# Getting issue while installing SLES 11 SP3
**URL:** https://forums.suse.com/t/getting-issue-while-installing-sles-11-sp3/27687
**Category:** SLES Install-Boot
**Created:** [December 3, 2015, 8:39am UTC](https://forums.suse.com/t/getting-issue-while-installing-sles-11-sp3/27687 "2015-12-03T08:39:12Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@carlosferns2006](https://forums.suse.com/u/carlosferns2006)
#### Post date: [December 3, 2015, 8:39am UTC](https://forums.suse.com/t/getting-issue-while-installing-sles-11-sp3/27687/1 "2015-12-03T08:39:12Z")
Hi All,
I am getting below error while doing partitoning
cannot determine the exact order of disks for device map, change the order of the disk in boot loader installation details…
even if i select by default option, i am getting the same error…
I am installing on cisco ucsb-ex-m4-1(A)
Please help…
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### Author:  [@Eugen](https://forums.suse.com/u/Eugen)
#### Post date: [December 8, 2015, 11:33am UTC](https://forums.suse.com/t/getting-issue-while-installing-sles-11-sp3/27687/2 "2015-12-08T11:33:31Z")
Hi,
I don’t have too much experience and this error message is new to me, but there was a similar question in the [forum](https://forums.opensuse.org/showthread.php/430083-Installing-OpenSUSE-11-2-on-a-SunFire-X4140). Have you seen that? Would this solve your problem? The solution in that case was
[QUOTE]Solution: The server had PCI scanning disabled in the BIOS, so the RAID controller didn’t appear and couldn’t be configured.
I looked for PCIPnP and then ‘Scanning OPROM on PCI-E slotN’ - and just enabled all the slots.
The LSI controller prompt appeared on a reboot and I was able to configure a RAID and the installation went smoothly. [/QUOTE]
Regards,
Eugen