49 lines
2.4 KiB
Groff
49 lines
2.4 KiB
Groff
How to upgrade from 1.7.2 to 1.7.4.
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First, the 'setup' script that used used for a normal installation now
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notices that a Minix system is already present and will offer to "upgrade"
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it. This means that is will save the contents of /usr/ in /usr/.old/ and
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then install normally. So the root file system is replaced, /usr is filled
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with new stuff, and you can rescue some old files from /usr/.old/.
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If you'd rather replace the source and recompile like real programmers do,
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then here is the list of steps to take:
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Note: Things you have to do as root are marked with a # sign. The ! sign
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marks the actions of bin.
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# Replace the sources, that's /usr/include, /usr/man, and /usr/src, with
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the 1.7.4 sources by extracting the SYS.nn images in the normal way.
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(Don't forget to move or remove the 1.7.2 stuff.)
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! All 1.7.4 commands can run under 1.7.2, and all 1.7.2 commands can run
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under 1.7.4 if BINCOMPAT and SRCCOMPAT are set to 1 in <minix/config.h>.
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Nothing really interesting changed in this upgrade to make things difficult.
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! Move to /usr/src/lib and type 'make install'. You need new libraries
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for the new kernel.
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! Customize /usr/include/minix/config.h to add or remove drivers. In
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/usr/src/tools type 'make hdboot'. The /minix file should automatically
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be transformed into a directory containing both the old 1.7.2 and the
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new 1.7.4 kernel. The newest of these two is chosen on boot. Try it.
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If it doesn't work then 'image=minix/old-image' is the way to recover if
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it fails.
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! If it works then halt the system again to return to the boot monitor
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prompt. Now set 'rootdev' to the same value as 'ramimagedev'. If your
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system is a 286 then set the RAM disk size with 'ramsize' to as much as
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you can spare up to 512 Mb for the so-called "second level cache".
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(Minix-386 should have been configured with a large primary block cache.)
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Type 'save' to record the changes. Boot the system.
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! Your system should now be running 1.7.4. Install the commands from CMD.nn
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and use 'make install' in /usr/src to recompile the rest of the system.
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# Run 'checkhier' to check your top level directory tree. It suggest
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commands to execute to fix descrepancies in the top level directory
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tree.
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# Compare all files in /usr/src/etc with those in /etc. Some may have
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changed and should be replaced. Be careful not to lose changes you
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have made to files in /etc.
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