Bootlog errors - whats happening? Why? Is it normal? Why/why not?

Closed Posted Oct 18, 2013 Paid on delivery
Closed Paid on delivery

1. What does it do below and is it normal - is it IPfire code that

asks computer to read from CD-ROM drive - even though Ipfire is booting

from a USB drive?

1.1 To me it looks like its trying to read or write something

from some blocks from CD-Rom drive. But why does it try to do so?

1.2 And, where exactly does the command come from that asks

that it should read/write from those specific blocks?

1.3 Does that command come from BIOS specifically that it shoudl read/write

those specific blocks?

1.4 What data or file names do these blocks below contain?

Buffer I/O error on device sr0, logical block 2096896

Buffer I/O error on device sr0, logical block 2096897

Buffer I/O error on device sr0, logical block 2096898

Buffer I/O error on device sr0, logical block 2096899

Buffer I/O error on device sr0, logical block 2096900

Buffer I/O error on device sr0, logical block 2096901

Buffer I/O error on device sr0, logical block 2096902

Buffer I/O error on device sr0, logical block 2096903

1.5 If this is some media error (bad block) - why does it happen on

more than 6 different new USB flash drives? And why that place/area all the time?

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sr0: CDROM (ioctl) error, command: cdb[0]=0x43 43 00 00 00 00 00 00 00 0c 00

sr: Sense Key : 0x4 [current]

sr: ASC=0x40 ASCQ=0x0

sr 1:0:0:0: [sr0] Unhandled sense code

sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08

sr 1:0:0:0: [sr0] Sense Key : 0x4 [current]

sr 1:0:0:0: [sr0] ASC=0x40 ASCQ=0x0

sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 07 ff c0 00 00 02 00

end_request: I/O error, dev sr0, sector 2096896

Buffer I/O error on device sr0, logical block 2096896

Buffer I/O error on device sr0, logical block 2096897

Buffer I/O error on device sr0, logical block 2096898

Buffer I/O error on device sr0, logical block 2096899

Buffer I/O error on device sr0, logical block 2096900

Buffer I/O error on device sr0, logical block 2096901

Buffer I/O error on device sr0, logical block 2096902

Buffer I/O error on device sr0, logical block 2096903

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] unaligned transfer

sr 1:0:0:0: [sr0] Unhandled sense code

sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08

sr 1:0:0:0: [sr0] Sense Key : 0x4 [current]

sr 1:0:0:0: [sr0] ASC=0x40 ASCQ=0x0

sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 20 00

end_request: I/O error, dev sr0, sector 0

Buffer I/O error on device sr0, logical block 0

Buffer I/O error on device sr0, logical block 1

sr 1:0:0:0: [sr0] unaligned transfer

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2. What doe this code/command do?

"sr 1:0:0:0: [sr0] unaligned transfer"

2.1 From where to where is this transfer happening from?

2.2 Is the transfer happening from the computer and out to/thru network or internet?

3. What does this command do?

3.1

sr0: CDROM (ioctl) error, command: cdb[0]=0x43 43 00 00 00 00 00 00 00 0c 00

3.2

CDB: cdb[0]=0x28: 28 00 00 07 ff c0 00 00 02 00

3.3

cdb[0]=0x43 43 00 00 00 00 00 00 00 0c 00

3.4

CDB: cdb[0]=0x28: 28 00 00 00 00 84 00 00 04 00

3.5

cdb[0]=0x28: 28 00 00 07 ff c0 00 00 02 00

3.6

cdb[0]=0x43 43 00 00 00 00 00 00 00 0c 00

3.7

CDB: cdb[0]=0x28: 28 00 00 00 00 84 00 00 04 00

3.8

CDB: cdb[0]=0x28: 28 00 00 00 00 01 00 00 01 00

4. How many bytes or kb is 1 "logical block"?

(when i check with gparted it reports in "sectors" and not "blocks")

5. What is the purpose of this 2-line command below? Is it normal that this

is done? If so, why?

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acer_wmi: Brightness must be controlled by generic video driver

input: Acer WMI hotkeys as /devices/virtual/input/input6

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Perl

Project ID: #5040786

About the project

1 proposal Remote project Active Nov 24, 2013

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martale

Hello, the kernel messages about 'sr0' (CD-ROM) drive are not totally normal: they indicate that the kernel is not able to read the CD-ROM disk, probably because it is corrupted (the CD-ROM disk, not the kernel!). So, More

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