[dm-crypt] dmsetup or cryptsetup hangs in the initrd
arno at wagner.name
Mon Oct 19 08:21:22 CEST 2015
First, we are not your debugging service. I do offer
professional security consulting which includes this
type of engineering, and it runs $250/hour and you have
to order at least a day.
That said, you can narrow down "it hangs" by running
cryptsetup with strace. Do not use a secret password
for that as it will show up in the trace data. The last
operation you see is the one that hangs. If it is still
unclear to you what the problem is, post the trace here
(but remember the bit about the non-secret password!).
On Sat, Oct 17, 2015 at 16:24:13 CEST, Sean MacLennan wrote:
> In RedHat 7 I am trying to setup a partition with dmsetup. I have attached
> a tarball that includes three files:
> * go.sh is a simple script to install everything
> * install is the dracut module install
> * 95dmcrypt.sh is the file I want to run at boot time
> All the files are small, I can send them inline if preferred.
> Obviously, this has all been stripped down to make it as simple as
> possible. Sorry for the hard coding. If you want to test it, you need to
> provide a /dev/sdb1 partition that is at least 2G. If you comment out the
> `exit 0' in go.sh it will setup the partition for you.
> Note that if 95dmcrypt.sh has either the dmsetup or the 2 cryptsetup lines
> commented in, it will hang the machine.
> I am hoping I have just put something in the wrong place. pre-mount is
> where we previously ran the script from. Note that we have dmsetup working
> under RedHat 6.
> dm-crypt mailing list
> dm-crypt at saout.de
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno at wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
A good decision is based on knowledge and not on numbers. -- Plato
If it's in the news, don't worry about it. The very definition of
"news" is "something that hardly ever happens." -- Bruce Schneier
More information about the dm-crypt