There is enough info in the net about this partition under Win7. It hosts the boot manager.

You seem to have an older PC with Bios or run your UEFI bios in CSM mode. Is this ASCII you are working with? What comes to my mind is that ntfs3g might be missing, though I would expect that it is installed automatically. Though this should not inhibit the display of the existing partitions.

What does blkid show?

Have you tried gparted?

Regards, Rolf

All current kernels have SMP enabled already since many years. Install it and you are done.

Regards, Rolf

I looked up my ASCII on a Ryzen 2700X platform with a NVME installation for Devuan and another SSD for Windows 7. Both installed in UEFI mode. I boot Devuan per default and get the choice in grub to boot Win7 if required.

I think you should create individual EFI partitions on the drives to have maximum decoupling.

Windows ignores other OSses. When you boot into Windows per default you normally have no choice. With some fiddling you may be able to boot other stuff from the Windows boot manager, but that can get screwed by updates. When I had a Debian and Windows7 on the same drive (without UEFI), I got some issues with Win7 updates that did not like grub in the MBR or even fail to update if Win isn't the only OS on the drive.

When you choose Devuan as default, run osprober (should run automatically actually), and this will enter Win10 into the grub menu, so you can select at boot time into which OS to boot. No issues with this setup.

My EFI Bios has the option to override the default an select from a menu which OS I want to boot.

Regards, rolfie

For ASCII you use the Debian Stretch package. Download it and install it with dpkg -i.

Good luck, Rolf

What you describe as your goal sounds very normal to me, and achieving this is possible. Well, I guess your problem is related to your crypttab, that looks very strange to me, looks screwed. I wonder how you created this, this hasn't been done via the installer.

Lets take your crypttab apart.
1.) vol1 as target name is unusual. The installed normally would name the target like sda2_crypt. Its just a name, and if the update-initramfs works ok, it should do the job.
2.) /dev/mapper/grp1-root sound like it isn't pointing to the luks container, this sounds more like you are listing the LVM container pointing to root. That cannot work. You should list there /dev/sda2, better even use the UUID of the encrypted partition.

You may try to fix this manually with a chroot if you know what you need to do.

The alternative is to start from scratch with an up to date ASCII CD or DVD. Don't worry about LVM, both have all you need on board. It does not matter if you use the cli or the graphical installer, normal or expert mode. It works with or without EFI, with msdos or gpt partitions. When you come to partitioning, choose manual. Create a /boot partition with extx file system and set size and parameters. Then create sda2 as volume for encryption. Configure the encrypted volume, let the installer erase it, set you PW. Then create the LVM on top of the encrypted volume, define the details, and go on with the installation. This is a very rough description. In the internet you can find detailled documentation with screen shots etc if your search for this. You may use Debian stuff that can be as old as Squueze or Lenny, the principle hasn't really changed. 

If you need more help on details, please ask.

rolfie

BTW: is there a font in Devuan repositories that can be used for the Logo in text like prociono in Debian?

rolfie

You can set up the guest as you like, as long as you use a simulated disk for the vbox.

rolfie

unetbootin was removed from Debian with I think Stretch.

Try your luck with: https://unetbootin.github.io/linux_download.html

rolfie

The pkla stuff goes back to the question if you have consoilekit or elogind working in the background (I assume you did not compile anything yourself). Please refer to https://dev1galaxy.org/viewtopic.php?id=1952 and https://dev1galaxy.org/viewtopic.php?id=2023.
That should give some insight and keywords for further research on the internet.

Good luck, rolfie

Update: still no ongoing issues, also my wife does not complain about her PC. Different HW, both identical setup with ASCII, Mate and Lightdm.

Maybe fixed by an update? Don't know....

Regards, rolfie

Maybe Mate 1.20 brings a *.pkla settings file that disables the Suspend. I used such a setting to actually disable Suspend, since I do not use it. Please read https://dev1galaxy.org/viewtopic.php?id=2023.

Regards, rolfie

Read this post, maybe it helps.

https://dev1galaxy.org/viewtopic.php?id=1804

Good luck, rolfie