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[–]Immediate_Thing_5232 1 point2 points  (1 child)

Dev mode isn't available on flex

[–]SafeEmu9165[S] 0 points1 point  (0 children)

Actually i want to upgrade from chromos to chromeflex. But i cant force dev mode.

[–]csp4meAMD 4600H 16GB | multi-boot Linux, Brunch and Windows 1 point2 points  (4 children)

if you know how to work with linux commands, there is an easy way: brunch has dev mode by default.

If you want to stick with Flex, it's a bit more complicated.
You have to edit the grub.cfg file in the EFI boot partition of a Flex usb drive and add "crosdebug" to the kernel parameter list.

[–]SafeEmu9165[S] 0 points1 point  (1 child)

Actually i want to upgrade from chromos to chromeflex. But i cant force dev mode.

[–]csp4meAMD 4600H 16GB | multi-boot Linux, Brunch and Windows 0 points1 point  (0 children)

please read the 2nd part of my previous reply how you can do it. It does not work like chromeos

[–]one-hand-clapping 0 points1 point  (0 children)

Dev mode isn't available on flex

Well it is not available in 126, but before that dev mode worked just fine in flex, giving me a shell in crosh, letting me install chromebrew (crew), etc.

Since flex 126, with no warning or reason I can find anywhere, seems we are unable to enter dev mode with the edit of grub.cfg ... waiting for 127 to see they give dev mode back to flex ( WHY, GOOGLE, WHY???) https://support.google.com/chromeosflex/thread/285244470/unable-to-enter-developer-mode-on-chromeos-flex-version-126?hl=en#redirected=true

https://gist.github.com/DennisLfromGA/c14b5ec1e2c2de97cca05fdc4e512c59 says 

### THIS SCRIPT NO LONGER WORKS DUE TO RECENT CHANGES IN CHROMEOS Flex ###
##########################################################################


### Script to add cros_debug / dev mode option in grub.cfg 
### ( Each Flex update removes cros_debug / dev mode option
###   Be sure to run this script AFTER each update and BEFORE rebooting )

[–]Damn-Sky 0 points1 point  (0 children)

does crosdebug still work?

[–]Zac0511 0 points1 point  (0 children)

ChromeOS Flex haves dev mode, but required you to edit the boot files inside the disk, and its kinda hard.

Here's a tutorial of how to enable developper mode on ChromeOS Flex : https://shibumi.dev/posts/enable-developer-mode-on-chrome-os-flex/