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Operating Systems Linux Ubuntu Copy existing Ubuntu to boot from USB Post 302890557 by Corona688 on Thursday 27th of February 2014 11:46:07 AM
Old 02-27-2014
A scratch installation sounds like a better idea, shrinking and moving all those partitions while technically possible sounds fraught with peril.

Correct, the drive's contents determine whether it's bootable, there's no hidden other things.

Be sure to copy the entire device, i.e. /dev/sdc, and not a partition, /dev/sdc1 etc. Not necessarily sdc of course.

You'll probably want to add 'bs=4M' to your dd command to speed it up. It just makes it copy in larger blocks. Should be easier on your flash drives too.
 

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REPARTITION(8)						      System Manager's Manual						    REPARTITION(8)

NAME
repartition - load a partition table SYNOPSIS
repartition device [partition-file] DESCRIPTION
Repartition uploads a new partition table for the partitions of device. The table is obtained from the first sector of partition-file if given, device otherwise. Device may refer to the whole drive or a primary partition, depending on whether you want to upload a partition or a subpartition table. The partitions will be truncated to fit within the enclosing device like the disk driver does, unless the numbers are coming from partition-file. EXAMPLES
repartition /dev/hd0 repartition /dev/hd4 /etc/hd4.table Reload the partition table of drive 0 setting /dev/hd[1-4], and the subpartition table of /dev/hd4 setting /dev/hd4[a-d] using a file. The latter may be useful if you need more than the 4 subpartitions a single Minix partition gives you. DIAGNOSTICS
The new table is printed on standard output. FILES
/dev/hd[0-9] SEE ALSO
hd(4), part(8). BUGS
The disk must be in use for the changes to stick. The partition table of an idle disk will be reloaded on the first open. AUTHOR
Kees J. Bot (kjb@cs.vu.nl) REPARTITION(8)
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