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Operating Systems Linux Ubuntu How do I re-install my bootloader? Post 302914358 by project722 on Monday 25th of August 2014 07:36:54 AM
Old 08-25-2014
How do I re-install my bootloader?

I accidently altered my partition table. Somehow I wiped it out completely and changed the disk label. Before I rebooted I managed to rebuild it the way it originally was using the original structure and label however I need to re-install a new bootloader for the new MBR. I have Ubuntu 14.04TLS running inside VirtualBox on a Windows 7 machine. Is there a way to do this without rebooting?
 

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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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