Restore from tape OBDR not working

[Francesco Novi]

Restore does not work on server HP Proliant Gen8 with an external usb tape DAT 160 using OBDR.

The server has 1 internal disk :   /dev/cciss/c0d0
and looks at several hd of a disk-array (connected via fiber channel):
[2:0:0:0]    storage HP       HSV300           1100  -
[2:0:0:1]    disk    HP       HSV300           1100  /dev/sda
[2:0:0:2]    disk    HP       HSV300           1100  /dev/sdb
[2:0:0:3]    disk    HP       HSV300           1100  /dev/sdc
[2:0:0:4]    disk    HP       HSV300           1100  /dev/sdd
[2:0:1:0]    storage HP       HSV300           1100  -
[2:0:1:1]    disk    HP       HSV300           1100  /dev/sde
[2:0:1:2]    disk    HP       HSV300           1100  /dev/sdf
[2:0:1:3]    disk    HP       HSV300           1100  /dev/sdg
[2:0:1:4]    disk    HP       HSV300           1100  /dev/sdh

When trying to restore I get the error : /dev/nst0 failed to act as extended data disk for booting.

The backup has been done with the following command:

mondoarchive  -N -O -E "/var/lib/ntp/proc|/opt/dbbackup|/opt/mondo|/opt/iso|dev/sd*" -t -o -d /dev/st0 -T /opt/mondo/tmp -S /opt/mondo/scratch

Software installed:

mondo-3.0.2-1.sles11.x86_64.rpm
mindi-2.1.2-1.sles11.x86_64.rpm
buffer-1.19-4.sles11.x86_64.rpm
afio-2.5-1.sles11.x86_64.rpm

Please help me how to do the restore via tape.

Thanks

[Francesco Novi]

Another info that can help. On the machine there is installed xen, so the kernel is : 3.0.13-0.27-xen

On restore before getting the message: /dev/nst0 failed to act as extended data disk for booting.

I catch the message: mt: can't open /dev/nst0 device or address does not exist

Another update regarding the problem. The problem of restore seems to be how mindi makes the bootable part on the backup device. I have noticed that the bootable parte done from mindi is not well done.

So i have modified some defaults in th efollowing way.

I have modified in /usr/sbin/mindi the following: KERNEL_IS_XEN="yes" I have modfiied in /etc/mindi/mindi.conf : EXTRA_SPACE=580152 BOOT_SIZE=332768

Then I have tried to do a iso cdrom to check if mindi makes a good backup iso file. I executed: mindi and I got the following messages: .ERROR: Sorry, your kernel is too big for your image FATAL ERROR. Try to increase EXTRA_SPACE and BOOT_SIZE in /etc/mindi/mindi.conf Please e-mail a copy of /var/log/mindi.log to the mailing list. See ​http://www.mondorescue.org for more information. WE CANNOT HELP unless you enclose that file. Please help me.

Thanks

[Bruno Cornec]

TH last error mentioned should be solved with rev [3115] which will be in mindi 2.1.6.

For the OBDR part, I'd need the mondorestore.log file generated at restore time, as well as the dmesg content in order to understand better why it's not working.

ALso please report what it gives with the latest versions (mondo 3.0.3 and mindi 2.1.5 just announced)