Fdisk
From Openmoko
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m (→Create Partions) |
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# mkfs.vfat -v -n and-media -F 32 /dev/sde1 | # mkfs.vfat -v -n and-media -F 32 /dev/sde1 | ||
# mkfs.ext3 -v -L and-data /dev/sde2 | # mkfs.ext3 -v -L and-data /dev/sde2 | ||
− | If you are root you can remove <tt>sudo</tt> from the command. | + | If you are root you can remove <tt>sudo</tt> from the command. |
+ | * ''-n'' sets the name of the partition for FAT32 | ||
+ | * ''-L'' sets the Label of the partition for ext3 | ||
== Swap Partition == | == Swap Partition == |
Revision as of 12:07, 19 October 2010
On Linux Machine backup current data on Micro SD-Card before using fdisk. If SD-Card is located in /dev/sde use the following fdisk command:
fdisk /dev/sde
Contents |
Determine Device Name of SD Card
Replace /dev/sde by appropriate device name. df will help you to identify the device name and size of SD card. Use df to display all mounted storage devices:
sudo df
Depending on your demands or suggestions in manual, create the number of partitions you need
Partition Ratio SD Card
The following in the ratio 3 to 1 (e.g. 4000000 blocks):
- FAT32 (3/4 of total size of SD - e.g. blocks 1-3000000)
- EXT3 (1/4 of total size of SD - e.g. blocks 3000001-4000000)
- Calculate Blocks for Swap with 256MB for 2GB Mirco-SD Card with 12000 Blocks
256/2048 * 12000 = 1500 Blocks needed for Swap with size 256MB
400000
Create Partions
Use fdisk to create partitions:
sudo fdisk /dev/sde
- -> p Check partitions
- -> d -> 1 Delete Partition 1 (repeat for other existing partitions)
- -> n -> 1 -> New partition 1 (enter first and last sector)
- -> t -> 1 -> c Set c for FAT32 (LBA)
- -> a -> 1 Set boot flag for first partition
- -> n -> 2 -> New partition 2 (enter first and last sector)
- -> t -> 2 -> 83 Set type 83 for Linux partition
- -> w Write changes
- -> q quit fdisk
After fdisk operations, format both partitionss. If SD-Card is located in /dev/sde use the following commands (replace /dev/sde by appropriate device name:
# mkfs.vfat -v -n and-media -F 32 /dev/sde1 # mkfs.ext3 -v -L and-data /dev/sde2
If you are root you can remove sudo from the command.
- -n sets the name of the partition for FAT32
- -L sets the Label of the partition for ext3
Swap Partition
If you need a swap partition use partition type 82 for Linux Linux partition in fdisk.
-> t -> 2 -> 82 Set type 82 for Linux partition in fdisk
where 2 is the number of the swap partition (replace 2 with the appropriate partition number).