#dual boot encrypted Linux won’t start up

1 messages · Page 1 of 1 (latest)

wide axle
#

enable CSM in BIOS and try to boot from legacy hard-drive

#

if that does work, but Windows needs UEFI, then I would reinstall linux

#

only one efi per disk

#

well the very first step is turn off Windows Fast Startup

#

second step is go in BIOS SETTINGS at power-on time:

#

turn off : 1) secure boot 2) bios quick boot 3) CSM aka Legacy

#

yes

#

open a admin-mode command prompt, then type powercfg -h off

#

on one disk?

#

easiest thing is dontttttttttttttt make any partitions ahead of time

#

Mint will let u do that in intaller, with using the "alongside Windows " option

#

it should, pretty sure

#

it WILL make a separate partition anyway

#

then go manual

wide axle
#

step 1: open a admin-mode command prompt, then type powercfg -h off to kill Fast Startup in Windows CLI

#

it might not have quickboot. check all the categories

#

keyword: boot mode

#

it's there in pic

#

change "both" to just uefi

#

ya

#

save settings

#

boot uefi usb

#

the rest u know.. remember only ONE ESP for both OS

#

page 5 in setup pick the existing efi partition for bootloader near bottom

#

1st one

#

yes

#

yep

#

write down on paper all passwrds exactly. should go fine

#

ya this is the advanced/manual setup thing on page 5

#

u dont need p5

#

use the same partition Windows uses for Boot.

#

it should already say ESP beside it

#

scroll up so i see all the nvme partitions from the beginning

#

u can actually delete p5, dont need to waste 1 GB..

#

p1 should have the ESP note beside it.. and the only Linux one should just be ext4 and /

#

in its own file system. it reads the ESP first to see a map of bootloaders, and they tell it where.

#

just make the bottom dropdown for bootloader show p1

#

nvme0p1 for bootloader.. ya the rest is fine

#

oh see that I dont know about.

#

u'll have to research that yourself. regarding where to put the bootloader.

#

and yes likely u'll have to do what it says there to make other partn'

#

ya

#

i'm not sure if bootloader must be directed to go on p1, OR that new /boot partition u have to additionally make

#

if it wasn't encrypted, it's easy how I said, but like this.. idk

#

trial and error or study online somewhere for it

#

only 2 possibilities.. I'm really thinking it should still go on p1

#

so p1

#

idk if that article took into account dual-booting.

#

do u have a second disk that could go in that same computer?

#

in which case, dual-drive dual-boot. Encryption on the second. Independent bootloaders.

#

and the 2nd disk will be easy cuz u just let it do it all automatically

#

see in the BIOS boot options again. there must be an entry. if not.. i guess it has to go on that /boot partition in this case, but i really dont think so.

#

or see if u can live with just /home encryption

#

do the home encryption dual boot.

#

that will likely need its own separate ext4 partition mounted as /home

#

u have lots of space. i'd give it 100 GB for root (this holds programs and libraries that grow with time) and whatever for home... 500 GB? or all the rest.. up to u

#

what do u expect to do on linux? Huge games?

#

you split the space 50/50 (not counting Windows)

#

plus leave some room for Windows to grow.

wide axle
#

oh .

#

then try the Boot Repair utility in the live USB of Mint.

#

✅

#

start menu

#

the mint menu

#

get to the desktop.

#

one moment

#

see this link. follow Method 1. Go back in Windows and check. I have suspicion. #1193345280733622272 message

#

hmm

#

ok do that command again, in admin command prompt

#

the one stated in Method 2

wide axle
#

how do u mean failed?

#

yeah if u did method 2 to kill faststart

#

and the command prompt did it successfully with no objections, the run boot repair tool. do a summary in it, save it, share here

#

yes

#

what's the summary say?

#

ok I need about 15 minutes break. can u save that text file, then log to Discord on Firefox in the live system, and send it here plz. i'll have a look after.

#

or see if the Summary tool can give u a weblink. (connect to internet first and retry, then upload the report to the online service) then put the unique URL to it here.

#

ok i'll be back later

wide axle
#

I had a look at the Summary. I would recommend you turn your USB stick into a Ventoy USB, so you can add two tools to it.

#

either that, or you need to give up two USB drives.

#

Ventoy will let you do it all with one.

#

but u should have
a) a bootable .img file of SuperGrub2 Disk (google it)
b) the Linux Mint ISO (just in case of any other emergency)

#

once you boot Supergrub up, you'll see an orange screen. You will pick something like boot available operating systems, then scroll down a long list.. the item u want to select and press Enter on is in this picture

#

in blue.

#

Until you figure out how to unlock the NVRAM, u will need to boot Linux Mint for daily use with that orange screen method and stick.

wide axle
#

I believe that will get you to GRUB, and to finally boot Mint. Note that you will need to put your home decryption password upon request after grub at some point.

wide axle
#

it's up to u

#

it's being very difficult with Windows. more than usual.

#

what kind of computer is it exactly?

#

a laptop eh

#

does it have USB3 or higher?

#

hmm..

#

if u could buy a cheap USB enclosure for SSD, and cheap ssd to put in it, and some velcro-tape.. u could do a little strap on drive.

#

3.x enclosure

#

if not, just use it for a few weeks or whatever with the Supergrub starter.. if u like it and wanna go full linux, then u decide

#

yeah for reaching Windows it's easy enough at this moment.. u just pull the usb key out.. and it starts Windows

#

just for Linux.. u will need that starter. (supergrub) and dont reboot unless u really have to.

#

idk.

#

is this Windows u have on it the factory one?

#

I'm thinking yes, based on all the junk I saw in summary

#

was the old SSD a 2.5 inch SATA model?

#

kk

#

maybe it was Windows 10?

#

apparently 😄

#

something's locked the NVRAM. that's a semi-permanent memory on ur motherboard

#

if u want to wipe it, boot Linux live usb, go to "gparted" program,, pick the drive in box, then go to Device menu and make a new partition table in GPT style.

#

books 😉

#

the important n friendliest way is to install fresh Windows first, then turn off alllllll the stuff we talked about, and then install Linux.

#

if u want to do the totally fresh install of both OS onto the nvme

#

yep from what I remember. those are the usual suspects.

#

i just listed the steps

#

key point , keep it in GPT partition scheme

#

if and when u redo the p-table

#

sleep on it i guess.

#

yes

#

how i said

#

yes.

#

I think u can also probably just do the normal "alongside" install of Linux, and then encrypt the home folder LATER.. but don't quote me. u can research that possibility

#

or it might offer encryption even in the "alongside" option.

wide axle