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Update readme

Joseph C. Lehner 7 年 前
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1 ファイル変更4 行追加1 行削除
  1. 4 1
      README.md

+ 4 - 1
README.md

@@ -108,7 +108,10 @@ network interface.
 This error message could also indicate a bug in the TFTP code; try using an external tftp
 client (busybox in this example), by specifying the `-c` flag instead of the `-f` flag:
 
-`# nmrpflash -i eth0 -c "busybox tftp -p -l EX2700-V1.0.1.8.img \$IP"`
+`# nmrpflash -i eth0 -c 'busybox tftp -p -l EX2700-V1.0.1.8.img $IP'`
+
+The environment variable `IP` is set by `nmrpflash` (other environment variables
+are: `MAC`, `PORT`, `NETMASK`).
 
 ###### "Timeout while waiting for CLOSE_REQ."