LMDE 7 LV Setup per Daniel Wayne Armstrong (VENV)

Setup  below in general follows guide lines proposed in https://www.dwarmstrong.org/install-lmde-with-custom-lvm-luks/. However, we intend to remove swap LV and increase sizes of root and home LVs . Then reboot system and activate zram instead of keeping unreasonably large LV swap on /dev/vda

At the end of normal install with LVs root and swap reject reboot and open terminal session

mint@mint:~$ sudo -i

root@mint:~# lsblk -f

root@mint:~# vgs

Now we resize root LV

root@mint:~# lvresize -L 55G --resizefs lvmlmde/root

and  remove swap LV due to intend activate zram after reboot

Remove swap LV

root@mint:~# swapoff /dev/ lvmlmde/swap

 root@mint:~# lvremove  /dev/ lvmlmde/swap

 Create home LV with ext4 filesystem

 root@mint:~# lvcreate -L 14G lvmlmde -n home

 root@mint:~# mkfs.ext4 /dev/lvmlmde/home

Move home via mount the LVs:

root@mint:~# mkdir /mnt/{root,home}

root@mint:~# mount /dev/lvmlmde/root /mnt/root/

root@mint:~# mount /dev/lvmlmde/home /mnt/home/

Move the contents of /home from the root LV to the new home LV:

root@mint:~# mv /mnt/root/home/* /mnt/home/

Update fstab

Create an entry for home in /mnt/root/etc/fstab:

root@mint:~# echo "/dev/mapper/lvmlmde-home    /home   ext4    defaults    0 2" >> /mnt/root/etc/fstab

end remove swap entry from /mnt/root/etc/fstab

Unmount LVs:

root@mint:~# umount /mnt/home

root@mint:~# umount /mnt/root

Deactivate volume group

root@mint:~# lvchange -an lvmlmde

Now we are ready to reboot into LMDE 7 VM with reconfigured disk layout

Activate zram

boris@Lmde7VMS:~$ sudo apt install zram-tools

Installing:

  zram-tools

Summary:

  Upgrading: 0, Installing: 1, Removing: 0, Not Upgrading: 0

  Download size: 6,456 B

  Space needed: 29.7 kB / 46.9 GB available

Get:1 https://deb.debian.org/debian trixie/main amd64 zram-tools all 0.3.7-1 [6,456 B]

Fetched 6,456 B in 0s (18.3 kB/s)

Selecting previously unselected package zram-tools.

(Reading database ... 412256 files and directories currently installed.)

Preparing to unpack .../zram-tools_0.3.7-1_all.deb ...

Unpacking zram-tools (0.3.7-1) ...

Setting up zram-tools (0.3.7-1) ...

Created symlink '/etc/systemd/system/multi-user.target.wants/zramswap.service' → '/usr/lib/systemd/system/zramswap.service'.

Processing triggers for man-db (2.13.1-1) ...

boris@Lmde7VMS:~$ sudo nano /etc/default/zramswap

boris@Lmde7VMS:~$  sudo zramswap start

<13>Oct 17 07:58:08 root: Starting Zram

/usr/sbin/zramswap: line 53: echo: write error: Device or resource busy

<13>Oct 17 07:58:08 root: setting compression algo to lz4

/usr/sbin/zramswap: line 54: echo: write error: Device or resource busy

<13>Oct 17 07:58:08 root: setting zram device size to 9815329996

mkswap: /dev/zram0: warning: wiping old swap signature.

Setting up swapspace version 1, size = 7.6 GiB (8179437568 bytes)

no label, UUID=0e9ce52a-c7dd-4a96-b5f5-9d7619adadfd

boris@Lmde7VMS:~$     sudo reboot