diskfilter writes are not supported

[Udayendu Kar]

I am using Linux Lite 5.0 on both Dell Inspiron and on vms running on VMwrae as well as Oracle VirtualBox. And at all the places I am getting this message:

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error: diskfilter writes are not supported.

Press any key to continue...
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I am not using RAID but my root is on LVM. If I am using normal Ubuntu 18.04 LTS or 20.04 LTS, I never get this message but with Linux Lite its coming.

Even tried following the "quick_boot" parameter change as mentioned in:  https://askubuntu.com/questions/468466/d...0partition.

But thats still not working.

==: Out put from my VM :==
root  ~  df -PTH
Filesystem              Type      Size  Used Avail Use% Mounted on
udev                    devtmpfs  2.1G    0  2.1G  0% /dev
tmpfs                    tmpfs    413M  2.8M  411M  1% /run
/dev/mapper/vglinux-root ext4      78G  9.1G  65G  13% /
tmpfs                    tmpfs    2.1G    0  2.1G  0% /dev/shm
tmpfs                    tmpfs    5.3M  4.1k  5.3M  1% /run/lock
tmpfs                    tmpfs    2.1G    0  2.1G  0% /sys/fs/cgroup
/dev/sda1                vfat      536M  8.2k  536M  1% /boot/efi
tmpfs                    tmpfs    413M  8.2k  413M  1% /run/user/110
tmpfs                    tmpfs    413M  4.1k  413M  1% /run/user/1000
root  ~  pvs
  PV        VG      Fmt  Attr PSize  PFree
  /dev/sda5  vglinux lvm2 a--  <74.50g    0
root  ~  vgs
  VG      #PV #LV #SN Attr  VSize  VFree
  vglinux  1  2  0 wz--n- <74.50g    0
root  ~  lvs
  LV    VG      Attr      LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  root  vglinux -wi-ao---- <73.54g
  swap_1 vglinux -wi-ao---- 980.00m
root  ~