expand hard disk in linux vm\\
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-merge all checkpoints\\
-shutdown VM\\
-make a copy of your virtual hard drive and store in another location  just in case\\
-rightclick VM, seetings, edit\\
-virtual hard drive from left menu\\
-edit\\
-click next\\
-choose expand, click next\\
-select new size, click finish, click OK\\
-start VM\\
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-ssh to VM\\
-sudo fdisk /dev/sda\\
-p to list partitions\\
-d to delete the partitions, then 1, d, 2, etc (data will not be lost)\\
-n for a new partition\\
-p for primary, 1 for 1st, 2048 for starting sector, largest possible for last sector\\
-if asked partition contains ext4 signare do you want to remove? choose no\\
-p to verify partitions and size\\
-a to make the partition bootable\\
-w to write changes. may get a message about re-reading the table failed. this is ok.\\
-sudo reboot\\
-wait (it takes time to apply the changes, so if ssh doesn't work immediately, wait. connecting through hyperv to watch the messages will show it is working).\\
-sudo resize2fs /dev/sda1 (this expands the partition to use the rest of the space we just reated)\\
-df -h to confirm\\
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-if your swap partition was deleted, create a swap file\\
-sudo fallocate -l 512M /swapfile\\
-sudo chmod 600 /swapfile\\
-sudo mkswap /swapfile\\
-sudo swapon /swapfile\\
-sudo swapon --show to verify\\
-sudo cp /etc/fstab /etc/fstab.bak to backup the fstab\\
-echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab to make your swap perminant\\
-sudo nano /etc/sysctl.conf\\
-add to the end:\\
vm.swappiness=10\\
vm.vfs_cache_pressure=50\\
-save\\
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go back into fstab and remove old swap partition uuid\\
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references:\\
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[[https://www.zubairalexander.com/blog/how-to-expand-hard-drives-in-hyper-v-virtual-machines]]\\
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[[https://askubuntu.com/questions/116351/increase-partition-size-on-which-ubuntu-is-installed]]\\
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[[https://www.digitalocean.com/community/tutorials/how-to-add-swap-space-on-ubuntu-16-04]]\\
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