[dm-crypt] Cryptsetup using loop device makes it stop

[dm-crypt] Cryptsetup using loop device makes it stop

[Clément Hertling (Wxcafé)]

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Hi, i'm trying to use cryptsetup to create an encrypted image file.
So i luksFormat-ed it on my server, everything went fine, and on that
server i can mount it without a problem.
But on my laptop (same distro, different kernel), there's something that
doesn't work. Here's the output i get 

$ sudo cryptsetup luksOpen crypto.img crypto --debug

# cryptsetup 1.4.3 processing "cryptsetup luksOpen crypto.img crypto --debug"
# Running command luksOpen.
# Locking memory.
# Allocating crypt device crypto.img context.
# Not a block device, using free loop device /dev/loop0.
# Trying to open and read device /dev/loop0.
Cannot read device /dev/loop0.
# Unlocking memory.
Command failed with code 15: Block device required


And these are some command i tried to fix the problem :

$ sudo losetup -f
/dev/loop0
$ sudo ls -lh /dev/loop0
brw-rw---T 1 root disk 7, 0 May 27 08:00 /dev/loop0
$ sudo losetup -d /dev/loop0
loop: can't delete device /dev/loop0: No such device or address

I know this might not be the best place to ask, because this looks like
it's more of a kernel or loopdev problem, but i don't really know where
to address this question, so I'm sending this there in hope you'll be
able to help.
Thanks for your awesome work anyway, and thanks for your possible help.


-- 

Clément Hertling (Wxcafe)
------      ------
Sent from my netbook's cyberspace


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Re: [dm-crypt] Cryptsetup using loop device makes it stop

[.. ink ..]

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you are probably having a problem with loop device module.

It doesnt look like it was build in the kernel and if its build as a
module,it is not loaded.

run below command first and then try to reopen the volume normally and see
if it will work

sudo modprobe loop

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Re: [dm-crypt] Cryptsetup using loop device makes it stop

[Clément Hertling (Wxcafé)]

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Well i'd love this to work, but i have that in my .config 

CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y

and it still doesn't work. I guess loopdev is in my kernel.

-- 

Clément Hertling (Wxcafé)
------      ------
Sent from my desktop's cyberspace

On 13-05 02:31, .. ink .. wrote:
>    you are probably having a problem with loop device module.
> 
>    It doesnt look like it was build in the kernel and if its build as a
>    module,it is not loaded.
> 
>    run below command first and then try to reopen the volume normally and see
>    if it will work
> 
>    sudo modprobe loop

> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt


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Re: [dm-crypt] Cryptsetup using loop device makes it stop

[Milan Broz]

On 05/27/2013 12:56 PM, Clément Hertling (Wxcafé) wrote:
> Well i'd love this to work, but i have that in my .config 
> 
> CONFIG_BLK_DEV_LOOP=y
> CONFIG_BLK_DEV_CRYPTOLOOP=y
> 
> and it still doesn't work. I guess loopdev is in my kernel.

cryptoloop option is not important, the first one is enough.

What is your kernel version and arch?
(I should add this to cryptsetup debug output :)

1) try it in two steps:

losetup /dev/loop0 crypto.img
cryptsetup luksOpen /dev/loop0 crypto

Does it work this way?

2) try last stable cryptsetup 1.6.1, does it help?

If it still doesn't work, please use cryptsetup 1.6.1
and send (me or to the list) output of:

uname -a
lsblk
dmsetup table
strace cryptsetup luksOpen crypto.img crypto --debug

Thanks,
Milan

Re: [dm-crypt] Cryptsetup using loop device makes it stop

[Clément Hertling (Wxcafé)]

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On 13-05 16:25, Milan Broz wrote:
> On 05/27/2013 12:56 PM, Clément Hertling (Wxcafé) wrote:
> > Well i'd love this to work, but i have that in my .config 
> > 
> > CONFIG_BLK_DEV_LOOP=y
> > CONFIG_BLK_DEV_CRYPTOLOOP=y
> > 
> > and it still doesn't work. I guess loopdev is in my kernel.
> 
> cryptoloop option is not important, the first one is enough.
> 
> What is your kernel version and arch?
> (I should add this to cryptsetup debug output :)
> 
> 1) try it in two steps:
> 
> losetup /dev/loop0 crypto.img
> cryptsetup luksOpen /dev/loop0 crypto
> 
> Does it work this way?
>

So i tried doing it this way, but no luck, I'm getting the same error
with cryptsetup.

> 2) try last stable cryptsetup 1.6.1, does it help?
> 

After trying with 1.6.1, i'm getting a different error :

# cryptsetup 1.6.1 processing "cryptsetup luksOpen crypto.img crypto
# --debug"
# Running command open.
# Locking memory.
# Installing SIGINT/SIGTERM handler.
# Unblocking interruption on signal.
# Allocating crypt device crypto.img context.
# Trying to open and read device crypto.img.
# Initialising device-mapper backend library.
# Trying to load LUKS1 crypt type from device crypto.img.
# Crypto backend (gcrypt 1.5.0) initialized.
# Reading LUKS header of size 1024 from device crypto.img
# Releasing crypt device crypto.img context.
# Releasing device-mapper backend.
# Unlocking memory.
Command failed with code 5: Input/output error

> If it still doesn't work, please use cryptsetup 1.6.1
> and send (me or to the list) output of:
> 
> uname -a

Linux nuada-airgetlam 3.9.0-wxcafe+ #20 SMP Mon May 27 12:37:08 CEST
2013 x86_64 GNU/Linux
( it's my custom kernel )
> lsblk

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 232.9G  0 disk 
├─sda1   8:1    0  14.7G  0 part /
├─sda2   8:2    0   1.1G  0 part /boot
├─sda3   8:3    0  20.5G  0 part /usr
└─sda4   8:4    0 196.6G  0 part 

> dmsetup table

No devices found

> strace cryptsetup luksOpen crypto.img crypto --debug

execve("/usr/sbin/cryptsetup", ["cryptsetup", "luksOpen", "crypto.img", "crypto", "--debug"], [/* 20 vars */]) = 0
brk(0)                                  = 0x24b5000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad9718000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/home/wxcafe/local/opt/lib/tls/x86_64/libcryptsetup.so.4", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/wxcafe/local/opt/lib/tls/x86_64", 0x7fff4c5dc780) = -1 ENOENT (No such file or directory)
open("/home/wxcafe/local/opt/lib/tls/libcryptsetup.so.4", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/wxcafe/local/opt/lib/tls", 0x7fff4c5dc780) = -1 ENOENT (No such file or directory)
open("/home/wxcafe/local/opt/lib/x86_64/libcryptsetup.so.4", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/wxcafe/local/opt/lib/x86_64", 0x7fff4c5dc780) = -1 ENOENT (No such file or directory)
open("/home/wxcafe/local/opt/lib/libcryptsetup.so.4", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220J\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=598792, ...}) = 0
mmap(NULL, 2239072, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad92d6000
mprotect(0x7ffad92f8000, 2093056, PROT_NONE) = 0
mmap(0x7ffad94f7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x21000) = 0x7ffad94f7000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libpopt.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=93235, ...}) = 0
mmap(NULL, 93235, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7ffad9701000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libpopt.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P(\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=52296, ...}) = 0
mmap(NULL, 2147568, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad90c9000
mprotect(0x7ffad90d4000, 2097152, PROT_NONE) = 0
mmap(0x7ffad92d4000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x7ffad92d4000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\33\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1741232, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad9700000
mmap(NULL, 3853376, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad8d1c000
mprotect(0x7ffad8ec0000, 2093056, PROT_NONE) = 0
mmap(0x7ffad90bf000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1a3000) = 0x7ffad90bf000
mmap(0x7ffad90c5000, 15424, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffad90c5000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libuuid.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libuuid.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\27\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=18840, ...}) = 0
mmap(NULL, 2113976, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad8b17000
mprotect(0x7ffad8b1b000, 2093056, PROT_NONE) = 0
mmap(0x7ffad8d1a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7ffad8d1a000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libdevmapper.so.1.02.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libdevmapper.so.1.02.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340r\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=229808, ...}) = 0
mmap(NULL, 2329296, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad88de000
mprotect(0x7ffad8913000, 2093056, PROT_NONE) = 0
mmap(0x7ffad8b12000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x34000) = 0x7ffad8b12000
mmap(0x7ffad8b16000, 2768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffad8b16000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libgcrypt.so.11", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libgcrypt.so.11", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\207\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=516128, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad96ff000
mmap(NULL, 2612480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad8660000
mprotect(0x7ffad86da000, 2097152, PROT_NONE) = 0
mmap(0x7ffad88da000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7a000) = 0x7ffad88da000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260f\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=126232, ...}) = 0
mmap(NULL, 2226160, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad8440000
mprotect(0x7ffad845e000, 2093056, PROT_NONE) = 0
mmap(0x7ffad865d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1d000) = 0x7ffad865d000
mmap(0x7ffad865f000, 2032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffad865f000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libudev.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libudev.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0004\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=59992, ...}) = 0
mmap(NULL, 2155216, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad8231000
mprotect(0x7ffad823e000, 2097152, PROT_NONE) = 0
mmap(0x7ffad843e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd000) = 0x7ffad843e000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libgpg-error.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libgpg-error.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300\t\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=14112, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad96fe000
mmap(NULL, 2109384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad802e000
mprotect(0x7ffad8031000, 2093056, PROT_NONE) = 0
mmap(0x7ffad8230000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7ffad8230000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\16\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=14640, ...}) = 0
mmap(NULL, 2109720, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad7e2a000
mprotect(0x7ffad7e2d000, 2093056, PROT_NONE) = 0
mmap(0x7ffad802c000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7ffad802c000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000#\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=31752, ...}) = 0
mmap(NULL, 2128888, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad7c22000
mprotect(0x7ffad7c29000, 2093056, PROT_NONE) = 0
mmap(0x7ffad7e28000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7ffad7e28000
close(3)                                = 0
open("/home/wxcafe/local/opt/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@l\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=130971, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad96fd000
mmap(NULL, 2208656, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffad7a06000
mprotect(0x7ffad7a1d000, 2093056, PROT_NONE) = 0
mmap(0x7ffad7c1c000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7ffad7c1c000
mmap(0x7ffad7c1e000, 13200, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffad7c1e000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad96fc000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad96fa000
arch_prctl(ARCH_SET_FS, 0x7ffad96fa800) = 0
mprotect(0x7ffad90bf000, 16384, PROT_READ) = 0
mprotect(0x7ffad7c1c000, 4096, PROT_READ) = 0
mprotect(0x7ffad7e28000, 4096, PROT_READ) = 0
mprotect(0x7ffad802c000, 4096, PROT_READ) = 0
mprotect(0x7ffad843e000, 4096, PROT_READ) = 0
mprotect(0x7ffad865d000, 4096, PROT_READ) = 0
mprotect(0x7ffad88da000, 4096, PROT_READ) = 0
mprotect(0x7ffad8b12000, 4096, PROT_READ) = 0
mprotect(0x7ffad8d1a000, 4096, PROT_READ) = 0
mprotect(0x7ffad92d4000, 4096, PROT_READ) = 0
mprotect(0x7ffad971a000, 4096, PROT_READ) = 0
munmap(0x7ffad9701000, 93235)           = 0
set_tid_address(0x7ffad96faad0)         = 15213
set_robust_list(0x7ffad96faae0, 0x18)   = 0
rt_sigaction(SIGRTMIN, {0x7ffad7a0c7a0, [], SA_RESTORER|SA_SIGINFO, 0x7ffad7a15210}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x7ffad7a0c820, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7ffad7a15210}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
brk(0)                                  = 0x24b5000
brk(0x24d6000)                          = 0x24d6000
statfs("/sys/fs/selinux", {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0, f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255, f_frsize=4096}) = 0
statfs("/sys/fs/selinux", {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0, f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255, f_frsize=4096}) = 0
stat("/sys/fs/selinux", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=1607632, ...}) = 0
mmap(NULL, 1607632, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7ffad9571000
close(3)                                = 0
open("/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2502, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad9717000
read(3, "# Locale name alias data base.\n#"..., 4096) = 2502
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0x7ffad9717000, 4096)            = 0
open("/home/wxcafe/local/opt/share/locale/en_US/LC_MESSAGES/cryptsetup.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/wxcafe/local/opt/share/locale/en/LC_MESSAGES/cryptsetup.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 4), ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad9717000
write(1, "# cryptsetup 1.6.1 processing \"c"..., 78# cryptsetup 1.6.1 processing "cryptsetup luksOpen crypto.img crypto --debug"
) = 78
write(1, "# Running command open.\n", 24# Running command open.
) = 24
write(1, "# Locking memory.\n", 18# Locking memory.
)     = 18
mlockall(MCL_CURRENT|MCL_FUTURE)        = 0
getpriority(PRIO_PROCESS, 0)            = 20
setpriority(PRIO_PROCESS, 0, 4294967278) = 0
write(1, "# Installing SIGINT/SIGTERM hand"..., 37# Installing SIGINT/SIGTERM handler.
) = 37
rt_sigaction(SIGINT, {0x404cf0, [], SA_RESTORER, 0x7ffad8d51310}, NULL, 8) = 0
rt_sigaction(SIGTERM, {0x404cf0, [], SA_RESTORER, 0x7ffad8d51310}, NULL, 8) = 0
write(1, "# Unblocking interruption on sig"..., 37# Unblocking interruption on signal.
) = 37
rt_sigprocmask(SIG_UNBLOCK, [INT TERM], NULL, 8) = 0
write(1, "# Allocating crypt device crypto"..., 46# Allocating crypt device crypto.img context.
) = 46
write(1, "# Trying to open and read device"..., 45# Trying to open and read device crypto.img.
) = 45
open("crypto.img", O_RDONLY)            = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
close(3)                                = 0
write(1, "# Initialising device-mapper bac"..., 46# Initialising device-mapper backend library.
) = 46
write(1, "# Trying to load LUKS1 crypt typ"..., 58# Trying to load LUKS1 crypt type from device crypto.img.
) = 58
open("/dev/urandom", O_RDONLY)          = 3
open("/dev/random", O_RDONLY|O_NONBLOCK) = 4
access("/etc/gcrypt/fips_enabled", F_OK) = -1 ENOENT (No such file or directory)
open("/proc/sys/crypto/fips_enabled", O_RDONLY) = -1 ENOENT (No such file or directory)
mmap(NULL, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffad9713000
getuid()                                = 0
mlock(0x7ffad9713000, 16384)            = 0
write(1, "# Crypto backend (gcrypt 1.5.0) "..., 45# Crypto backend (gcrypt 1.5.0) initialized.
) = 45
write(1, "# Reading LUKS header of size 10"..., 58# Reading LUKS header of size 1024 from device crypto.img
) = 58
open("crypto.img", O_RDONLY|O_SYNC|O_DIRECT|0x100000) = 5
open("crypto.img", O_RDONLY)            = 6
fstat(6, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
close(6)                                = 0
fstatfs(5, {f_type=0x9123683e, f_bsize=4096, f_blocks=51529216, f_bfree=33020322, f_bavail=32622212, f_files=0, f_ffree=0, f_fsid={-1287500829, -513623692}, f_namelen=255, f_frsize=4096}) = 0
fstat(5, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
read(5, "", 0)                          = 0
read(5, "", 4096)                       = 0
close(5)                                = 0
write(1, "# Releasing crypt device crypto."..., 45# Releasing crypt device crypto.img context.
) = 45
write(1, "# Releasing device-mapper backen"..., 35# Releasing device-mapper backend.
) = 35
write(1, "# Unlocking memory.\n", 20# Unlocking memory.
)   = 20
munlockall()                            = 0
setpriority(PRIO_PROCESS, 0, 0)         = 0
open("/usr/share/locale/en_US/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "Command failed with code 5", 26Command failed with code 5) = 26
write(2, ": Input/output error\n", 21: Input/output error
)  = 21
exit_group(1)                           = ?


> 
> Thanks,
> Milan

Thank you for your help

> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt



----- End forwarded message -----

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Re: [dm-crypt] Cryptsetup using loop device makes it stop

[Milan Broz]

On 05/27/2013 11:18 PM, Clément Hertling (Wxcafé) wrote:

> open("crypto.img", O_RDONLY|O_SYNC|O_DIRECT|0x100000) = 5
> fstat(5, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
> read(5, "", 0)                          = 0
> read(5, "", 4096)                       = 0
> close(5)                                = 0

This look like file crypto.img is empty, IOW file of zero size.

Please check it (also fsck filesystem etc.)

Milan

Re: [dm-crypt] Cryptsetup using loop device makes it stop

[Clément Hertling (Wxcafé)]

[-- Attachment #1: Type: text/plain, Size: 1272 bytes --]

Looks like the /dev/loop* files are all 0 bit : 

$ du /dev/loop*
0		/dev/loop0
0		/dev/loop1
0		/dev/loop2
0		/dev/loop3
0		/dev/loop4
0		/dev/loop5
0		/dev/loop6
0		/dev/loop7
0		/dev/loop-control

In the meantime, all the device files for my primary hard drive are also 0 bit,
and they mount alright :

$ du /dev/sda*
0		/dev/sda
0		/dev/sda1
0		/dev/sda2
0		/dev/sda3
0		/dev/sda4

Looks like it's normal.
fsck-ing my system partition didn't show any meaningful errors.

Thanks for your help.

-- 

Clément Hertling (Wxcafe)
------      ------
Sent from my netbook's cyberspace

On 13-05 07:23, Milan Broz wrote:
> 
> On 05/27/2013 11:18 PM, Clément Hertling (Wxcafé) wrote:
> 
> > open("crypto.img", O_RDONLY|O_SYNC|O_DIRECT|0x100000) = 5
> > fstat(5, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
> > read(5, "", 0)                          = 0
> > read(5, "", 4096)                       = 0
> > close(5)                                = 0
> 
> This look like file crypto.img is empty, IOW file of zero size.
> 
> Please check it (also fsck filesystem etc.)
> 
> Milan
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt

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Re: [dm-crypt] Cryptsetup using loop device makes it stop

[Clément Hertling (Wxcafé)]

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Alright. My image file was 0b too. I don't know how this happened, and
I'm very sorry I took so much of your time for this. Thanks for your
help, though, it works now. 


-- 

Clément Hertling (Wxcafe)
------      ------
Sent from my netbook's cyberspace

On 13-05 00:01, Milan Broz wrote:
> just use ls and see file size of your image file
> 
> On 05/28/2013 11:32 PM, Clément Hertling (Wxcafé) wrote:
> > I don't know how to check for it, sorry. Could you indicate me how?
> > 

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Re: [dm-crypt] Cryptsetup using loop device makes it stop

[Arno Wagner]

Don't worry. Even if it seems stupid in retrospect, these
things happen even to people with a lot of experience.

Arno


On Wed, May 29, 2013 at 11:12:37PM +0200, Clément Hertling (Wxcafé) wrote:
> Alright. My image file was 0b too. I don't know how this happened, and
> I'm very sorry I took so much of your time for this. Thanks for your
> help, though, it works now. 
> 
> 
> -- 
> 
> Clément Hertling (Wxcafe)
> ------      ------
> Sent from my netbook's cyberspace
> 
> On 13-05 00:01, Milan Broz wrote:
> > just use ls and see file size of your image file
> > 
> > On 05/28/2013 11:32 PM, Clément Hertling (Wxcafé) wrote:
> > > I don't know how to check for it, sorry. Could you indicate me how?
> > > 



> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt


-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno@wagner.name
GnuPG: ID: CB5D9718  FP: 12D6 C03B 1B30 33BB 13CF  B774 E35C 5FA1 CB5D 9718
----
There are two ways of constructing a software design: One way is to make it
so simple that there are obviously no deficiencies, and the other way is to
make it so complicated that there are no obvious deficiencies. The first
method is far more difficult.  --Tony Hoare