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 a 501(c)(3) educational non-profit evan@vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation
You might want to ask this guy http://www.frob.com/~roland/ He is the author on all the man pages for the open source version chroot I wouldn't be surprised if it was him https://github.com/wertarbyte/coreutils/blob/master/src/chroot.c http://manpages.courier-mta.org/htmlman1/chroot.1.html He can probably tell you. On Tue, Sep 19, 2017 at 2:29 AM, Evan Koblentz via vcf-midatlantic <vcf-midatlantic@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 a 501(c)(3) educational non-profit
evan@vcfed.org (646) 546-9999
www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation
On Sep 19, 2017, at 08:23, Christian Liendo via vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
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
https://github.com/wertarbyte/coreutils/blob/master/src/chroot.c
That's the userland chroot utility; I got the impression that Evan was asking more about the syscall and the overall chroot mechanism. Couldn't hurt to ask this guy, obviously. I'd start with Poul-Henning Kamp, who discusses chroot as a predecessor to FreeBSD jails in several articles. He's probably fairly responsive to queries, though he may not know the history of chroot() any better. - Dave
From the below chroot was not actually invented it was an alias of chdir. The inventing had already happened with whomever it was that evolved the chdir command's security features for FTP etc. chdir was already doing the chroot stuff on the p d p 11 and vax unix.
https://utcc.utoronto.ca/~cks/space/blog/unix/ChrootHistory Bill Degnan twitter: billdeg vintagecomputer.net On Sep 19, 2017 2:29 AM, "Evan Koblentz via vcf-midatlantic" < vcf-midatlantic@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 a 501(c)(3) educational non-profit
evan@vcfed.org (646) 546-9999
www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation
participants (4)
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Christian Liendo -
David Riley -
Evan Koblentz -
william degnan