Re: [gentoo-user] having problems getting burned cds to work
Am 26.05.2015 um 09:04 schrieb cov...@ccs.covici.com: 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 are several possibilities which come to my mind. Regardless of whether the image can be loop mounted or not, have you tried to download it again - maybe from another mirror - or have you checked the MD5 or SHAxxx checksums of the downloaded iso? Maybe the file is corrupt. Have you tried to burn it onto another blank DVD from a different manufacturer? Maybe your blank DVDs don't work well together with your DVD writer. Have you checked that you have built every necessary kernel module? Maybe your missing one like the mentioned UDF module or a hardware (drive/bus) related module. I guess with this drive you mean the drive in the other box? Otherwise the drive could be faulty. Have you checked the cables? Or in case of a bug in cdrecord, have you tried to downgrade cdrtools?
Re: [gentoo-user] having problems getting burned cds to work
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. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] having problems getting burned cds to work
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 :-) :-)
Re: [gentoo-user] having problems getting burned cds to work
On Tue, 26 May 2015 01:47:50 -0400, cov...@ccs.covici.com wrote: 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. But its an iso, and I can mount the .iso via loop, why should it care about udf support and I think udf is trying to read the cd, because its apparently not thinking its an iso9660 file system. Just because it is an image file with a .iso extension does not mean it uses the iso9600 filesystem. DVDs do use UDF. Can you mount it with -t udf. What does isoinfo -d -i /path/to/file.iso say about it? -- Neil Bothwick Electrocution, n.: Burning at the stake with all the modern improvements. pgpEAuATN42G8.pgp Description: OpenPGP digital signature
Re: [gentoo-user] having problems getting burned cds to work
Heiko Baums li...@baums-on-web.de wrote: Am 26.05.2015 um 09:04 schrieb cov...@ccs.covici.com: 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 are several possibilities which come to my mind. Regardless of whether the image can be loop mounted or not, have you tried to download it again - maybe from another mirror - or have you checked the MD5 or SHAxxx checksums of the downloaded iso? Maybe the file is corrupt. Have you tried to burn it onto another blank DVD from a different manufacturer? Maybe your blank DVDs don't work well together with your DVD writer. Have you checked that you have built every necessary kernel module? Maybe your missing one like the mentioned UDF module or a hardware (drive/bus) related module. I guess with this drive you mean the drive in the other box? Otherwise the drive could be faulty. Have you checked the cables? I have not checked the hardware, but I did burn the image on another system with another drive and mounted it with the drive in question and as I said, even though I got those errors, the mount was successful. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] having problems getting burned cds to work
Neil Bothwick n...@digimed.co.uk wrote: On Tue, 26 May 2015 01:47:50 -0400, cov...@ccs.covici.com wrote: 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. But its an iso, and I can mount the .iso via loop, why should it care about udf support and I think udf is trying to read the cd, because its apparently not thinking its an iso9660 file system. Just because it is an image file with a .iso extension does not mean it uses the iso9600 filesystem. DVDs do use UDF. Can you mount it with -t udf. What does isoinfo -d -i /path/to/file.iso say about it? No, udf says no partition or some such, and iso-info gives ISO 9660 image: /audio/grml/grml64-full_2014.11.iso Preparer: XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2, LIBISOFS-1.2.2, LIBBURN-1.2.2 Publisher : grml-live | grml.org Volume : grml64-full 2014.11 Joliet Level: 3 -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] having problems getting burned cds to work
On Tue, 26 May 2015 06:17:03 -0400, cov...@ccs.covici.com wrote: What does isoinfo -d -i /path/to/file.iso say about it? No, udf says no partition or some such, and iso-info gives ISO 9660 image: /audio/grml/grml64-full_2014.11.iso Preparer: XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2, LIBISOFS-1.2.2, LIBBURN-1.2.2 Publisher : grml-live | grml.org Volume : grml64-full 2014.11 Joliet Level: 3 isoinfo, not iso-info. The former gives more information. -- Neil Bothwick Every morning is the dawn of a new error... pgpPzypRRx7rn.pgp Description: OpenPGP digital signature
Re: [gentoo-user] having problems getting burned cds to work
On Tuesday 26 May 2015 13:21:56 Neil Bothwick wrote: On Tue, 26 May 2015 06:17:03 -0400, cov...@ccs.covici.com wrote: What does isoinfo -d -i /path/to/file.iso say about it? No, udf says no partition or some such, and iso-info gives ISO 9660 image: /audio/grml/grml64-full_2014.11.iso Preparer: XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2, LIBISOFS-1.2.2, LIBBURN-1.2.2 Publisher : grml-live | grml.org Volume : grml64-full 2014.11 Joliet Level: 3 isoinfo, not iso-info. The former gives more information. Also, confirm that a)the downloaded iso file and b)the CD is not corrupt. For the iso file run: sha1sum somefile.iso and check that it matches the sha1 checksum published at the website. For the CD run: ls -l somefile.iso to find how big the is file, for example 650,000,000 bytes. Then run: dd if=/dev/sr0 bs=2048 count=65000 | sha1sum (This is necessary to exclude any code after the end of the iso content which the cdrecord will write on the CD to close the recording session). Even if a sha1 or md5 hash is not available from the website, you can at least compare the two hashes between the iso file and the CD. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] having problems getting burned cds to work
Mick michaelkintz...@gmail.com wrote: On Tuesday 26 May 2015 13:21:56 Neil Bothwick wrote: On Tue, 26 May 2015 06:17:03 -0400, cov...@ccs.covici.com wrote: What does isoinfo -d -i /path/to/file.iso say about it? No, udf says no partition or some such, and iso-info gives ISO 9660 image: /audio/grml/grml64-full_2014.11.iso Preparer: XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2, LIBISOFS-1.2.2, LIBBURN-1.2.2 Publisher : grml-live | grml.org Volume : grml64-full 2014.11 Joliet Level: 3 isoinfo, not iso-info. The former gives more information. Also, confirm that a)the downloaded iso file and b)the CD is not corrupt. For the iso file run: sha1sum somefile.iso and check that it matches the sha1 checksum published at the website. For the CD run: ls -l somefile.iso to find how big the is file, for example 650,000,000 bytes. Then run: dd if=/dev/sr0 bs=2048 count=65000 | sha1sum (This is necessary to exclude any code after the end of the iso content which the cdrecord will write on the CD to close the recording session). Even if a sha1 or md5 hash is not available from the website, you can at least compare the two hashes between the iso file and the CD. OK, thanks I will check, but I did a recursive diff on the iso and the mounted cd and got no differences. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
[gentoo-user] having problems getting burned cds to work
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. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] having problems getting burned cds to work
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. Dale :-) :-)
Re: [gentoo-user] having problems getting burned cds to work
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. But its an iso, and I can mount the .iso via loop, why should it care about udf support and I think udf is trying to read the cd, because its apparently not thinking its an iso9660 file system. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] having problems getting burned cds to work
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. ;-)
