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Questions tagged [mbr]

56 questions
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How to convert LVM on MDADM RAID1 on two MBR partitioned drives to GPT without data loss

I have an Ubuntu 18.04 LTS Server with two 3TB Fujitsu SATA disks with MBR partition tables. Output from fdisk -l and lsblk is shown below : sudo fdisk -l /dev/sd[ab] Disk /dev/sda: 2,7 TiB, 3000592982016 bytes, 5860533168 sectors Units: sectors of…
storestyggeulv
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What are the steps to convert an EBS boot volume from MBR to GPT without data loss? (Using Ubuntu)

I would like to extend one of my Ubuntu servers main/boot drive beyond 2TB. I know that I need to convert the drive to use GPT, and I'm confident that I can extend the size as needed once I'm able to convert to GPT successfully. I set up a test…
Justin Heath
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How to recover data - from Software RAID1 - MBR is lost on both drives

I'm trying to recover raid1 array, both disks are NVMe flash drives. I did really stupid thing in the end of long and bad day - erased first 512 bytes of each NVMe drive - the intention was to disable boot loader. It turned out that I erased…
qurashi
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How can I make old hardware work with new (large) drives?

Good afternoon, I picked up three Dell Poweredge 1950s and 4 SunFire X2200s from my local surplus store with the intention to finally build that cluster I've been thinking about for a few months. However, I understand that drives larger than 2.2 TB…
jakethehammer
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How to convert MBR to GPT and change from BIOS/legacy boot to UEFI

I am trying to convert a Windows 10 Enterprise VM from BIOS boot to EFI/UEFI. After extensive research I found the built-in "MBR2GPT" tool that MS released with Fall Creators Update: https://docs.microsoft.com/en-us/windows/deployment/mbr-to-gpt…
KidACrimson
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HP Microserver boot issues

I recently installed Ubuntu onto an SSD in a Gen8 HP Microserver. It worked perfectly fine for a few weeks, but now it won't boot. Randomly one day it started refusing to boot, giving an error along the lines of 'no system disk or disk error'. I…
Pete Williams
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4TB USB3 disk compatilibity

We recently bought a USB3 Verbatim Store 'n' Save 4 TB hard disk for offline backups of our backups. It didn't work on the (Linux) server I wanted to use it on and also didn't get it to work on a Windows Server 2008 machine; the Linux machine just…
Halfgaar
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Can a Windows Server 2008 use a GPT-only partition table?

I have here a little bit uncommon system: its primary hard disk can't have an old, DOS (MBR) partition table, only a GPT type. It is an outer restriction, that nothing can be done about. It seems as if the firmware silently rejected the disk writes…
peterh
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External HDD wrong size

I have an very interesting problem with a Seagate HDD (3TB): Under Windows the HDD has a size of ~3TB. When I connect it to Ubuntu 14.04 and try to format it with GParted, GParted tells me that the backup partition table (GPT) is corrupt and it uses…
WhiteIntel
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How can I boot Linux with too many logical volumes?

I've created 45 logical volumes (and one extended) with fdisk on a non-boot HDD. Now the system refuses to boot, as well as any Linux live CD, that I've tried. Computer always turns off just after starting loading kernel (when loader output is…
ayvango
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Recover data on a hard-drive that changed partition table

I changed the partition table on one HDD from GPT to MBR/MSDOS but I realized (too late) that it affected all partitions on the same HDD. Basically I lost data on the secondary partition which I wanted to keep. I used gparted to perform the change…
tknk
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Formatting a new disk partition

I just added a new raid1 volume to my Windows 2008 server. The raid sync has just completed so I want to format it. I got this message: That disk will be used just for storage, no need to boot anything from it. Can I just cancel this dialog and…
Fabio B.
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install boot with raid 1 in 3 TB disks

I'm trying to install /boot in a RAID 1 using 3 TB disks. As the RAID partition do not let you manage partitions than more than 2 TB, CentOS automatically configures the partitions using GPT. My current machine (HP Proliant ML110 G4) does not…
Beltran
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What is the difference between a DOS and Solaris MBR?

I have been playing around with a VM trying to install Gentoo, and it seems there are two options for my Master Boot Record : DOS and Solaris. What is the difference? Which should I choose, or are there situations which I would prefer one over the…
Thunder3
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EFI vs MBR - Installing Windows Server 2008 R2 or 2012 on 8TB

I'm having some difficulty installing Windows Server 2008 R2 and Windows Server 2012 on an Intel Server platform. The server specs is as follows: Intel Grizzly Pass Server System - R2308GZ4GC 2x Intel Xeon 2620 - 2.0 GHZ - BX80621E52620 132 GB of…
Riaan
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