Re: [gentoo-user] Damaged CD medium

[Fernando Rodriguez <frodriguez.developer@outlook.com>]

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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

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