如何把光碟直接抓下來做成iso

[kcqp5ovx]

如題.

我查了半天只知道mkisofs能把目錄做成iso.還是不知道如何把整張光碟直接做成iso,請各位幫個忙,謝謝.

[企鵝狂]

http://www.linuxcommand.org/man_pages/readcd1.html

用readcd

[Cheung]

請愛用 dd

dd if=/dev/cdrom of=xxx.iso bs=2048

[企鵝狂]

http://milwaukeelug.org/LinuxTipsAndTricks

我沒有用過,不過按照這裡的說法,dd可能會有一些問題。

I used the above procedure because dd kept terminating with errors when it got to the end of the CD. There is a design defect in the Linux CD ROM driver that causes it to read ahead past the last block on the CD.

The above process no longer works for me with two of my newest drives. The default padding apparently isn't always enough to reliably prevent the Linux read-ahead bug from happening. It seems that the best way to read back an entire CD image is to use readcd instead of dd. readcd uses raw device I/O, so it does not trigger the read-ahead logic used by the buffered I/O.

也可能現在的cdrom driver沒有這個問題了,你可以都試試看。

[阿信]

http://milwaukeelug.org/LinuxTipsAndTricks

我沒有用過,不過按照這裡的說法,dd可能會有一些問題。

I used the above procedure because dd kept terminating with errors when it got to the end of the CD. There is a design defect in the Linux CD ROM driver that causes it to read ahead past the last block on the CD.

The above process no longer works for me with two of my newest drives. The default padding apparently isn't always enough to reliably prevent the Linux read-ahead bug from happening. It seems that the best way to read back an entire CD image is to use readcd instead of dd. readcd uses raw device I/O, so it does not trigger the read-ahead logic used by the buffered I/O.

也可能現在的cdrom driver沒有這個問題了,你可以都試試看。

wow...感謝企鵝狂兄提供的資訊，我用DD很久了，想不到會有出錯的可能。

[kcqp5ovx]

謝謝. readcd 滿好用的.

[mason]

dd 用在複製 video DVD 或是 music cd 的時候會有很高的機率遇到 I/O error.

[kcqp5ovx]

補充一下，要用readcd得安裝cdrecord這個package.