This article explains how to work with the Advanced Partitioning schemes available in the Datto USB BMR environment. It assumes that you have already completed the steps in USB Bare Metal Restore: Booting the target machine from USB , have reviewed the Beginning the restore article, and that you have elected to manually partition your Bare Metal Restore.
- Datto SIRIS
- Datto ALTO
- Datto Bare Metal Restore (BMR)
- When a partition is too small for the minimum space required the status will show a warning and not allow the user to proceed.
- When a partition is too large for the size of the disk, the user will be prevented from continuing with a reason explaining why the partition table is not acceptable.
- When using the Mirroring option, you will not be able to manually partition unless the automatic partition fails. In this situation, you must ensure that the partition is larger than the volume you are restoring to it in order to accommodate the mirrored data.
If you are performing a Bare Metal Restore of a Linux system, keep the following differences in mind while you go through this process:
- The file system type will be ext2, ext3, ext4, or xfs unless the partition is for swap. You'll need to use manual partitioning to add a swap.
- If there is only one partition, it will be bootable by default.
- If there is a separate
/bootpartition, set it to be bootable, and make sure it is the first partition listed.
By this point in the process, you should see the Partition Manager environment.
Setting up an OS partition
Your next steps depend on whether you want your target machine to use Master Boot Record or GUID Partitioning Table (GPT). The advantages of GPT include EFI booting and creating volumes over 2.2 TB in size. Make sure that you have hardware that supports EFI before you choose this option.
Setting up an MBR OS Partition
To set up an MBR OS partition, follow these steps:
1. Create the partition scheme. The Bare Metal Restore wizard will suggest a partition layout, Review the information presented carefully.
2. Click Add Partition. Create the OS partition with an MBR partition scheme. Set the Type to Primary, and the size to be 20% larger than the original OS drive that you are restoring. Set the File System to NTFS.
3. Click Bootable. Then, set the Restore Mount Point to the volume you are restoring.
Note that you'll receive a warning if the partition size exceeds the size of the disk, as in the example below.
If you need to create a data partition, go to the Setting up a data partition section below.
4. Click Accept when done.
Then, proceed to the article USB BMR: Data Transfer.
Setting up GPT OS partition
To set up a GPT OS partition, follow these steps:
Create the partition scheme. The Bare Metal Restore wizard will suggest a partition layout. Review the information presented carefully.
1. On the physical drive that you want to use for the OS, set the Partition Scheme to GPT.
2. Click Add Partition, and create a primary GPT partition with an EFI file system format. Set the Size to 512 MB by entering .5 in the Size field.
3. Click Add Partition again, and create a Microsoft Reserved partition with an MSR file system format. Set the Size to 128 MB by entering .125 in the Size field.
4. Click Add Partition, and create the OS partition as the primary boot partition. Set the size to at least 20% more storage space than the system you are restoring. Set the file system to NTFS, check the Bootable box, and select the Restore Mount Point of the volume you are restoring. See Figure 6.
5. Click Add to add the partition. You will see the window shown in Figure 8.
If you need to create a separate data partition, go to the Setting up a Data Partition section of this article.
6. When done with partitioning, click Accept. Then, proceed to the article USB BMR: Data Transfer.
Setting up a data partition
To set up the data partition, follow these steps:
1. Create the partition scheme. The Bare Metal Restore wizard will suggest a partition layout, as shown in Figure 8. Review the information presented carefully.
2. If you need to add a partition, click Add Partition, and create the new partition scheme in MBR or GPT format, as desired. See Figure 7.
3. Choose NTFS for the file system. Make the size at least 20% larger than the existing data set that you want to restore.
If you want to set up another data partition, repeat the steps in this section.
4. Click Apply when done, then, proceed to the article USB BMR: Data Transfer.