From mboxrd@z Thu Jan 1 00:00:00 1970 From: cowan@mercury.ccil.org (John Cowan) Date: Sun, 21 Feb 2016 12:21:01 -0500 Subject: [TUHS] Unix v6 File System information In-Reply-To: References: <20160221114412.62D8B18C0F6@mercury.lcs.mit.edu> Message-ID: <20160221172101.GH2332@mercury.ccil.org> Dave Horsfall scripsit: > Somewhere, deep within Minnie's bowels, there might be a paper that I > wrote upon implementing a "bad block" system (specifically directed at the > RK-05, but generally applicable to any device); it involved the hitherto- > unused inode "0", to which were chained the bad blocks (added by hand). The RSX-11 file system, later known as ODS-1, was similar in this respect: the root directory contained entries for the bad-block file (BADBLK.SYS), the inode-file-equivalent (INDEXF.SYS) and even itself (000000.DIR). -- John Cowan http://www.ccil.org/~cowan cowan at ccil.org I am a member of a civilization. --David Brin