diff options
Diffstat (limited to 'Documentation/blockdev/ramdisk.txt')
-rw-r--r-- | Documentation/blockdev/ramdisk.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/blockdev/ramdisk.txt b/Documentation/blockdev/ramdisk.txt index 6c820baa19a6..fa72e97dd669 100644 --- a/Documentation/blockdev/ramdisk.txt +++ b/Documentation/blockdev/ramdisk.txt | |||
@@ -64,9 +64,9 @@ the RAM disk dynamically grows as data is being written into it, a size field | |||
64 | is not required. Bits 11 to 13 are not currently used and may as well be zero. | 64 | is not required. Bits 11 to 13 are not currently used and may as well be zero. |
65 | These numbers are no magical secrets, as seen below: | 65 | These numbers are no magical secrets, as seen below: |
66 | 66 | ||
67 | ./arch/i386/kernel/setup.c:#define RAMDISK_IMAGE_START_MASK 0x07FF | 67 | ./arch/x86/kernel/setup.c:#define RAMDISK_IMAGE_START_MASK 0x07FF |
68 | ./arch/i386/kernel/setup.c:#define RAMDISK_PROMPT_FLAG 0x8000 | 68 | ./arch/x86/kernel/setup.c:#define RAMDISK_PROMPT_FLAG 0x8000 |
69 | ./arch/i386/kernel/setup.c:#define RAMDISK_LOAD_FLAG 0x4000 | 69 | ./arch/x86/kernel/setup.c:#define RAMDISK_LOAD_FLAG 0x4000 |
70 | 70 | ||
71 | Consider a typical two floppy disk setup, where you will have the | 71 | Consider a typical two floppy disk setup, where you will have the |
72 | kernel on disk one, and have already put a RAM disk image onto disk #2. | 72 | kernel on disk one, and have already put a RAM disk image onto disk #2. |
@@ -85,7 +85,7 @@ The command line equivalent is: "prompt_ramdisk=1" | |||
85 | Putting that together gives 2^15 + 2^14 + 0 = 49152 for an rdev word. | 85 | Putting that together gives 2^15 + 2^14 + 0 = 49152 for an rdev word. |
86 | So to create disk one of the set, you would do: | 86 | So to create disk one of the set, you would do: |
87 | 87 | ||
88 | /usr/src/linux# cat arch/i386/boot/zImage > /dev/fd0 | 88 | /usr/src/linux# cat arch/x86/boot/zImage > /dev/fd0 |
89 | /usr/src/linux# rdev /dev/fd0 /dev/fd0 | 89 | /usr/src/linux# rdev /dev/fd0 /dev/fd0 |
90 | /usr/src/linux# rdev -r /dev/fd0 49152 | 90 | /usr/src/linux# rdev -r /dev/fd0 49152 |
91 | 91 | ||