Unix v4 tape dumped and booted

https://unixv4.dev/ offers a web terminal into it (discussed at https://news.ycombinator.com/item?id=46468283 )

https://sigma-star.at/blog/2025/12/unix-v4-buffer-overflow/ fixes a su bug

previously https://news.ycombinator.com/item?id=45840321

parallel discussion: https://news.ycombinator.com/item?id=46332029

the actual dump: https://archive.org/details/utah_unix_v4_raw

see also https://news.ycombinator.com/item?id=46364136

see also https://news.ycombinator.com/item?id=46367744 (analysis of the tape)