How to edit file in single user mode
parv at pair.com
Wed Dec 1 19:27:59 PST 2004
in message <41AE5BB9.1000902 at daleco.biz>,
wrote Kevin D. Kinsey, DaleCo, S.P. thusly...
> >>On Sun, 28 Nov 2004, Trey Sizemore wrote:
> >>>I made a typo in rc.conf and now am able to boot only into single user
> >>>mode. I thought vi would be available to edit the file, but cannot
> >>>execute it (vi not found).
> What if you can't mount /usr ? then you've even more trouble.
> You can learn to use ed(1), but that's like going back thirty
Key is to learn some ed before the actual need arises. Else,
frustration lies the other way.
> There was some discussion ... on the idea of building a small
> editor binary that you like ... and cp'ing it to /bin in
Remember to link your favourite editor statically before even bother
to copy. Currently, ee is linked here (4.10-p4) to ...
libncurses.so.5 => /usr/lib/libncurses.so.5 (0x28073000)
libc.so.4 => /usr/lib/libc.so.4 (0x280b5000)
Whatever happens to the editor, it needs to be self
contained/sufficient by being small, statically compiled, and be
usable w/o the facility of curses.
That reminds me of my old C++ class editor project. My version of the
editor -- ed like commands, no regex support, menu driven --
statically compiled w/ GCC 3.4 & stripped takes 403 kB (-O1) or 389 kB
(-O2). (It has yet to go through a thorough review though. Anybody
care to take a look?) I suppose i could/should save a copy just in
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