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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-09-06 13:29:14 +0000 |
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| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-09-06 13:29:14 +0000 |
| commit | bf15faf28c3826541af41632784beaefdb9a2254 (patch) | |
| tree | 693df9115f41cfdf1df8985ab608e34db7c5dc44 /nuttx/examples/nsh/README.txt | |
| parent | 0d247e402ea9508b15e37fdd16d96e7d5ddd5498 (diff) | |
| download | px4-nuttx-bf15faf28c3826541af41632784beaefdb9a2254.tar.gz px4-nuttx-bf15faf28c3826541af41632784beaefdb9a2254.tar.bz2 px4-nuttx-bf15faf28c3826541af41632784beaefdb9a2254.zip | |
Add NSH command to create RAMDISK
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@884 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/examples/nsh/README.txt')
| -rw-r--r-- | nuttx/examples/nsh/README.txt | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/nuttx/examples/nsh/README.txt b/nuttx/examples/nsh/README.txt index 1972b2b13..0c0bc2eba 100644 --- a/nuttx/examples/nsh/README.txt +++ b/nuttx/examples/nsh/README.txt @@ -325,6 +325,45 @@ o mkfifo <path> brw-rw-rw- 0 ram0 nsh> +o mkrd [-m <minor>] [-s <sector-size>] <nsectors> + + Create a ramdisk consisting of <nsectors>, each of size + <sector-size> (or 512 bytes if <sector-size> is not specified. + The ramdisk will be registered as /dev/ram<n> (if <n> is not + specified, mkrd will attempt to register the ramdisk as + /dev/ram0. + + Example: + ^^^^^^^^ + + nsh> ls /dev + /dev: + console + null + ttyS0 + ttyS1 + nsh> mkrd 1024 + nsh> ls /dev + /dev: + console + null + ram0 + ttyS0 + ttyS1 + nsh> + + Once the ramdisk has been created, it may be formatted using + the mkfatfs command and mounted using the mount command. + + Example: + ^^^^^^^^ + nsh> mkrd 1024 + nsh> mkfatfs /dev/ram0 + nsh> mount -t vfat /dev/ram0 /tmp + nsh> ls /tmp + /tmp: + nsh> + o mount -t <fstype> <block-device> <dir-path> The 'mount' command mounts a file system in the NuttX psuedo @@ -543,7 +582,8 @@ Command Dependencies on Configuration Settings mem --- mkdir !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 mkfatfs !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_FAT - mkfifo !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 + mkfifo CONFIG_NFILE_DESCRIPTORS > 0 + mkrd !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_FAT mount !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_FAT ping CONFIG_NET && CONFIG_NET_ICMP && CONFIG_NET_ICMP_PING && !CONFIG_DISABLE_CLOCK && !CONFIG_DISABLE_SIGNALS ps -- |