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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> qvm-remove <VMname>
~~~ ~~~
With this method you lose the data of one VM, but it'll work more reliably. With this method, you lose the data of one VM, but it'll work more reliably.
1. Decrease filesystem safety margin (5% by default): 3. Decrease the filesystem safety margin (5% by default).
~~~ ~~~
sudo tune2fs -m 4 /dev/mapper/vg_dom0-lv_root 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). 4. Remove some unneeded files in dom0 home (if you have any, most likely not).