Jtdcftul

lately I've successfully had a clean install of Lubuntu (18.10) on my Asus x205ta with the instructions at this thread:How to install (L)Ubuntu 16.04 on the ASUS X205TA (F205TA)

However, due to a report closing in and I have troubles using libreoffice I installed win10 back. Now I want to go back to Lubuntu but at the end of installation there's a window pop up with message as follows:
External command finished with errors.

Command apt install -y --no-upgrade -o Acquire::gpgv::Options::=--ignore-time-conflict grub-efi-$(if grep -q 64 /sys/firmware/efi/fw_platform_size; then echo amd64-signed; else echo ia32; fi) finished with exit code 100. Output: WARNING: apt does not have a stable CLI interface. Use with caution in scripts. Reading package lists... Building dependency tree... Reading state information... The following additional packages will be installed: grub-efi-ia32-bin Recommended packages: grub-efi-ia32-signed The following packages will be REMOVED: grub-gfxpayload-lists grub-pc The following NEW packages will be installed: grub-efi-ia32 grub-efi-ia32-bin 0 upgraded, 2 newly installed, 2 to remove and 0 not upgraded. Need to get 0 B/682 kB of archives. After this operation, 4831 kB of additional disk space will be used. Get:1 cdrom://Lubuntu 18.10 Cosmic Cuttlefish - Release amd64 (20181017.2) cosmic/main amd64 grub-efi-ia32-bin amd64 2.02+dfsg1-5ubuntu8 [635 kB] Get:2 cdrom://Lubuntu 18.10 Cosmic Cuttlefish - Release amd64 (20181017.2) cosmic/main amd64 grub-efi-ia32 amd64 2.02+dfsg1-5ubuntu8 [47.1 kB] dpkg-preconfigure: unable to re-open stdin: No such file or directory E: Can not write log (Is /dev/pts mounted?) - posix_openpt (19: No such device) (Reading database ... 243251 files and directories currently installed.) Removing grub-gfxpayload-lists (0.7) ... Removing grub-pc (2.02+dfsg1-5ubuntu8) ... Selecting previously unselected package grub-efi-ia32-bin. (Reading database ... 243231 files and directories currently installed.) Preparing to unpack .../grub-efi-ia32-bin_2.02+dfsg1-5ubuntu8_amd64.deb ... Unpacking grub-efi-ia32-bin (2.02+dfsg1-5ubuntu8) ... Selecting previously unselected package grub-efi-ia32. Preparing to unpack .../grub-efi-ia32_2.02+dfsg1-5ubuntu8_amd64.deb ... Unpacking grub-efi-ia32 (2.02+dfsg1-5ubuntu8) ... Setting up grub-efi-ia32-bin (2.02+dfsg1-5ubuntu8) ... Processing triggers for man-db (2.8.4-2) ... Setting up grub-efi-ia32 (2.02+dfsg1-5ubuntu8) ... Unknown terminal: qterminal Check the TERM environment variable. Also make sure that the terminal is defined in the terminfo database. Alternatively, set the TERMCAP environment variable to the desired termcap entry. debconf: whiptail output the above errors, giving up! dpkg: error processing package grub-efi-ia32 (--configure): installed grub-efi-ia32 package post-installation script subprocess returned error exit status 255 Errors were encountered while processing: grub-efi-ia32 E: Sub-process /usr/bin/dpkg returned an error code (1)

Since I don't have any background on computer science or anything like that, I can only assume that bootia32.efi somehow didn't work as planned (Correct me if I'm wrong), but when I installed Lubuntu for the first time this didn't happend. So here I am, looking for any suggestions and advice. If I can't fix this I'll just have to back to win10, but I've just made up my mind trying out linux during my two-week vacation. Your words mean a lot to me, thanks!