Try:
find /mnt/ -iname "*linux.conf"
Oh thank you I solved the problem :-)
I ran other distro, browse the pendrive-files and rewrite it with "root" access :-)
BUT! It didn t work! I change it to 60 seconds, watched the countdown and I forgot that thing this pendrive is a poor one, and needs to plug out-in combo again when the countdown runs.. after that the tiny core is perfectly working with the graphic desktop.. !
Thanks for useful help 4 everyone!
Conclusion: don't use too cheap/noname brand/too old pendrives :-]