From 747055c29436a0fc1028414028e89d9c10ac875e Mon Sep 17 00:00:00 2001 From: Enjeck Cleopatra <32180937+PROTechThor@users.noreply.github.com> Date: Sat, 10 Oct 2020 18:10:19 +0100 Subject: [PATCH] Minor changes --- user/troubleshooting/vm-troubleshooting.md | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/user/troubleshooting/vm-troubleshooting.md b/user/troubleshooting/vm-troubleshooting.md index ece7b968..5fbbf2a4 100644 --- a/user/troubleshooting/vm-troubleshooting.md +++ b/user/troubleshooting/vm-troubleshooting.md @@ -1,6 +1,6 @@ --- layout: doc -title: Suspend/Resume Troubleshooting +title: VM Troubleshooting permalink: /doc/vm-troubleshooting/ redirect_from: - /doc/remove-vm-manually/ @@ -10,6 +10,8 @@ redirect_from: ## VM Kernel troubleshooting ## +This troubleshoot applies to the non-default kernel choice described in the [Managing VM docs](https://www.qubes-os.org/doc/managing-vm-kernel/#using-kernel-installed-in-the-vm). + In case of problems, you can access the VM console using `qvm-console-dispvm VMNAME` in dom0, then access the GRUB menu. You need to call it just after starting the VM (until `GRUB_TIMEOUT` expires); for example, in a separate dom0 terminal window. @@ -19,9 +21,9 @@ You can always set the kernel back to some dom0-provided value to fix a VM kerne ## Qubes starts, but no VMs load ## -This issue may occur if a dom0 update is interrupted halfway through and/or a hard power off is done without shutting down Qubes, which results in files getting corrupted. -In this case, the best fix is to reinstall Qubes and restore your files from a backup. -Even if you have not backed up data in a while, you should be able to mount the volumes to pull data from them. +First, try to start a particular VM, check any failure message and direct further steps based on that. + +This issue has been seen to occur if a dom0 update is interrupted halfway through and/or a hard power off is done without shutting down Qubes, which results in files getting corrupted. ## Can not uninstall a VM / “ERROR: VM installed by package manager: template-vm-name” @@ -65,6 +67,7 @@ One solution is to add a dummy interface to allow the package to install correct ## "Cannot connect to qrexec agent" error ## -If you face this error when starting a VM, it may be due to too little initial memory. -A solution is to increase the initial memory from 200MB to 400MB by navigating to VM settings » Advanced » Initial memory. +If you face this error when starting a VM, look into the VM logs at `/var/log/xen/console/guest-VMNAME.log`. +Common reasons that may be revealed are: too low memory, corrupted files or a VM crash on startup. +If the error occurs as a result of too little initial memory, increase the initial memory from 200MB to 400MB by navigating to VM settings » Advanced » Initial memory.