What exactly does the error message beginning with E: mean? I assume it has to do with the file structure on Ubuntu-on-Windows, but what exactly?
The following package was automatically installed and is no longer required: os-prober Use 'apt-get autoremove' to remove it. The following extra packages will be installed: libxslt1.1 The following NEW packages will be installed: libxslt1.1 xmlstarlet 0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 435 kB of archives. After this operation, 1023 kB of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu/ trusty/main libxslt1.1 amd64 1.1.28-2build1 [145 kB] Get:2 http://archive.ubuntu.com/ubuntu/ trusty/universe xmlstarlet amd64 1.5.0-1 [290 kB] Fetched 435 kB in 3s (134 kB/s) **E: Can not write log (Is /dev/pts mounted?) - openpty (2: No such file or directory)** Selecting previously unselected package libxslt1.1:amd64. (Reading database ... 28723 files and directories currently installed.) Preparing to unpack .../libxslt1.1_1.1.28-2build1_amd64.deb ... Unpacking libxslt1.1:amd64 (1.1.28-2build1) ... Selecting previously unselected package xmlstarlet. Preparing to unpack .../xmlstarlet_1.5.0-1_amd64.deb .