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Old 09-14-2004, 02:11 PM   #1
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Registered: Apr 2003
Location: nottingham england
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dm-crypt encrypted filesystem on a CD-ROM

i used losetup to make /dev/loop1 point to a 350 Megabyte file.
i then used dm-crypt and the cryptsetup to make an encrypted map device,
fomated it as reiserfs.

this filesystem works fine for reading and writing... however, when i had finished, i burned the 350 Meg file as a iso image directly to a cd.

however i cannot use the cdrom as a device in dm-crypt, i get an unknown parameter error. if i set a loop1 pointing to the cdrom drive then the dm-crypt device is made sucessfully, but it cannot be mounted.. bad filesystem error !

any idea whats gone wrong ?!


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