On Sat, 2019-03-30 at 13:33 +0100, Cyril Brulebois wrote: > Heya, > > Chris Boot <bootc@debian.org> (2019-03-30): [...] > > I've also had a thought, and I can't remember if we've considered it > > already: do the environment variables get preserved in > > /proc/1/environ, even if busybox ash can't grok them? Could d-i be > > modified to pull them from there? > > Indeed, /proc/1/environ seems to have everyone! Please note that /proc/$pid/environ is a live view of the region of a process's virtual memory where the kernel originally wrote its environment strings. The process is free to overwrite or even unmap this memory at any time. (Even if it doesn't do that, any additions to its environment will necessarily be outside that region.) So I don't recommend using /proc/1/environ if you can avoid it. Ben. -- Ben Hutchings Design a system any fool can use, and only a fool will want to use it.
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