Re： Is there any way to STD in Debian?

["YOYO" <1530974299@qq.com>]

Hi Alexander, Eben, and everyone in list,

Thank you for your replies.

The Debian 12 is running in VirtulBox 7.0.20. And I only assigned 2048 MB RAM to it.

I'm pretty sure that I have setup a big enough SWAP of around 8 GB when installing Debian 12.

When I click "Sleep" button in Windows running in VirtualBox 6.x, the virtual machine will light the screen up again once the screen is off. However, in this case, Debian 12 doesn't light the screen up nor power-off the virtual machine. So the virtual machine goes into a state that OS is not running, power is still on. And I have no way to wake the OS up. All I can do is to fouce power-off and re-start it, just to found all running tasks gone.

Best Regards,

Richard

------------------ Origin ------------------

From: "Alexander V. Makartsev" <avbetev@gmail.com>;

Time: 2024年9月26日(Thu) 7:04pm

To: "debian-user"<debian-user@lists.debian.org>;

Subject: Re: Is there any way to STD in Debian?

On 26.09.2024 14:51, YOYO wrote:

Hello everyone,

Recently, I need to cut off power supply with all my running tasks saved.

But it seems that the hibernate mode provided in Debian only allows me to 

Suspend to Ram(STR, or S3 mode in ACPI).

Is there any way to Suspend to Disk (STD, or S4 Mode in ACPI) in Debian?

Thank you for your replies in advance.

Best Regards,

Richard

Do you have a swap partition? It has to be sufficient in size and is necessary for Hibernation to work.
You need to edit "/etc/initramfs-tools/conf.d/resume" file to provide an UUID of a swap partition, or a path,
in case of LVM, to a swap partition and run:
# update-initramfs -u

    Example for traditional disk partitioning scheme:
$ cat /etc/fstab | grep -iE "swap"
UUID=e990fa6d-3f82-4d65-b6a1-542e240718fc     none    swap    sw      0       0

$ cat /etc/initramfs-tools/conf.d/resume
RESUME=UUID=e990fa6d-3f82-4d65-b6a1-542e240718fc

    Example for LVM partitioning scheme:
$ cat /etc/fstab | grep -iE "swap"
/dev/vg0-nvme/lv1-swap  none    swap    sw      0       0

$ cat /etc/initramfs-tools/conf.d/resume
RESUME=/dev/vg0-nvme/lv1-swap

--

 With kindest regards, Alexander.

 Debian - The universal operating system https://www.debian.org

------------------ Origin ------------------

From: "eben" <eben@gmx.us>;

Time: 2024年9月26日(星期四) 晚上9:32

TO: "debian-user"<debian-user@lists.debian.org>;

Subject: Re: Is there any way to STD in Debian?

On 9/26/24 07:04, Alexander V. Makartsev wrote:
> Do you have a swap partition? It has to be sufficient in size and is
> necessary for Hibernation to work.

While that is the easiest way by far, I was recently told that the
"resume-from" kernel option can enable hibernation to a non-swap area.  I
think.  I have not done this.  Look in the archive for a thread this month
(9/2024) entitled "hibernate area".

But yes, I use hibernation every night.

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