topic Re: MFS shell commands and multiple MFS file systems in MQX Software Solutions

MFS shell commands and multiple MFS file systems

pbanta — Fri, 02 Nov 2012 16:03:45 GMT

With MQX 3.8.1 on a K70 I have two MFS filesystems created in this order:

1. a: is installed on a RAM disk

2. c: is installed on an SD card

Through a telnet shell I'm trying to use the MFS shell commands to test file creation/read/write/delete on the SD card. The only command that seems to recognize the c: filesystem is df. Other commands, like "create" and "dir" seem to only work with the first file system they find. See the shell output below.

shell> df a:

Free disk space on a:

2033 clusters, 512 bytes each

1016 KB

shell> df b

Error, file system not mounted

shell> df c:

Free disk space on c:

975594 clusters, 4096 bytes each

3902376 KB

shell> create a:test.txt

Error, unable to open file a:test.txt.

shell> create c:test.txt

Error, unable to open file c:test.txt.

shell> create test.txt

shell> dir

TEST.TXT 0 01-01-1980 00:03:16 A TEST.TXT

shell> dir a:

shell> dir c:

shell>

A little background:

I have partitioned and formatted the SD card with MQX/MFS. I know that in my SD card init function I can create a file successfully. I can then put the card in a PC and see the file I created. It's just that from the MQX shell that not all of the MFS shell commands seem to work. I must have something mis-configured.

Any ideas?

Paul

Re: MFS shell commands and multiple MFS file systems

BryGuyH — Fri, 02 Nov 2012 16:22:14 GMT

The shell functions don't accept absolute paths. Change directories first using cd to the root directory of the drive you're interested in.

Re: MFS shell commands and multiple MFS file systems

pbanta — Fri, 02 Nov 2012 16:36:24 GMT

Bingo. Thank you so much.

Maybe I spoke too soon...

I can change directory and see files on the SD card using "dir", but I still can't create files. The file system can't be read-only because I can create a file during the init, but not later.

Message was edited by: Paul Banta

Re: MFS shell commands and multiple MFS file systems

BryGuyH — Fri, 02 Nov 2012 16:51:37 GMT

Try to copy or compare two files on the drive to see if at least you can read from it.

Re: MFS shell commands and multiple MFS file systems

pbanta — Fri, 02 Nov 2012 20:39:40 GMT

I can't read from a file. I put an s-record file on the SD card using the card reader attached to my PC. I tried the "type" command to dump the file and my board crashed. I'll keep looking.