| RESCUE(8) | System Manager's Manual | RESCUE(8) | 
rescue —
If your system fails to boot, and it shows an error message similar to:
init: not foundtry booting the system with the boot flag
    “-a” and supplying
    /rescue/init, which is the
    rescue
    init(8), as the init path.
If your system fails to boot, and it shows a prompt similar to:
Enter full pathname of shell or
  RETURN for /bin/sh: the first thing to try running is the standard shell,
    /bin/sh. If that fails, try running
    /rescue/sh, which is the
    rescue shell. To repair the system, the root
    partition must first be remounted read-write. This can be done with the
    following mount(8) command:
/rescue/mount -uw /The next step is to double-check the contents of /bin, /lib, /libexec, and /sbin, possibly mounting a NetBSD installation CD-ROM and copying files from there. Once it is possible to successfully run /bin/sh, /bin/ls, and other standard utilities, try rebooting back into the standard system.
The /rescue tools are compiled using crunchgen(1), which makes them considerably more compact than the standard utilities.
rescue hierarchy.rescue utilities first appeared in
  NetBSD 2.0.
rescue system was written by Luke
  Mewburn
  <lukem@NetBSD.org>.
  This manual page was written by Simon L. Nielsen
  <simon@FreeBSD.org>,
  based on text by Tim Kientzle
  <kientzle@FreeBSD.org>.
| April 5, 2012 | NetBSD 9.4 |