First, connect to Ubuntu Live with SSH:
sudo apt-get update
sudo apt-get install ssh
sudo passwd ubuntu
List disks and partitions:
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
NAME FSTYPE SIZE MOUNTPOINT LABEL
loop0 squashfs 2.3G /rofs
loop1 squashfs 4K /snap/bare/5
loop2 squashfs 61.9M /snap/core20/1405
loop3 squashfs 81.3M /snap/gtk-common-themes/1534
loop4 squashfs 248.8M /snap/gnome-3-38-2004/99
loop5 squashfs 43.6M /snap/snapd/15177
loop6 squashfs 45.9M /snap/snap-store/575
loop7 squashfs 155.6M /snap/firefox/1232
loop8 squashfs 284K /snap/snapd-desktop-integration/10
sda 14.5G
└─sda1 vfat 14.5G /cdrom UBUNTU 22_0
sdb 298.1G
├─sdb1 vfat 200M EFI
└─sdb2 ntfs 297.9G /media/ubuntu/External HDD External HDD
nvme0n1 476.9G
├─nvme0n1p1 ntfs 529M Recovery
├─nvme0n1p2 vfat 100M
├─nvme0n1p3 16M
├─nvme0n1p4 ntfs 119.4G
└─nvme0n1p5 apfs 356.9G
df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 1.6G 2.2M 1.6G 1% /run
/dev/sda1 15G 3.5G 12G 24% /cdrom
/cow 7.8G 181M 7.6G 3% /
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 5.0M 8.0K 5.0M 1% /run/lock
tmpfs 7.8G 0 7.8G 0% /tmp
tmpfs 1.6G 144K 1.6G 1% /run/user/999
/dev/sdb2 298G 99M 298G 1% /media/ubuntu/External HDD
Then try dd:
cd /media/ubuntu/External\ HDD/
sudo dd if=/dev/nvme0n1p4 of=./nvme0n1p4.image
or with Pipe Viewer:
sudo apt-get install pv
sudo dd if=/dev/nvme0n1p4 | pv | dd of=./nvme0n1p4.image
or with compression:
sudo dd if=/dev/nvme0n1p5 status=progress | bzip2 > ./nvme0n1p5.image.bz2
restoring with decompression:
bzcat nvme0n1p5.image.bz2 | sudo dd of=/dev/nvme0n1p5 status=progress
383185695232 bytes (383 GB, 357 GiB) copied, 6650 s, 57.6 MB/s
748554888+0 records in
748554888+0 records out
383260102656 bytes (383 GB, 357 GiB) copied, 6653.1 s, 57.6 MB/s
