I'm trying to modify /etc/system, specifically to set ncsize to a higher value
than the default in order to get a larger DNLC and improve the DNLC cache hit
rate.
My test system is booting a standard joyent_20140724T221203Z image from a USB
key. Following
<http://dtrace.org/blogs/wesolows/2013/12/28/anonymous-tracing-on-smartos/>
I mounted the USB key on /mnt, I created a directory /mnt/override/etc, copied
/etc/system from /mnt/override/etc/system with some added comments. Then I
created a new entry in /mnt/boot/grub/menu.lst:
title Live 64-bit (text) OVERRIDE
kernel /platform/i86pc/kernel/amd64/unix -B
console=text,root_shadow='...myshadow...',smartos=true
module /platform/i86pc/amd64/boot_archive type=rootfs name=ramdisk
module /platform/i86pc/amd64/boot_archive.hash type=hash name=ramdisk
module /override/etc/system type=file name=etc/system
I can boot from the new entry, but my customized system file is not getting
picked up, and /etc/system still has the same contents as before.
Am I missing a step?
Thanks,
Chris
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