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Old 03-07-2015, 02:36 PM   #1
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Question Is uswsusp (suspend-utils) usable without initramfs or initrd?

"uswsusp" (aka suspend-utils-1.0, or s2disk and s2ram) is a userland frontend for the kernel's "swsusp" suspend/hibernate/resume feature.

Have you compiled uswsusp for use without an initramfs or initrd?

The source's HOWTO states "It is possible to use the suspend tools without any initramfs/initrd images, but it's dangerous and will not be documented here."
Old 03-29-2015, 02:37 PM   #2
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The suspend tools don't use initramfs per se; but suspend-to-disk is useless without a way to resume-from-disk.

The current recommended way is to add a resume invocation into initramfs stage-1 init, without init it may still be possible by using kernel parameter, but the setup is more complex, probably requires swap not to be on device-mapper devices (like LVM2), and may break with future kernel updates.



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