[vcf-midatlantic] Inventor of Unix Chroot?

Christian Liendo cliendo at gmail.com
Tue Sep 19 08:23:52 EDT 2017

You might want to ask this guy


He is the author on all the man pages for the open source version chroot

I wouldn't be surprised if it was him



He can probably tell you.

On Tue, Sep 19, 2017 at 2:29 AM, Evan Koblentz via vcf-midatlantic
<vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:
> Help me with a research thingamajig.
> I want to find out who made Chroot.
> Wikipedia -- purely as a starting point -- shows a comment in the Chroot
> talk page stating, "This system call was present [in] AT&T versions of Unix
> well before 1982. This citation should be changed to point to an AT&T
> version. Indeed, Research's UNIX V7 sources (usr/sys/sys/sysent.c dated May
> 7th, 1979) has an entry at position 61 for chroot(2); the fact is even noted
> under the article about V7..."
> See:
> https://en.wikipedia.org/wiki/Talk%3AChroot#Bill_Joy_did_not_invent_chroot
> I know many of you are old-school Unix users/developers and some of you
> worked at AT&T.
> Who can help me find out which specific people (I need names) actually
> invented Chroot?
> ________________________________
> Evan Koblentz, director
> Vintage Computer Federation
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