disk_config for disks > 2TB

Kerim Gueney kgueney at uni-koeln.de
Wed Dec 9 16:40:50 CET 2015


setup-storage does create that special partition at the end and places 
it at the beginning of the disk physically. As such it should work. I am 
currently in the process of overhauling gpt related partitioning. Once 
done with that, I'll see if I can reproduce this issue.

Thank you very much :)

Am 09.12.2015 um 16:02 schrieb stuff at antizone.net:
> yes but using gpt and creating a small partition at the beginning of the
> drive is supposed to fix that (1MB partition with the right partition
> type),
> i did it manually before on other machines (with my own dhcp/pxe script,
> before i knew about FAI)
> i was pressed by the time for installing this server so i didn't dig more
> into this, but i'm pretty sure it's possible (i might be wrong though)
> On Wed, 9 Dec 2015 15:51:52 +0100, Kerim Güney <kgueney at uni-koeln.de>
> wrote:
>> Hi Dann,
>>   Could it be that it's causing problems, because MBR's don't support
>> partitions greater than 2TB?
>>   From Wikipedia:
>>   >  Protective MBR - Same as a normal MBR but the 64-byte area contains
>> a single 0xEE type Primary partition entry defined over the entire size
>> of the disk or in case of >2 TiB, upto a partition size of 2 TiB.
>>   Best regards
>>   Kerim
>>   On 09/12/15 15:10, stuff at antizone.net [1] wrote:
>> Hi
>>   i'm sending this email for Kerim as advised by Mrfai. No answer needed
>> :)
>>   i have an issue when trying to create a single root partition on a
>> raid5 array of 3.7TB
>>   here's the disk_config :
>>   #
>>   disk_config disk1 disklabel:gpt-bios bootable:1 fstabkey:uuid
>>   primary /      100%  ext4  rw,noatime,errors=remount-ro
>>   primary swap   32G        swap  sw
>>   when the system boot, it fails to boot from the mbr and drops to grub
>> rescue.
>>   running rescue command like insmod linux fails with an error message
>> which i didn't wrote sorry, but it's easily reproducible i suppose.
>>   i worked around the issue by creating more partitions not exceeding 2TB
>>   i'm available for more information if needed.
>>   thanks
>>   Dann

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