covici.com kernel: end_request: I/O error, dev sr0, > sector 942680 > May 26 02:41:59 ccs.covici.com kernel: Buffer I/O error on device sr0, > logical block 117835 > May 26 02:42:00 ccs.covici.com kernel: end_request: I/O error, dev sr0, > sector 942680 > May 26 02:42:00 ccs.covici.com kernel: Buffer I/O error on device sr0, > logical block 117835 > but it did mount successfully! and I did a diff against the same iso > mounted via -o loop and there were no differences. >
There is a CD/DVD guru on here that will likely know what's going wrong, whether it is a burn issue or a person in the keyboard issue. Hang tight. I'm sure he will be along soon. Dale :-) :-)
