Re: [gentoo-user] Damaged CD medium
Mick michaelkintz...@gmail.com wrote: Hi All, I was given a CD with some pictures, but I am not able to mount it. This is what dmesg reveals: [ 7791.880206] sr 1:0:0:0: [sr0] [ 7791.880211] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7791.880215] sr 1:0:0:0: [sr0] [ 7791.880217] Sense Key : Hardware Error [current] [ 7791.880224] sr 1:0:0:0: [sr0] [ 7791.880229] Add. Sense: Timeout on logical unit [ 7791.880233] sr 1:0:0:0: [sr0] CDB: [ 7791.880236] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7791.880252] blk_update_request: I/O error, dev sr0, sector 0 [...] I tried on different PCs and I am getting the same error. Shall I Have you tried it with different CD drives or have you used always the same (external) drive? If you are testing several CD drives you maybe will find one that is able to read the damaged CD. forget about it, or is there some means by which I can recover the files on it? This depends on how the CD is damaged. If it is damaged by scratches then you maybe can polish them away. Many years ago I've seen CD polish sets available in some online shop, but I never tried this out. If there are no scratches and it is a self burned CD then I fear you will have no chance to restore the data. I don't know if there is a way to restore the data with some special software program. Maybe you should search for that on google. Good luck. -- Regards wabe
Re: [gentoo-user] Damaged CD medium
On Friday 13 Mar 2015 17:10:36 waben...@gmail.com wrote: Mick michaelkintz...@gmail.com wrote: Hi All, I was given a CD with some pictures, but I am not able to mount it. This is what dmesg reveals: [ 7791.880206] sr 1:0:0:0: [sr0] [ 7791.880211] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7791.880215] sr 1:0:0:0: [sr0] [ 7791.880217] Sense Key : Hardware Error [current] [ 7791.880224] sr 1:0:0:0: [sr0] [ 7791.880229] Add. Sense: Timeout on logical unit [ 7791.880233] sr 1:0:0:0: [sr0] CDB: [ 7791.880236] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7791.880252] blk_update_request: I/O error, dev sr0, sector 0 [...] I tried on different PCs and I am getting the same error. Shall I Have you tried it with different CD drives or have you used always the same (external) drive? If you are testing several CD drives you maybe will find one that is able to read the damaged CD. Each PC has its own (internal) drive. No success so far. :-( forget about it, or is there some means by which I can recover the files on it? This depends on how the CD is damaged. If it is damaged by scratches then you maybe can polish them away. Many years ago I've seen CD polish sets available in some online shop, but I never tried this out. If there are no scratches and it is a self burned CD then I fear you will have no chance to restore the data. I don't know if there is a way to restore the data with some special software program. Maybe you should search for that on google. Good luck. David mentioned in his post that there are products to clean and polish the plastic surface (thanks David!) I can't see any significant scratches and I tried cleaning it with spirit to remove any grease or dirt from its surface. I will try to ask the person who gave it to me to use a different make of CD next time, but this could take some time. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Damaged CD medium
On Friday, March 13, 2015 4:30:59 PM Mick wrote: Hi All, I was given a CD with some pictures, but I am not able to mount it. This is what dmesg reveals: [ 7791.880206] sr 1:0:0:0: [sr0] [ 7791.880211] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7791.880215] sr 1:0:0:0: [sr0] [ 7791.880217] Sense Key : Hardware Error [current] [ 7791.880224] sr 1:0:0:0: [sr0] [ 7791.880229] Add. Sense: Timeout on logical unit [ 7791.880233] sr 1:0:0:0: [sr0] CDB: [ 7791.880236] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7791.880252] blk_update_request: I/O error, dev sr0, sector 0 [ 7800.424417] sr 1:0:0:0: [sr0] [ 7800.424422] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7800.424427] sr 1:0:0:0: [sr0] [ 7800.424429] Sense Key : Hardware Error [current] [ 7800.424436] sr 1:0:0:0: [sr0] [ 7800.424440] Add. Sense: Timeout on logical unit [ 7800.424445] sr 1:0:0:0: [sr0] CDB: [ 7800.424447] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7800.424463] blk_update_request: I/O error, dev sr0, sector 0 [ 7800.424468] Buffer I/O error on dev sr0, logical block 0, async page read [ 7809.051719] sr 1:0:0:0: [sr0] [ 7809.051725] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7809.051729] sr 1:0:0:0: [sr0] [ 7809.051731] Sense Key : Hardware Error [current] [ 7809.051738] sr 1:0:0:0: [sr0] [ 7809.051743] Add. Sense: Timeout on logical unit [ 7809.051748] sr 1:0:0:0: [sr0] CDB: [ 7809.051750] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7809.051766] blk_update_request: I/O error, dev sr0, sector 0 [ 7809.051771] Buffer I/O error on dev sr0, logical block 0, async page read [ 7817.681141] sr 1:0:0:0: [sr0] [ 7817.681146] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7817.681150] sr 1:0:0:0: [sr0] [ 7817.681152] Sense Key : Hardware Error [current] [ 7817.681159] sr 1:0:0:0: [sr0] [ 7817.681164] Add. Sense: Timeout on logical unit [ 7817.681168] sr 1:0:0:0: [sr0] CDB: [ 7817.681170] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7817.681187] blk_update_request: I/O error, dev sr0, sector 0 [ 7817.681192] Buffer I/O error on dev sr0, logical block 0, async page read I tried on different PCs and I am getting the same error. Shall I forget about it, or is there some means by which I can recover the files on it? You can try sticking it into a DVD player and see if it plays. Also check that all CD/DVD Filesystem options (including MS extensions) are enabled on your kernel. -- Fernando Rodriguez signature.asc Description: This is a digitally signed message part.
[gentoo-user] Damaged CD medium
Hi All, I was given a CD with some pictures, but I am not able to mount it. This is what dmesg reveals: [ 7791.880206] sr 1:0:0:0: [sr0] [ 7791.880211] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7791.880215] sr 1:0:0:0: [sr0] [ 7791.880217] Sense Key : Hardware Error [current] [ 7791.880224] sr 1:0:0:0: [sr0] [ 7791.880229] Add. Sense: Timeout on logical unit [ 7791.880233] sr 1:0:0:0: [sr0] CDB: [ 7791.880236] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7791.880252] blk_update_request: I/O error, dev sr0, sector 0 [ 7800.424417] sr 1:0:0:0: [sr0] [ 7800.424422] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7800.424427] sr 1:0:0:0: [sr0] [ 7800.424429] Sense Key : Hardware Error [current] [ 7800.424436] sr 1:0:0:0: [sr0] [ 7800.424440] Add. Sense: Timeout on logical unit [ 7800.424445] sr 1:0:0:0: [sr0] CDB: [ 7800.424447] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7800.424463] blk_update_request: I/O error, dev sr0, sector 0 [ 7800.424468] Buffer I/O error on dev sr0, logical block 0, async page read [ 7809.051719] sr 1:0:0:0: [sr0] [ 7809.051725] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7809.051729] sr 1:0:0:0: [sr0] [ 7809.051731] Sense Key : Hardware Error [current] [ 7809.051738] sr 1:0:0:0: [sr0] [ 7809.051743] Add. Sense: Timeout on logical unit [ 7809.051748] sr 1:0:0:0: [sr0] CDB: [ 7809.051750] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7809.051766] blk_update_request: I/O error, dev sr0, sector 0 [ 7809.051771] Buffer I/O error on dev sr0, logical block 0, async page read [ 7817.681141] sr 1:0:0:0: [sr0] [ 7817.681146] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 7817.681150] sr 1:0:0:0: [sr0] [ 7817.681152] Sense Key : Hardware Error [current] [ 7817.681159] sr 1:0:0:0: [sr0] [ 7817.681164] Add. Sense: Timeout on logical unit [ 7817.681168] sr 1:0:0:0: [sr0] CDB: [ 7817.681170] Read(10): 28 00 00 00 00 00 00 00 02 00 [ 7817.681187] blk_update_request: I/O error, dev sr0, sector 0 [ 7817.681192] Buffer I/O error on dev sr0, logical block 0, async page read I tried on different PCs and I am getting the same error. Shall I forget about it, or is there some means by which I can recover the files on it? -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Damaged CD medium
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 13 Mar 2015 16:30:59 +, Mick (michaelkintz...@gmail.com) wrote about [gentoo-user] Damaged CD medium (in 201503131631.02862.michaelkintz...@gmail.com): [snip] I tried on different PCs and I am getting the same error. Shall I forget about it, or is there some means by which I can recover the files on it? I bought a CD/DVD cleaner from Maplins a few years ago and it recovers damaged discs quite nicely. It uses an abrasive to clean and polish the surface, so it can be used only a limited number of times on any given disc -- it will eventually grind through the plastic to the foil. The nearest I could find on the Web, also from Maplins, was this: http://www.maplin.co.uk/p/cddvd-cleaner-and-restorer-polish-qm13p It's visually different from the one I bought, and appears to be rather less aggressive. - -- Regards, Dave [RLU #314465] *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* dwn...@ntlworld.com (David W Noon) *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* -BEGIN PGP SIGNATURE- Version: GnuPG v2 iEYEARECAAYFAlUDFrIACgkQRQ2Fs59Psv+MfgCgmZZESWyTwVOlFjBSzyQoXqO/ LBIAoMHClLFAKHUVg/S01kCCxIE0TMxc =3GJD -END PGP SIGNATURE-
