omarmciver · July 18, 2022 19:26 · Jul 18, 2022
diff --git a/Replicate Linux disk to new disk - single partition b/Replicate Linux disk to new disk - single partition
@@ -0,0 +1,30 @@
+# Usage copydisk.sh <newdiskdev> <olddiskmountpoint> <temporary mountpoint>
+#  e.g. copydisk.sh /dev/sdc /datadisk /tmpdatadisk
+echo New disk attached is at $1
+echo Existing disk mount point is at $2
+echo Temporary mount point for data copy is at $3
+
+## Add partition table
+parted $1 mklabel gpt
+## Create partition ext4 100% of the available space
+parted $1 mkpart primary ext4 0% 100%
+## Format the ext4 partition
+mkfs.ext4 $11
+## Create a mount point
+mkdir $3
+## Mount the partition
+mount $11 $3
+## Copy the data from the old partition to the new partition
+cp -p $2 $3
+## Unmount the temporary partition
+umount $3
+## Unmount the old partition
+umount $2
+## Backup existing fstab
+cp /etc/fstab /etc/fstab.bak
+## Remove the old fstab partition
+grep -v $2 /etc/fstab > tmpfile && mv tmpfile m/etc/fstab
+## Add the new fstab entry
+echo "$1       /$2      ext4    defaults        0 0" | sudo tee /etc/fstab -a
+## Remove the temporary mount point
+rmdir $3