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Diffstat (limited to 'contrib/syslinux-4.02/memdump/README')
| -rw-r--r-- | contrib/syslinux-4.02/memdump/README | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/memdump/README b/contrib/syslinux-4.02/memdump/README new file mode 100644 index 0000000..2b82577 --- /dev/null +++ b/contrib/syslinux-4.02/memdump/README @@ -0,0 +1,19 @@ +This is a very simple COMBOOT program which can be used to dump memory +regions over a serial port. To use it, type on the SYSLINUX command +line: + +memdump <port> <prefix> <start>,<len> <start>,<len>... + +For example: + +memdump 0 funnysystem- 0,0x600 0x9fc00,0x400 0xf0000,0x10000 + +... dumps three memory ranges (the standard BIOS memory ranges, often +useful) onto serial port 0. The <port> can either be in the range 0-3 +for the standard BIOS serial port, or the I/O address of the UART. + +The data is transferred using the YMODEM protocol; the Unix +implementation of this protocol is called "rb" and is part of the +"lrzsz" (or "rzsz") package. If one uses a terminal program like +Minicom, there is often a way to invoke it from inside the terminal +program; in Minicom, this is done with the Ctrl-A R control sequence. |