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Adding ZFS Snapshot support #32

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Adding ZFS Snapshot support #32

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b82ae49
adding in zfs snapshot support
joriankarstark Jul 9, 2020
746ee62
fixing output messaging and removing some debugging code
joriankarstark Jul 9, 2020
0e83c52
Merge branch 'master' into zfssupport
joriankarstark Aug 4, 2020
6216e29
Switching from default zfs utils to zsysctl. Simplified things a lot.
joriankarstark Aug 30, 2020
210ecb1
Fixing typo in if statement.
joriankarstark Aug 30, 2020
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19 changes: 19 additions & 0 deletions rolling-rhino
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,20 @@ function fancy_message() {
esac
}

# Take a zfs snapshot if zfs on root
function take_zfs_snapshots() {
ZFS_INSTALLED=$(dpkg-query --show --showformat='${db:Status-Status}\n' 'zfsutils-linux' 2>&1)
ZSYS_INSTALLED=$(dpkg-query --show --showformat='${db:Status-Status}\n' 'zsys' 2>&1)

if [[ $ZFS_INSTALLED == installed && $ZSYS_INSTALLED == installed ]]
then
echo ""
fancy_message info "ZFS on root detected. Taking a snapshot before making any changes:"
zsysctl state save
echo ""
fi
}

echo "Rolling Rhino 🦏"

# Check if the user running the script is root
Expand All @@ -55,6 +69,7 @@ while [ $# -gt 0 ]; do
esac
done


if which lsb_release 1>/dev/null; then
fancy_message info "lsb_release detected."
else
Expand Down Expand Up @@ -113,6 +128,9 @@ fancy_message info "All checks passed."
read -p "Are you sure you want to start tracking the devel series? [y/N]" -n 1 -r

if [[ ${REPLY} =~ ^[Yy]$ ]]; then

take_zfs_snapshots

HOST_ARCH="$(uname --machine)"
if [ "${HOST_ARCH}" == "x86_64" ]; then
ARCHIVE="http://archive.ubuntu.com/ubuntu"
Expand All @@ -121,6 +139,7 @@ if [[ ${REPLY} =~ ^[Yy]$ ]]; then
ARCHIVE="http://ports.ubuntu.com/ubuntu-ports"
SEC_ARCHIVE="http://ports.ubuntu.com/ubuntu-ports"
fi

cp /etc/apt/sources.list /etc/apt/sources.list.${OS_CODENAME}
cat << EOF > /etc/apt/sources.list
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
Expand Down