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Merge branch 'master' of https://github.com/QubesOS/qubes-doc

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Lemlay 2020-06-05 02:16:39 -04:00
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troubleshooting/out-of-memory.md
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@ -19,29 +19,28 @@ qvm-console-dispvm <VMname>
If this does not work, check the size of /var/lib/qubes/qubes.xml. If it is zero, you'll need to use one of the file backup (stored in /var/lib/qubes/backup), hopefully you have the current data there. Find the most recent one and place in /var/lib/qubes/qubes.xml instead of the empty file. If this does not work, check the size of /var/lib/qubes/qubes.xml. If it is zero, you'll need to use one of the file backup (stored in /var/lib/qubes/backup), hopefully you have the current data there. Find the most recent one and place in /var/lib/qubes/qubes.xml instead of the empty file.
In any case you'll need some disk space to start the VM. Check `df -h` output if you have some. If not, some hints how to free some disk space: In any case you'll need some disk space to start the VM. Check `df -h` output if you have some. If not, here are some hints how to free some disk space:
1. Clean yum cache: 1. Clean yum cache.
~~~ ~~~
sudo yum clean all sudo yum clean all
~~~ ~~~
1. Delete .img files of a less important VM, that can be found in 2. Delete `.img` files of a less important VM, which can be found in `/var/lib/qubes/appvms/`.
Then, when the system is working again, clean up the rest.
/var/lib/qubes/appvms/. Then, when the system is working again, cleanup the rest with: ~~~
qvm-remove <VMname>
~~~
~~~ With this method, you lose the data of one VM, but it'll work more reliably.
qvm-remove <VMname>
~~~
With this method you lose the data of one VM, but it'll work more reliably. 3. Decrease the filesystem safety margin (5% by default).
1. Decrease filesystem safety margin (5% by default): ~~~
sudo tune2fs -m 4 /dev/mapper/vg_dom0-lv_root
~~~
~~~ 4. Remove some unneeded files in dom0 home (if you have any, most likely not).
sudo tune2fs -m 4 /dev/mapper/vg_dom0-lv_root
~~~
1. Remove some unneeded files in dom0 home (if you have any, most likely not).