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sudo apt-get update
sudo apt-get install squashfs-tools |
Make a squashfs file out of your desired JVM:, use LZMA2 compression rather than gzip.
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cd /usr/lib/jvm
sudo mkdir ramdisk
mksquashfs /usr/lib/jvm/java-8-oracle /usr/lib/jvm/ramdisk/java-1.8.0.91-oracle.sqsh -comp xz |
At this point you have an existing JVM squashed in .sqsh file with a roughly size of 176M:
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user@machine:/media$ ls --block-size=M -al /usr/lib/jvm/ramdisk/java-1.8.0.91-oracle.sqsh
-rw-r--r-- 1 user users 176M May 12 15:53 /usr/lib/jvm/ramdisk/java-1.8.0.91-oracle.sqsh |
Mount Point
Create a mountpoint for the ramdisk:
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sudo mkdir /media/ramdisk-java-8-oracle |
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