Hi, I am in troubles as I cannot use my computer. Black screen.
Previous troubles was:
Root does not have enough space.
I free 75 GB
And, now this trouble!
Update. PREVIOULSY I had an issue with System update.
See my thread.
Thank you for your help.
It’s quite urgent.
On 13 Pro on Dell i5 and GTX card.
Jose
Perhaps some ideas can help you from this thread. I am unfortunately not familar with this topic to help you:
Thanks.
I don’t think we have a dedicated partition for root 
On forum.ubuntu-fr.org, we have this solution.
Regain access with live usb,
Terminal:
snap-store --quit
Snap refresh
José
The commands (no.1 and no.2) of the first link in post 2 you can use to become a little bit free space:
"boot into Advanced Options for Zorin then select the (recovery) option and then arrow key to Drop to root prompt (This avoids adding any new files to root when you boot).
sudo apt clean && sudo apt autoremove
Clear out old logs:
sudo journalctl --vacuum-size=200M
"
Perhaps you have silmilar options in grub menu in Zorin 13.
Thanks for your feedback.
My first issue is how to get back control of this PC!
Unable to have a Live usb key start!
No boot with USB key? Which one I have to select?
If I want to add a boot, no choice for USB key!
I think, the trouble is here, with the system update issue!
I reported here: Failed To Update on Zorin OS 17.3 Pro - #10 by Ponce-De-Leon
Thank you for your help.
José
How can I have this option?
The only screen I have is
I can open the PC configuration Screen with F2 or F12
Can you enter "shutdown now" or force shutdown with power button if nothing else is possible?
The advanced options are only shown when you enter grub menu at boot. On dualboot you can see the grub menu with advanced options, when you have no dualboot then press esc (or sometimes tab) repeated when you have EFI or left shift key when you have legacy BIOS at boot.
@Aravisian
After setting "Drop to root prompt" is there a further command needed to give write permissions ? I've never used this mode but read about recovery mode the following:
"The root partition is mounted read-only. To mount it read/write, enter the command
"mount -o remount,rw /"
"
That should not be needed in any case. The commands you gave above are instructions, not write commands.
In addition, the O.P. is spot on about Snap Packages filling Root causing him to run out of space.
If it was me, I would clear out any unused Snaps - or... Switch to Flatpak if the O.P. wants the latest versions of packages since Snap includes *all dependencies with heavy redundancy whereas Flatpak only brings the needed dependencies, sharing them with other Flatpaks.
Hi thanks
What I have been able to do is to use a USB live with UEFIxxx I got from F12 key
I have used a Zorin Lite for a try...
But I cannot access to my user account!
I cannot use terminal on my main account!
@jre10, please boot your existing install using the above method, not a LiveUSB at this time.
Instead of booting fully (Which will hang), boot to the Grub menu, then select Advanced Options
From there select the Zorin on -kernel- (recovery)
From the Recovery Menu, arrow key down to Drop to root prompt to use the Terminal.
The only way I have to restart the PCis to do a hard switch off (10 seconds)
Whan i retart start it, I have
Dell splash screen 5 seconds
Zorin logo, 5 seconds
and Black screen, about one minute
Then error message!
The only way to get a screen is F2 or F12.
José
From this point, try tapping tab key.
If the tab key does not work, try tapping esc key. These two keys are used to engage the Grub Menu on EFI boot if the menu is set to hidden (This is partly why I keep my setup with the menu set to always show. I want it available when I need it.)
If using MBR (Legacy) boot, hold the left shift key, instead.
I use a Ventoy Key.
I have some tools (Grub2, EFI...) but I understand only for the key, not my computer
José
Ventoy is the usb stick. Don't put it into your computer at boot.
But what do you suggest?
Thanks for your time.
Set the boot options in your BIOS so that the computer boots from your normal drive. Then boot and press the keys (shift, esc or tab-you'll have to try) like a wild one, many many times in a row until grub menu appears.
