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--- miscscripts [2020/11/09 17:50]
dwheele [Partition and Format GPT]
+++ miscscripts [2023/01/21 18:13] (current)
dwheele [Partition and Format GPT]
@@ Line 4: / Line 4: @@
    # fdisk -l
+==== findmnt ====
+Detailed listing of mounts, mount points, and child directories.
+  > findmnt
 ==== List USB drives, mounted and unmounted ====
@@ Line 23: / Line 30: @@
    $ usb-devices
+==== Look at label of drive ====
+    # e2label /dev/sda1
+Change label
+    # e2label /dev/sda1 Boot
+From the /etc/fstab file:
+  # blkid
+  Use 'blkid' to print the universally unique identifier for a device;
+  this may be used with UUID= as a more robust way to name devices that
+  works even if disks are added and removed. See fstab(5).
 ==== dmesg - print or control the kernel ring buffer ====
@@ Line 35: / Line 60: @@
     # mount /dev/sdc1 /mnt/usb-drive/
-==== Partition and Format GPT ====
+==== Partition GPT with gdisk ====
+    # gdisk /dev/sdc
+==== Partition and Format GPT with PARTED ====
+This is somewhat difficult to use because the mkpart command sometimes gives alignment errors.
     $ sudo parted /dev/sdd
@@ Line 49: / Line 81: @@
     Number  Start  End  Size  File system  Name  Flags
-    mkpart primary 0 100%
+    mkpart primary 0% 100%
-    Warning: The resulting partition is not properly aligned for best performance.
+    (parted) quit
-    Ignore/Cancel?
-    i
+==== Create a Filesystem on the New Partition ====
+    # mkfs.ext4 -L offsitebackup /dev/sdd1
+==== Mount for Test Use ====
+    # mount /dev/sdd1 /mnt/offsitebackup
 ==== Copy ISO to USB stick ====
@@ Line 60: / Line 100: @@
    sudo dd if=/path/to.iso of=/dev/sdb bs=16M
+==== Mount to NTFS Drive with permissions for specific user and group ====
+NTFS does not have Linux-compatible permissions, so when you mount with a normal NTFS connection, you have wide-open permissions. To make the NTFS drive look like it has a specific owner and group, use something like this:
+   mount -o uid=userid,gid=groupid,dmask=022,fmask=133 /path/to/disk /mnt
+https://unix.stackexchange.com/questions/604674/chmod-is-not-working-on-ntfs-3g-partition
+===== rdfind =====
+This compares directories of files and decides which files can be removed due to an algorithm.
+-n Is a dry run mode only
+directory director - list of directories and files to compare. Items found first are the originals, and kept.
+  sudo rdfind -n true /var/nas/backup /var/archive/backup
+===== Remove empty directories =====
+  find /path/to/dir -empty -type d -delete
+===== Remove empty files =====
+  find /path/to/dir -empty -type f -delete

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