Now boot-conf can also receive parameters to be passed to the kernel
being booted. The syntax is the same as in the boot command, so one
boots /kernel.OLD in single-user mode by typing:
boot-conf /kernel.OLD -s instead of
boot-conf -s /kernel.OLD
The syntax still supports use of directory instead of file name, so
boot-conf kernel.OLD -s
may be used to boot /boot/kernel.OLD/kernel.ko in single-user mode.
Notice that if one passes a flag to boot-conf, it will override the
flags set in .conf files, but only for that invocation. If the user
aborts the countdown and tries again without passing any flags, the
flags set in .conf files will be used.
Some factorization was done in the process of enhancing boot-conf,
as it has been growing steadly as features are getting added, becoming
too big for a Forth word. It still could do with more factorization,
as a matter of fact.
Override the builtin "boot" with something based on boot-conf. It will
behave exactly like boot-conf, but booting directly instead of going
through autoboot.
Since we are now pairing kernel and module set in the same directory,
this change to boot makes sense.
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