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How to determince CD is bootable or not

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# 1  
Old 03-07-2009
How to determine CD is bootable or not


How can i determine the /dev/scd0 is bootable or not from command-line with single-line command according to ElTorito specification or something else?


Last edited by oduth; 03-07-2009 at 08:36 AM..
# 2  
Old 03-07-2009
The isoinfo command can be used to extract that kind of data from iso images, if you don't have it, it comes with the cdrecord suite.
# 3  
Old 03-13-2009
You can also use dd to determine if the CD/DVD is bootable i.e.


bchex=`dd if=${DEVICE} skip=34887 bs=1 count=2 conv=swab 2>/dev/null | xxd | cut -d" " -f2`

bcdec=`printf "%d" 0x${bchex}`

bootable=`dd if=${DEVICE}  bs=1 skip=$(( bcdec * 2048 + 32))  count=1  2>/dev/null | xxd | cut -d" " -f2`

if [[ $bootable = 88 ]]; then
   [ $VERBOSE ] && printf "Bootable CDROM\n"
   exit 0
   [ $VERBOSE ] && printf "Not a bootable CDROM\n"
   exit 1

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