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Re: dd to linux partition
- From: Fergus <fergus at bonhard dot uklinux dot net>
- To: Cygwin ML <cygwin at cygwin dot com>
- Cc: Fergus <fergus at bonhard dot uklinux dot net>
- Date: Tue, 21 Dec 2010 06:39:59 +0000
- Subject: Re: dd to linux partition
>> dd if=/dev/sda1 of=/cygrive/f/sda1.img # windows, works!!!
>> dd if=/dev/sda5 of=/cygrive/f/sda5.img # linux, will not work
On my machine:
~> /usr/sbin/fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
..
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2048 16450528+ c W95 FAT32 (LBA)
/dev/sda2 2049 63488 493516800 83 Linux
/dev/sda3 63489 64512 8225280 82 Linux swap
/dev/sda4 64513 121601 458567392+ 5 Extended
/dev/sda5 64513 65536 8225248+ b W95 FAT32
/dev/sda6 65537 66560 8225248+ b W95 FAT32
/dev/sda7 66561 67584 8225248+ b W95 FAT32
/dev/sda8 67585 116736 394813408+ b W95 FAT32
/dev/sda9 116737 117760 8225248+ 83 Linux
/dev/sda10 117761 118784 8225248+ 83 Linux
~> dd if=/dev/sda2 of=./test.img count=1
1+0 records in
1+0 records out
512 bytes (512 B) copied, 0.043 s, 11.9 kB/s
Windows has to be made aware of any Linux partition(s) on your system.
From my experience "Ext2 Installable File System for Windows" works
really well. See http://www.fs-driver.org/
Fire it up and the Linux partition becomes totally accessible
(read-write) from Windows, and therefore from Cygwin. Incidentally
really useful for drag and drop, whatever, without going near Cygwin.
I've never tried it for other than ID b i.e. ext2; and only on the XP
platform. Maybe it is extensible (ext3 etc; Vista, W7) or maybe googling
for something similar will get you something more elaborate, if you need it.
Fergus
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