Package: gddrescue Version: 1.21-1 Severity: important Dear Maintainer,
* What led up to the situation? I posted on superuser because this looks to me like a bug https://superuser.com/questions/1280671/gddrescue-fill-mode-with-a-map-file-of-0x00000000-0x608336000-has-left-the I first ran this command: ddrescue --force /dev/sda /dev/null HGST_RMA.map I just wanted a map file for blanking (therefore /dev/null). I interrupted the run towards the end (Ctrl+C'd it). Then I decided to blank the disk (/dev/zero): $ sudo ddrescue --force --fill-mode=+ /dev/zero /dev/sda HGST_RMA.map GNU ddrescue 1.21 Press Ctrl-C to interrupt Initial status (read from mapfile) filled size: 266742 MB, filled areas: 43 remaining size: 233363 MB, remaining areas: 151 Current status filled size: 500106 MB, filled areas: 194, current rate: 55115 kB/s remain size: 0 B, remain areas: 0, average rate: 71200 kB/s current pos: 500107 MB, run time: 54m 37s Finished Then I ran: $ fdisk -l /dev/sda Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0xbf7dbd9f Device Boot Start End Sectors Size Id Type /dev/sda1 2048 62916607 62914560 30G 83 Linux /dev/sda2 62916608 67110911 4194304 2G 82 Linux swap / Solaris /dev/sda3 67110912 976773167 909662256 433.8G 83 Linux This is what the initial bit of my map file looks like: # Mapfile. Created by GNU ddrescue version 1.21 # Command line: ddrescue --force --fill-mode=+ /dev/zero /dev/sda HGST_RMA.map # Start time: 2017-12-28 17:37:14 # Current time: 2017-12-28 18:31:57 # Finished # current_pos current_status 0x7470BFD000 + # pos size status 0x00000000 0x608336000 + 0x608336000 0x00001000 - 0x608337000 0x380B8DD000 + 0x3E13C14000 0x00001000 - 0x3E13C15000 0x00224000 + By my own estimate the partition table should have been wiped clean because of the 0x00000000 0x608336000 + But that didn't happen.. -- System Information: Debian Release: 9.3 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-4-amd64 (SMP w/2 CPU cores) Locale: LANG=en_IN, LC_CTYPE=en_IN (charmap=UTF-8), LANGUAGE=en_IN (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gddrescue depends on: ii libc6 2.24-11+deb9u1 ii libgcc1 1:6.3.0-18 ii libstdc++6 6.3.0-18 gddrescue recommends no packages. gddrescue suggests no packages. -- no debconf information