Other Help Topics :: create iso image from a cd or dvd



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dd: reading '/dev/cdrom': Input/output error
It sounds like there is a problem reading the device. It could be a faulty disk, or maybe you mounted the disk? I have never tested this, but I think it's possible that mounting the CD might prevent a direct read.
bear with me on this one ...
launched a menu item called system stats
it put a stats.txt file in /home/dsl
opened the file, listing follows below
there may be a conflict with the cdrom as opposed to a problem ith the cdrom
running dsl-4.2.3, booting from floppy to usb
usb created with menu item USB-HDD, which created sda1 and sda2 that holds the boot image
boot:  dsl fromusb (from floppy)
boot:  ds fromhd=/dev/sda2  (from livecd)
stats.txt lists /dev/sda2 as /cdrom
?is this causing dd to fail?

ps, ?do you know where the shell script is located that creates (1) USB-HDD and (2) stats.txt so that i can view them?

Filesystem            Size  Used Avail Use% Mounted on
/dev/root             3.0M  609K  2.5M  20% /
/dev/sda2              52M   49M  111K 100% /cdrom
/dev/cloop            115M  115M     0 100% /KNOPPIX
/ramdisk              377M   45M  332M  12% /ramdisk
unionfs               492M  160M  332M  33% /KNOPPIX/bin
unionfs               380M   46M  335M  12% /dev
unionfs               380M   46M  335M  12% /etc
unionfs               492M  160M  332M  33% /KNOPPIX/lib
unionfs               492M  160M  332M  33% /KNOPPIX/sbin
unionfs               492M  160M  332M  33% /KNOPPIX/usr
unionfs               377M   45M  332M  12% /ramdisk/var
/dev/sda1             3.8G   19M  3.7G   1% /mnt/sda1
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stats.txt lists /dev/sda2 as /cdrom
?is this causing dd to fail?
No, /cdrom is just a DSL frugal convention, and is a just a mount point... it has nothing to do with /dev/cdrom

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ps, ?do you know where the shell script is located that creates (1) USB-HDD and (2) stats.txt so that i can view them?
You can search the menu files, i.e. with `grep -i "\(usb\|stats\)" ~/.fluxbox/menu`

What's the output of that cdrecord command?
output from command cdrecord -scanbus

Cdrecord-ProDVD-ProBD-Clone 2.01.01a36 (i686-pc-linux-gnu) Copyright © 1995-2007 Jörg Schilling
Using libscg version 'schily-0.9'.
scsibus0:
0,0,0  0) 'MITSUMI ' 'CD-ROM SR243T   ' 'L01H' Removable CD-ROM
0,1,0  1) *
0,2,0  2) *
0,3,0  3) *
0,4,0  4) *
0,5,0  5) *
0,6,0  6) *
0,7,0  7) *

original here.