Louis Lam wrote: > > hi, > > I was able to use ppdd to get an encrypted root file system and swap > partition. Both the root file system and the swap were formatted with a > blocksize of 1024 as suggested. > > Is there anyone in this list who is able to get encrypted root and swap that > are based on blocksize of 4096? <snip> I hope this message from the ppdd mailing list answers your question, but probably not as you wished: "Michael H. Warfield" wrote: > > On Fri, Jun 02, 2000 at 09:29:32AM +1000, Bob Hepple wrote: > > Nathaniel Daw wrote: > > > > hey, > > > > I'm new to the list but have been watching several days for the answer > > > to this probably common question: I'm thinking of bumping my kernel up > > > to a 2.3/2.4 prerelease & I want to bring my encrypted disks with > > > me. I was planning on seeing if I could get the old ppdd patches to > > > apply, but I wonder if (a) anyone has already done this work, or (b) > > > anyone knows of any major gotchas that will bite me if I try to do > > > this. Should it go smoothly? > > > For what it's worth, I did 2.2.14 with no problems - except I can't > > mount partitions greater than 500Mb - is this a known problem. > > It's probably an RTFM, but it's not obvious. Partitions greater > than about 500Meg are going to get build with a block size other then > 1024. They will most likely end with with a block size of 4096 or 8192. > The doco's are pretty clear that ppdd is busted for anything other than > block size of 1024 (THIS NEEDS TO BE FIXED!). You have to rebuild the > filesystem (mke2fs) with a block size of 1024. WARNING - this WILL destroy > everything on the filesystem! > > My laptop is even worse. The 12Gig drive insists on a transfer > size of 4096 to and from the IDE drive. That means I have to rebuild ALL > of my partitions for 1024 block size, but the drive itself is NOT 1024, > it's 4096. Then I have to specify a transfer block size of 4096 when > initializing and starting ppdd. Sigh... > > If you are going to use the block size option to the ppdd utilities > be forewarned that there are parsing bugs. The utilities expect exact > parameter counts and that screws up depending on whether or not you combine > parameters in the way the program expects. > > > I also used the USB patches from www.linux-usb.org with no conflict, so > > if you only want 2.3/4 for USB you might be able to scrape by. > > > > Bob > > > > -- > > Bob Hepple > > mailto:bhepple@xxxxxxxxxx > > Mike > -- > Michael H. Warfield | (770) 985-6132 | mhw@xxxxxxxxxxxx > (The Mad Wizard) | (770) 331-2437 | http://www.wittsend.com/mhw/ > NIC whois: MHW9 | An optimist believes we live in the best of all > PGP Key: 0xDF1DD471 | possible worlds. A pessimist is sure of it! Marc -- Marc Mutz <Marc@xxxxxxxx> http://EncryptionHOWTO.sourceforge.net/ University of Bielefeld, Dep. of Mathematics / Dep. of Physics PGP-keyID's: 0xd46ce9ab (RSA), 0x7ae55b9e (DSS/DH) Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
