I originally started with an initrd and later changed to initramfs.
I mount tmpfs to /newroot, populate /newroot, pivot_root to /newroot (via
pivot_root . initrd), kill off everything running on the old root and umount
/initrd.
When I boot and I load a ramdisk image via initrd, umount works and
everything continues. When I send a compressed cpio via initrd and umount,
the system hangs. No messages, no keyboard response, nothing. sysrq works,
but since the kernel I built was designed with size in mind, the information
isn't very useful.
When I do sysrq-t, it shows mount as running. Not actually sure if it is.
--
Lab tests show that use of micro$oft causes cancer in lab animals
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