[DRBD-user] Problem with drbd v8 - cannot create new device

[Michael Paesold]

I want to run drbd trunk r2131 on 2.6.16.1 (with Xen 3). The problem is that
I cannot create/attach a new drbd device. The same error has been reported
before:
http://lists.linbit.com/pipermail/drbd-user/2005-May/002951.html
http://lists.linbit.com/pipermail/drbd-user/2005-May/002956.html

NB: the lower-level device is a lvm device (was easier to setup for testing
because I already had a disc configured and used as volume group).
---------------------
xencore03:[~]# drbdadm create-md drbd5

Valid meta-data already in place, recreate new?
[need to type 'yes' to confirm] yes

Creating meta data...
initialising activity log
initialising bitmap (131036 KB)
99%New drbd meta data block sucessfully created.
---------------------
xencore03:[~]# drbdadm dump-md drbd5
version "v08";

uuid {
    0x0000000000000004; 0x0000000000000000; 0x0000000000000000;
0x0000000000000000;
}
la-size-sect 0;
bm-byte-per-bit 4096;
device-uuid 0xDA17EF502CA55067;
# bm-bytes 0;
# bits-set 0;
bm {
}
---------------------
xencore03:[~]# ls -l /dev/drbd5
brw-------  1 root root 147, 5 Apr  6 11:49 /dev/drbd5

xencore03:[~]# lsmod |grep drbd
drbd                  149120  0
---------------------
xencore03:[~]# drbdadm attach drbd5
ioctl(,SET_DISK_CONFIG,) failed: Invalid argument
No valid meta-data signature found.
Use 'drbdadm create-md res' to initialize meta-data area.

Command 'drbdsetup /dev/drbd5 disk /dev/vmg/vmA5 /dev/vmg/drbdmeta
5 --on-io-error=detach' terminated with exit code 20
drbdadm aborting

---------------------
/var/log/messages says:
Apr  6 12:28:33 xencore03 kernel: drbd5: disk( Diskless -> Attaching )
Apr  6 12:28:33 xencore03 kernel: drbd5: Error while reading metadata, magic
not found.
Apr  6 12:28:33 xencore03 kernel: drbd5: disk( Attaching -> Diskless )
Apr  6 12:28:33 xencore03 kernel: drbd5: drbd_bm_resize called with capacity
== 0


I have attached the strace output for the drbdsetup command as well as
"drbdadm dump".

I would be interested in helping debug this issue.

Best Regards,
Michael Paesold
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