Avamar: File Level Restore - Failed to Determine the Partition Type

Summary: File Level Restore (FLR) fails to determine the partition type on Linux virtual machines (VMs) with a GPT‑labelled disk that contains both Linux file system and LVM partitions. FLR supports only one partition type per GPT disk, causing the failure. ...

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Symptoms

FLR error message

FLR Failed to determine the partition type on Linux VMs with GPT partitioned with mixture of Linux and Logical volumes partitions:

Disk layout evidence

Run the following command on the VM guest: fdisk -lu and blkid:

fdisk -lu
Disk /dev/sda: 70 GiB, 75161927680 bytes, 146800640 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: xxxxx-xxxx-xxxx

Device      Start       End   Sectors  Size Type
/dev/sda1    2048      4095      2048    1M BIOS boot
/dev/sda2    4096    980991    976896  477M Linux filesystem
/dev/sda3  980992 146798591 145817600 69.5G Linux LVM

blkid output

Shows partitions sda2 and sda3 are Linux file system and Logical volumes partitions respectively:

blkid
/dev/sda2: UUID="xxxxx-xx-xxx-xxxx-xxxx" TYPE="ext2" PARTUUID="xxxxx-xx-xxx-xxxx-xxxx"
/dev/sda3: UUID="xxxxx-xx-xxx-xxxx-xxxx" TYPE="LVM2_member" PARTUUID="xxxxx-xx-xxx-xxxx-xxxx"
/dev/mapper/vg00-lvroot: UUID="xxxxx-xx-xxx-xxxx-xxxx" TYPE="ext3"
/dev/mapper/vg00-lvopt: UUID="xxxxx-xx-xxx-xxxx-xxxx" TYPE="ext3"
/dev/mapper/vg00-lvvar: UUID="xxxxx-xx-xxx-xxxx-xxxx" TYPE="ext4"
/dev/mapper/vg00-lvwab: UUID="xxxxx-xx-xxx-xxxx-xxxx" TYPE="ext4"
/dev/mapper/swap: UUID="xxxxx-xx-xxx-xxxx-xxxx" TYPE="swap"
/dev/sda1: PARTUUID="xxxxx-xx-xxx-xxxx-xxxx"

Cause

Unsupported mixed partition types on GPT disks

  • When a disk uses a GPT label, FLR supports only one partition type per disk: either LVMs or Linux file systems.
  • FLR does not support disks that contain mixed partition types in this configuration.
  • When a disk uses an msdos label, the FLR process ignores any partition with the boot flag and mounts the VM successfully even when the disk contains mixed partition types.

Resolution

The configuration of mixed GPT partitions is not supported for FLR.

Affected Products

Avamar

Products

Avamar, Avamar Client for VMware
Article Properties
Article Number: 000167751
Article Type: Solution
Last Modified: 08 تموز 2026
Version:  8
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