kernel-packages team mailing list archive

[Abhishek Gupta <abgupta@xxxxxxxxxxxxx>]

Public bug reported:

We are unable to take backups of Generation 2 VMs because they include a
FAT 32 EFI partition. This patch ignores such partitions while freezing
the file-system to take a snapshot during the initial stages of the
backup process. Since EFI partition is not expected to be modified
regularly, the ignore functionality should address the problem. Please
include the following upstream patch in the vss daemon:

Tools: hv: vssdaemon: Ignore VFAT mounts during the Freeze operation
If the guest has a FAT file system mounted, skip it during the FREEZE
operation. With this change we can support host initiated backup of
the guest even when the guest may have FAT file systems mounted.

https://git.kernel.org/cgit/linux/kernel/git/next/linux-
next.git/commit/tools/hv/hv_vss_daemon.c?id=f33b215549938f89aebf862b942366d2aa41c191

Thanks,
Abhishek

** Affects: hv-kvp-daemon-init (Ubuntu)
     Importance: Undecided
         Status: Confirmed

** Package changed: linux (Ubuntu) => hv-kvp-daemon-init (Ubuntu)

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https://bugs.launchpad.net/bugs/1298192

Title:
  hyper-v: Unable to take backups of Generation 2 VMs

Status in “hv-kvp-daemon-init” package in Ubuntu:
  Confirmed

Bug description:
  We are unable to take backups of Generation 2 VMs because they include
  a FAT 32 EFI partition. This patch ignores such partitions while
  freezing the file-system to take a snapshot during the initial stages
  of the backup process. Since EFI partition is not expected to be
  modified regularly, the ignore functionality should address the
  problem. Please include the following upstream patch in the vss
  daemon:

  Tools: hv: vssdaemon: Ignore VFAT mounts during the Freeze operation
  If the guest has a FAT file system mounted, skip it during the FREEZE
  operation. With this change we can support host initiated backup of
  the guest even when the guest may have FAT file systems mounted.

  https://git.kernel.org/cgit/linux/kernel/git/next/linux-
  next.git/commit/tools/hv/hv_vss_daemon.c?id=f33b215549938f89aebf862b942366d2aa41c191

  Thanks,
  Abhishek

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