Windows 10 | delete recovery partition
Call diskmgmt.msc and check it for disk/partition infos. Call diskpart. If disk id is 0 run and If your partition id is 3, run
Tag: disk
ZFS | replace failed disk in mirrored root zfs
# da0 has failed # da1 is running # zroot is the pool # da0p3 is the name of the mirror member you got via zfs status zroot # clear the errors zpool clear zroot # REPLACE THE DISK da0 with a new one # NOW: # da0 is the virgin # da1 is already […]
space saving hard disk dump using dd
Fill you enpty space witn zeros. dd if=/dev/zero of=/zero.txt rm -f /zero.txt Then dd your device: dd if=/dev/sdX of=mydisk.img conv=spars bs=512
kvm | qemu | qcow2 dynamic/sparse disk allocation problem | shrink sparse qcow2 disks howto
In some recent qemu versions there is a problem while creating sparse disks using the virt-manager. Normally the qcow2 format always allocates space dynamically (sparse), but some qemu versions fail at this, they create disks with full expected size. Solution: The easy way: Backup your old qcow2 image. Then do apt-get install libguestfs-tools virt-sparsify kvm_backup/debian_mssql.qcow2 […]
Label USB drive containing ext2 ext3 ext4
e2label /dev/xxx LABEL
OpenBSD 5.5 and later | cloning a disk the easy way
ATTENTION! Your default kernel always uses the root device per default from which he origins. This is hardcoded. You can change this at boot time using the boot -a (man boot) command at the boot prompt. It is NOT possible to script this (even using the /etc/boot.conf). This is not really a problem, if your […]
OpenBSD 5.1 and earlier | Cloning a disk the easy way
#!/bin/sh DISKLABEL=$(which disklabel) FDISK=$(which fdisk) DUMP=$(which dump) RESTORE=$(which restore) NEWFS=$(which newfs) MOUNT=$(which mount) UMOUNT=$(which umount) DUMP=$(which dump) RESTORE=$(which restore) MNT=”/mnt” LABEL=”/tmp/label” if [ $# -lt 2 ]; then echo “usage: do_clone.sh FROM TO” echo “example: do_clone.sh wd0 wd1” exit fi SRC=$1 $DISKLABEL $SRC > /dev/null || exit TAR=$2 $DISKLABEL $TAR > /dev/null || exit #echo […]
OpenBSD 5.2 and later | cloning a disk the easy way
ATTENTION! Your default kernel always uses the root device per default from which he origins. This is hardcoded. You can change this at boot time using the boot -a (man boot) command at the boot prompt. It is NOT possible to script this (even using the /etc/boot.conf). This is not really a problem, cs if […]
bytes and bones 