disk_config for disks > 2TB

stuff at antizone.net stuff at antizone.net
Wed Dec 9 16:02:49 CET 2015

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


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>


> 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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