WinSCP cannot change the config.txt file

[mk01]

it is not "problem" in means of bug. the chain of events leading to that is fact that /boot partition is fat. fat has no ACLs and by default is mounted with "fake" ownership = owner root.

it can be changed via mountoptions in /etc/fstab for /boot to xbian, which would allow xbian RW access to /boot. it is "uid=value and gid=value".

but probably better solution is to set "umask=0". (just add it into /etc/fstab line which starts /dev/mmcblk0p1. change rw,noatime to rw,noatime,umask=0.

umount /boot && mount /boot .
now anyone should be able to RW into /boot

(umask=0 will not change owner - this stays root. but will allow RWX permissions for owner also owner group and also - our case - other users).