Author: kevans
Date: Sat Feb 24 04:02:06 2018
New Revision: 329903
URL: https://svnweb.freebsd.org/changeset/base/329903
Log:
lualoader: Explain nextboot stuff a little bit more
Modified:
head/stand/lua/config.lua
Modified: head/stand/lua/config.lua
==============================================================================
--- head/stand/lua/config.lua Sat Feb 24 03:48:52 2018 (r329902)
+++ head/stand/lua/config.lua Sat Feb 24 04:02:06 2018 (r329903)
@@ -140,12 +140,17 @@ local function check_nextboot()
nextboot_file .. "'")
end
+ -- Attempt to rewrite the first line and only the first line of the
+ -- nextboot_file. We overwrite it with nextboot_enable="NO", then
+ -- check for that on load. See: check_nextboot_enabled
+ -- It's worth noting that this won't work on every filesystem, so we
+ -- won't do anything notable if we have any errors in this process.
local nfile = io.open(nextboot_file, 'w')
if nfile ~= nil then
- -- We're overwriting the first line of the file, so we need the
- -- trailing space to account for the extra character taken up by
- -- the string nextboot_enable="YES" -- our new end quotation
- -- mark lands on the S.
+ -- We need the trailing space here to account for the extra
+ -- character taken up by the string nextboot_enable="YES"
+ -- Or new end quotation mark lands on the S, and we want to
+ -- rewrite the entirety of the first line.
io.write(nfile, "nextboot_enable=\"NO\" ")
io.close(nfile)
end
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