Preparing a USB key for installation

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Hi Chaps,

First post. Appologies in advance if this is the wrong list. This concerns installation of Fedora based distros from a USB key. I've read the guides that say one should run;
 dd if=diskboot.img of=/dev/sda

This works fine and I've been able to install OS using this method. However the partition table that this command creates is rather unusable for any thing other than installations. [output of fdisk -l listed below].

It seems as if the USB key is partitioned in such a way that all of the nth scsi device is used. It would be nice to be able mount the USB key in order to say, out an iso image on it. Bit of a waste of a 1GB USB key in that I do have the sapce for diskboot.img *and* an iso image.

# here comes output of fdisk -l

[root@acid ~]# fdisk -l

Disk /dev/hda: 40.0 GB, 40007761920 bytes
255 heads, 63 sectors/track, 4864 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1          12       96358+  83  Linux
/dev/hda2              13        2623    20972857+  83  Linux
/dev/hda3            2624        3276     5245222+  83  Linux
/dev/hda4            3277        4864    12755610    5  Extended
/dev/hda5            3277        4603    10659096   83  Linux
/dev/hda6            4604        4864     2096451   82  Linux swap / Solaris

Disk /dev/sda: 1054 MB, 1054736384 bytes
33 heads, 61 sectors/track, 1023 cylinders
Units = cylinders of 2013 * 512 = 1030656 bytes

This doesn't look like a partition table
Probably you selected the wrong device.

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   ?     1500507     1500758      253319   e4  SpeedStor
Partition 1 has different physical/logical beginnings (non-Linux?):
     phys=(190, 120, 0) logical=(1500506, 0, 15)
Partition 1 has different physical/logical endings:
     phys=(544, 125, 44) logical=(1500757, 22, 47)
Partition 1 does not end on cylinder boundary.
/dev/sda2   ?      500031     1487596   993984023   98  Unknown
Partition 2 has different physical/logical beginnings (non-Linux?):
     phys=(1010, 16, 43) logical=(500030, 27, 37)
Partition 2 has different physical/logical endings:
     phys=(205, 205, 22) logical=(1487595, 22, 42)
Partition 2 does not end on cylinder boundary.
/dev/sda3   ?      842835     1796589   959953209   7d  Unknown
Partition 3 has different physical/logical beginnings (non-Linux?):
     phys=(252, 139, 46) logical=(842834, 15, 19)
Partition 3 has different physical/logical endings:
     phys=(367, 195, 2) logical=(1796588, 8, 61)
Partition 3 does not end on cylinder boundary.
/dev/sda4   ?        2768        6902     4161536    0  Empty
Partition 4 has different physical/logical beginnings (non-Linux?):
     phys=(0, 10, 0) logical=(2767, 9, 41)
Partition 4 has different physical/logical endings:
     phys=(0, 0, 0) logical=(6901, 31, 28)
Partition 4 does not end on cylinder boundary.

Partition table entries are not in disk order


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