How to copy my system hdd usb stick from 4GB to 8GB ? Post: 302302591

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Top Forums UNIX for Dummies Questions & Answers How to copy my system hdd usb stick from 4GB to 8GB ? Post 302302591 by jack2 on Tuesday 31st of March 2009 11:19:04 AM

03-31-2009

Banned

Quote:

Originally Posted by pludi

Let me see if I understood this right, your layout is something like this (using /dev/sdg for the stick):

/dev/sdg1 swap swap
/dev/sdg2 ? /opt
/dev/sdg3 ? ?

Is the system, as you called it, on /dev/sdg3? Has the device to be bootable?

As a side node, using a flash-drive partition as swap is generally a bad idea, since they only survive about 10000 write cycles.

Exactly the case I need to have spare flash hdd system stick - scsi device.
How long does it for 100000 write cycles to complete ?

I suppose, the device has to be bootable.
Linux firmware is already installed in router's internal flash memory.
hdd flash usb stick as system with
part1 swap
part2 /opt
part3 /tmp data

I can use router if hdd usb flash stick is in and out.
In case it's out, I get standard router's functionality by Asus.
With usb stick in I get access to ipkg packages, installed applications,
root access and more.

As it took me months to install and configure some applications
and recently I native compiled Unix Linux dialog utility with examples running and being tested, I need to keep my Linux environment as safe as possible, keeping spare system usb flash for use in case it is necessary.

thanks

Jack

jack2

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LEARN ABOUT DEBIAN

hd

HD(4)							     Linux Programmer's Manual							     HD(4)

NAME

       hd - MFM/IDE hard disk devices

DESCRIPTION

       The  hd*  devices  are block devices to access MFM/IDE hard disk drives in raw mode.  The master drive on the primary IDE controller (major
       device number 3) is hda; the slave drive is hdb.  The master drive of the second controller (major device number 22) is hdc and	the  slave
       hdd.

       General	IDE block device names have the form hdX, or hdXP, where X is a letter denoting the physical drive, and P is a number denoting the
       partition on that physical drive.  The first form, hdX, is used to address the whole drive.  Partition numbers are assigned  in	the  order
       the  partitions	are  discovered,  and only nonempty, nonextended partitions get a number.  However, partition numbers 1-4 are given to the
       four partitions described in the MBR (the "primary" partitions), regardless of whether they are unused or extended.  Thus, the first  logi-
       cal  partition  will be hdX5.  Both DOS-type partitioning and BSD-disklabel partitioning are supported.	You can have at most 63 partitions
       on an IDE disk.

       For example, /dev/hda refers to all of the first IDE drive in the system; and /dev/hdb3 refers to the third DOS "primary" partition on  the
       second one.

       They are typically created by:

	      mknod -m 660 /dev/hda b 3 0
	      mknod -m 660 /dev/hda1 b 3 1
	      mknod -m 660 /dev/hda2 b 3 2
	      ...
	      mknod -m 660 /dev/hda8 b 3 8
	      mknod -m 660 /dev/hdb b 3 64
	      mknod -m 660 /dev/hdb1 b 3 65
	      mknod -m 660 /dev/hdb2 b 3 66
	      ...
	      mknod -m 660 /dev/hdb8 b 3 72
	      chown root:disk /dev/hd*

FILES

       /dev/hd*

SEE ALSO

       chown(1), mknod(1), sd(4), mount(8)

COLOPHON

       This  page is part of release 3.44 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    1992-12-17								     HD(4)

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