On 30 September 2015 at 23:47, Ottavio Caruso <[email protected]> wrote: > Hello, > > I used to dual boot Windows 7 and NetBSD. > > This is my fdisk: > > > Disk: /dev/rwd0d > NetBSD disklabel disk geometry: > cylinders: 155061, heads: 16, sectors/track: 63 (1008 sectors/cylinder) > total sectors: 156301488, bytes/sector: 512 > > BIOS disk geometry: > cylinders: 1023, heads: 240, sectors/track: 63 (15120 sectors/cylinder) > total sectors: 156301488 > > Partitions aligned to 2048 sector boundaries, offset 2048 > > Partition table: > 0: NTFS, OS/2 HPFS, QNX2 or Advanced UNIX (sysid 7) > start 2048, size 204800 (100 MB, Cyls 0-13/163/19) > 1: NTFS, OS/2 HPFS, QNX2 or Advanced UNIX (sysid 7) > start 206848, size 63375360 (30945 MB, Cyls 13/163/20-4205/41/25) > 2: NetBSD (sysid 169) > start 63582208, size 46360576 (22637 MB, Cyls 4205/41/26-7271/83/35), > Active > 3: Primary DOS with 32 bit FAT (sysid 11) > start 109942784, size 46358528 (22636 MB, Cyls 7271/83/36-10337/93/13) > First active partition: 2 > Drive serial number: 4067601000 (0xf272aa68) > > > and this is my disklabel: > > -- bash-4.3$ sudo disklabel wd0 > # /dev/rwd0d: > type: unknown > disk: HITACHI HTS5425 > label: > flags: > bytes/sector: 512 > sectors/track: 63 > tracks/cylinder: 16 > sectors/cylinder: 1008 > cylinders: 155061 > total sectors: 156301488 > rpm: 3600 > interleave: 1 > trackskew: 0 > cylinderskew: 0 > headswitch: 0 # microseconds > track-to-track seek: 0 # microseconds > drivedata: 0 > > 16 partitions: > # size offset fstype [fsize bsize cpg/sgs] > a: 17687376 63582208 4.2BSD 2048 16384 0 # (Cyl. 63077*- > 80624*) > b: 204800 2048 NTFS # (Cyl. 2*- > 205*) > c: 46360576 63582208 unused 0 0 # (Cyl. 63077*- > 109070*) > d: 156301488 0 unused 0 0 # (Cyl. 0 - > 155060) > e: 28673200 81269584 4.2BSD 2048 16384 0 # (Cyl. 80624*- > 109070*) > f: 63375360 206848 NTFS # (Cyl. 205*- > 63077*) > g: 46358528 109942784 MSDOS # (Cyl. 109070*- > 155060*) > > > I marked my NetBSD partition active with SystemRescueCD, leaving me > the only option to boot Windows from a usb drive with syslinux. > > Now the usb drive is unbootable, therefore I can only access NetBSD. > > How can I boot from Windows without recurring to an external computer? >
At least can anybody advise if I can mark the partition active from within NetBSD? Would "fdisk -B wd0" give me the option to select a bootable partition? Is it safe to use fdisk on a Windows partition? -- Ottavio
