Avamar: VMware plugin - FLR Failed to determine the partition type

Summary: Avamar: VMware plugin - FLR Failed to determine the partition type

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Symptoms



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

Run 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 also 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

When the disk is partitioned using GPT label, The flr supports only 1 partition type:  LVM(s) or Linux Filesystem (s)  and does not allow for mixed types of partitions.


When the disk is partitioned using msdos labels,  the FLR code will ignore any partition with boot flag and will mount the VM with mixed partitions types successfully.

Resolution

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

Affected Products

Avamar

Products

Avamar, Avamar Client for VMware
Article Properties
Article Number: 000167751
Article Type: Solution
Last Modified: 23 Oct 2025
Version:  5
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