a little help for that ones who run nodes on linux ubuntu
following script stop node and fix blockchain automatic including downloading the proper chain files





cd ~
diamond-cli stop
ping -c 20 1.1.1.1
rm -rf .DMDV3/chainstate/
rm -rf .DMDV3/blocks/
apt-get update
apt-get --yes install megatools unzip tar wget
#below megadl is normal but ubuntu megatools isnt updated for new mega links so until that is done the wget direct of megatools is needed
#megadl https://mega.nz/file/klwFGB4a#HqlUkQgYlHqRu6_rBonsf3Off9X6lTBMjDBg35JN3RM
wget https://megatools.megous.com/builds/experimental/megatools-1.11.0-git-20200503-linux-x86_64.tar.gz
tar -zxvf megatools-1.11.0-git-20200503-linux-x86_64.tar.gz
./megatools-1.11.0-git-20200503-linux-x86_64/megatools dl 'https://mega.nz/file/klwFGB4a#HqlUkQgYlHqRu6_rBonsf3Off9X6lTBMjDBg35JN3RM'
unzip chainstate_block_dmd_20200817.zip -d .DMDV3/
diamondd
watch -n -5 diamond-cli getinfo
cd ~







copy all lines and paste them at once into ur console
if some deependcies failing and installed at first run just do it a second time and it will work