Cannot finish this project
Due to lack of support and overloaded information, this project is not going further to anywhere. I will have to launch a replacement project later in Oct, 2011 (hopefully).
useful information below
How to mount image file as disk
1. First you need to find out the partitions and the startsector of partitions:
[root@xen rruban]# file rheltest.img rheltest.img: x86 boot sector, GRand Unified Bootloader (0.94); partition 1: ID=0x83, active, starthead 1, startsector 63, 208782 sectors; partition 2: ID=0x8e, starthead 0, startsector 208845, 3871665 sectors, code offset 0x48
There are 3 partitions inside the image file. The startsector of each partition is also listed. Boot partition will have start sector 63. 2. Now you need to get the sector size:
[root@xen]fdisk -lu rheltest.img
Disk rheltest.img: 0 MB, 0 bytes 255 heads, 63 sectors/track, 0 cylinders, total 0 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System rheltest.img1 * 63 208844 104391 83 Linux rheltest.img2 208845 4080509 1935832+ 8e Linux LVM
The above shows the sector byte size is 512 byte. 3. To calculating the offset: offset = start_sector x sector_byte_size. The startsector is 63 for the first partition, therefore the first partition offset is: 63×512=32256 4. Finally, to mount the xen image, use:
mount -o loop,offset=32256 test.img /foldername
