if you want to delete the recovery partition, for example due to expand the C: drive you have to disable the recovery environment first. Disable means the Menu entry from the Bootmenu is removed.
Continue reading Windows: Disable Windows recovery environment to delete recovery partition
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with virtualization it simply possible to change systems within a few mouse clicks. For example adding new disks or increasing the disk size of a hard disk without a reboot.
Continue reading Linux: Rescan for new and changes of devices
there are several ways to mount a partition which is within a diskimage file created for example with dd.
The first and hard way is to determine the offset of the partition start sector and mounting the disk by specifing the offset as parameter for the loop device.
You can use the
fdisk command to examine the file.
root@ubdev:/mnt/RaspberryPI # file 2012-07-15-wheezy-raspbian.img
2012-07-15-wheezy-raspbian.img: x86 boot sector; partition 1: ID=0xc, starthead 130, startsector 8192, 114688 sectors; partition 2: ID=0x83, starthead 165, startsector 122880, 3665920 sectors, code offset 0xb8
root@ubdev:/mnt/RaspberryPI # fdisk 2012-07-15-wheezy-raspbian.img
Command (m for help): p
Disk 2012-07-15-wheezy-raspbian.img: 1939 MB, 1939865600 bytes
255 heads, 63 sectors/track, 235 cylinders, total 3788800 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
Disk identifier: 0x000714e9
Device Boot Start End Blocks Id System
2012-07-15-wheezy-raspbian.img1 8192 122879 57344 c W95 FAT32 (LBA)
2012-07-15-wheezy-raspbian.img2 122880 3788799 1832960 83 Linux
For example the startsector of partition 2 is
122880, this multiplied with the 512 bytes per sector is the byte offset of the partition. 122880*512=62914560.
Continue reading Linux: Multiple ways to mount a partition in a disk image file
a good friend of mine came to me last week because some services of Windows Vista on his notebook did not run as expect. In detail:
- Windows Search service starts but terminates
- Windows Update service starts, but do not work, some errors are logged in C:\Windows\WindowsUpdate.log
- 45c DtaStor FATAL: Failed to initialize datastore, error = 0xC8000247
- 45c AU FATAL: Failed to get session from datastore, error = 0xC8000247
- 45c AU FATAL: Failed to Unserialize from data store, error = 0xC8000247
- No Windows Update File could installed by double clicking a msu File.
- Cryptocraphic service do not run as expected:
It seems that all services which uses the Window Jet Database engine are affected.
Continue reading Windows Update and Windows Search do not work