I'm having trouble finding info on how to convert sector size (*if that's really what i want to do?) to something easier to understand.
I'm trying to copy the MBR from a bootable SD Card to another SD Card or image file, but I'm not sure what I should use in my dd command since I'm not positive about how much space is exactly before the 1st partition...
fdisk Output:
Code:
Disk /dev/sdc: 7969 MB, 7969177600 bytes
246 heads, 62 sectors/track, 1020 cylinders, total 15564800 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x5503c906
Device Boot Start End Blocks Id System
/dev/sdc1 * 2048 516099 257026 83 Linux
/dev/sdc2 518144 5918719 2700288 83 Linux
I read on a site that you can just divide the "Start" number in half to get Kilobytes (*which means there is 1MB before the 1st partition), but I'm not positive if that is accurate or not..?
What should I use as my dd command if I want everything BEFORE the first start'ing sector at 2048 (*i.e. before the 1st partition)?
Something like this?
Code:
# dd if=/dev/sdc of=MBR.img bs=512 count=???
If any has any thoughts or suggestions it would be much appreciated.
first of all, sorry about my english...I´m a spanish newbie to this marvelous OS and i have just a couple of doubts...u know? :-)
1) how big should my swap partition be if i installed debian 2.2r3 or FreeBSD 4.x on a AMD k7 1400Mhz with 512Mb of Random Access Memory?
i heard that those OS... (1 Reply)
Hello,
I am trying to monitor disk space for each node on the machine. I am able to get all individual nodes but for the '/' node. For example:
df -k:
bash-2.05b# df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/xxx 4127108 2415340 1502120 62% /
/dev/yyy ... (3 Replies)
Hi,
On one of our solaris servers, the root partition has filled up,(it was poorly sized in the first place), Does anyone have any advice about the best way to add space to a partition. I'm sure I've read how to do this somewhere before but just can't remember...:(
A colleague has suggested... (1 Reply)
Dear Friends ,
I am using Redhat Ent Linux 5.0 with a EMC storage which HDD space is 4 TB. After Installing RHEL 5 , I get 4 TB space available but when I am going to create a partition then the OS show 2TB available space . I cannot create a partition above 2TB space . Is there any limitation... (3 Replies)
hi
My System is Sun Microsystems Inc. SunOS 5.10 Solaris
Partition Info is
/dev/vx/dsk/bootdg/var
27G 25G 1.2G 96% /var
/dev/vx/dsk/bootdg/oravol
110G 54G 56G 49% /export/home
I want to shift space 20G from /export/home to /var
What should be the command ?? (2 Replies)
I am planning to install slack 13.37 on an old stand-alone PIII (512 mb ram) with 17 gb disk space. I need to keep lotsa pdf, chm type e-books for programming with few other misc. documents.
I'm going to use this system for my personal use.
It has no network but I browse internet with cable... (0 Replies)
Hi OS Experts
I would like to increase root partition from another partition so that I can save more documents in Home and Desktop. whether it is possible without formating root partition if so please explain
here is o/p of df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda9... (8 Replies)
Hi
I'm doing some resilience testing and need to write a script to consume all of the available disk space on a partition and then to free it up again.
This would need to be -
Safe
Dynamic, in that it calculates the free space prior to consuming it.
I might want to go on to consume a... (7 Replies)
I have a RHEL 5.3 machine with the following partitions and free space:
Free space on the partitions
/ : 74GB
/boot : 81MB
/var : 73GB
/home : 37GB
/icat : 758MB
/opt : 1.5GB
Now is it possible to allot a free space of some other partitions to /opt? I want around 100 GB more space... (4 Replies)
Discussion started by: omniok
4 Replies
LEARN ABOUT MINIX
fdisk
FDISK(8) System Manager's Manual FDISK(8)NAME
fdisk - partition a hard disk [IBM]
SYNOPSIS
fdisk [-hm] [-sn] [file]
OPTIONS -h Number of disk heads is m
-s Number of sectors per track is n
EXAMPLES
fdisk /dev/hd0 # Examine disk partitions
fdisk -h9 /dev/hd0 # Examine disk with 9 heads
DESCRIPTION
When fdisk starts up, it reads in the partition table and displays it. It then presents a menu to allow the user to modify partitions,
store the partition table on a file, or load it from a file. Partitions can be marked as MINIX, DOS or other, as well as active or not.
Using fdisk is self-explanatory. However, be aware that repartitioning a disk will cause information on it to be lost. Rebooting the sys-
tem immediately is mandatory after changing partition sizes and parameters. MINIX, XENIX, PC-IX, and MS-DOS all have different partition
numbering schemes. Thus when using multiple systems on the same disk, be careful.
Note that MINIX, unlike MS-DOS , cannot access the last sector in a partition with an odd number of sectors. The reason that odd partition
sizes do not cause a problem with MS-DOS is that MS-DOS allocates disk space in units of 512-byte sectors, whereas MINIX uses 1K blocks.
Fdisk has a variety of other features that can be seen by typing h.
Fdisk normally knows the geometry of the device by asking the driver. You can use the -h and -s options to override the numbers found.
SEE ALSO part(8).
FDISK(8)