I am building a mailserver and with all the steps, I want to image the drive at various 'checkpoints' so I can go back and redo from a particular point. The image is currently only 4GB on a 120GB drive. Fdisk reports:
Disk /dev/sdb: 111.8 GiB, 120034124288 bytes, 234441649 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x0000c89d
Device Boot Start End Sectors Size Id Type /dev/sdb1 2048 1026047 1024000 500M 83 Linux /dev/sdb2 1026048 2074623 1048576 512M 82 Linux swap / Solaris /dev/sdb3 2074624 6268927 4194304 2G 83 Linux
and parted:
Model: Kingston SNA-DC/U (scsi) Disk /dev/sdb: 120GB Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags:
Number Start End Size Type File system Flags 1 1049kB 525MB 524MB primary ext3 2 525MB 1062MB 537MB primary linux-swap(v1) 3 1062MB 3210MB 2147MB primary ext4
what dd params work?
dd if=/dev/sdb of=os.img bs=1M count=3210
?
thanks