Clone with mkusb
You can clone from a drive to another drive with
mkusb. Start via the graphical interface or with
where x is the device letter or the source in the cloning operation. The target will be selected in a safe way via menus.
- mkusb wraps a safety belt around
- if there is a GUID partition table, GPT, mkusb fixes the backup partition table at the tail end of the drive. (Otherwise you must do that manually for example with
After the cloning you can edit the partitions with
gparted. If you touch only the
casper-rw partition and the
usbdata partition (amd if an MSDOS partition table the extended partition), booting will not be affected.
Edit: How to edit the partitions to fill the drive.
- Be sure you have a backup (for example the original drive).
- Read how to use
- Boot from another drive
- Unmount all partitions on the target drive
gparted and check that there are no lock symbols on
/dev/sdb1 to the tail end (to the right)
- Drag its left border of
/dev/sdb1 to the left until the size is what you want
- Drag the right border of /dev/sdb5` to the right to use all remaining unallocated drive space. The two partitions should 'touch each other'.
- Check that things are as you want them.
- Click on the tick icon to start the actions.
- Please wait ... it will take a long time. Be sure there is enough power (do not run on battery).
If you cloned with
dd you need to repair the backup partition table at the tail end of the drive with
gdisk or maybe use gpt-fix.
gdisk command options cut from
| gdisk "$1"
"$1" should be replaced by the target device
/dev/sdx, if run directly (not within the shellscript).
These command letters are explained in
The crucial commands are
in the expert's menu
e Move backup GPT data structures to the end of the disk. Use this
command if you've added disks to a RAID array, thus creating a
virtual disk with space that follows the backup GPT data struc‐
tures. This command moves the backup GPT data structures to the
end of the disk, where they belong.
and in the the recovery & transformation menu
d Use main GPT header and rebuild the backup. This option is
likely to be useful if the backup GPT header has been damaged or
The other commands are verifying, moving between menus and writing.
Links added by the OP, @BlueSkies:
Unable to unmount a partition with GParted - is this a problem?
GParted cannot finish step 1
GParted showing now
After cloning with mkusb, copying partitions from the original USB stick and booting from the new-larger stick, I'm unable to access the usbdata.
Please advice. Thanks!
Advice: Please post the output of the following command lines (when booted from the new-larger stick),
sudo lsblk -f
sudo lsblk -m
sudo ls -l /mountpoint-to-usbdata
sudo ls -l /mountpoint-to-casper-rw
where you enter the actual mountpoints to see
This will help me understand what is the problem, so that I can suggest what to do next.
Please edit your original question to enter these output texts instead of here in my answer. Indent each line 4 characters in order to render the output as code. You can mark (high-light) the text and click on the
icon at the head of the editing window to make those indentations quickly.
Outputs of the four above-mentioned commands:
sudo lsblk -f
gives the following results
The other one (
sudo lsblk -m) outputs the following info:
The last two commands and results: