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Invalidating stale software suspend images gentoo

ro resume=UUID=cd XX--X18 resume_offset=66050 # for grub2: sudo -b gedit /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="...

resume=UUID=cd XX--X18 resume_offset=66050" sudo update-grub -y # Answer "use maintainer version" if it asks sudo update-initramfs -u APPENDIX - SAME OR SEPARATE FILES FOR SWAP AND HIBERNATION?

Now let's run the tools to make them work: For pre-grub2: Verify that all your kernel stanzas (menu entries) got updated in /boot/grub/(or in /boot/grub/for grub2) with resume=...

So I presume you mean if I want a 512 Mb swap file, I would do 512000/1024= k B ? Just keep using corresponding /dev/sd XX instead of /swapfile. I've heard that dell though fixed this on some of their models. Before the tutorial i had the hibernation button, but before AND after this tutorial, my hibernation and sleep mode never worked. One prerequisite of this tutorial is to have working hibernation. It probably fails due to one or more of the device drivers.Some argue rightfully for 2 separate files - one for swap, one for hibernation.Swapfile approach should make it very easy to have 2 separate files and avoid problems.There is some controversy going on in regards to using the same file or partition for both swap and hibernation.If swapfile is not big enough, hibernation may fail, depending on how many applications and documents are open.When your swapfile file is too small for your session (you have too many applications running with a lot of open documents), you could loose it all if you try to hibernate and it fails. Also you should check your bios settings (press DEL key while powering up on most systems) - it may have some USB settings buried deep into menus somewhere.In my case it locks up when hibernation stops due to lack of space in the swapfile - I need to power-cycle. If not there, try finding firmware/bios update on manufacturer website.For RAM of size N Bytes we will need a swapfile size of N to 2*N Bytes for both virtual memory and hibernation to work properly.Having swap larger than 2*N Bytes is usually unnecessary and just wastes space, unless you are planning to upgrade RAM in the near future.You can rerun this HOWTO prior to RAM upgrade, or allocate enough swap space now.The swapfile size is equal to [count*bs] (in Bytes), So XX = desired swap size in Bytes / 1024 (bs parameter implies Bytes). count=2M or count=2048K will both result in 1024*2M=2G (note that count parameter has special decoding of multipliers - adding letter B changes from computer 1024 to metric 1000, i.e 1M = 1024*1024, while 1MB=1000*1000).


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