Talk:Forth Lesson 13
Perusing a file system
From the page.
ok more u:\boot\olpc.fth
Before seeing the contents of a file I want to see what is in the folder.
ok ls ext:\ Not at a device tree node. Use 'dev <device-pathname>'. ext:\ ? ok dev ext:\ ok ls ok
The operating system shows that \boot\q3c16.rom is on the external SD card ..., --Peasthope 14:57, 30 August 2013 (UTC)
... in a FAT32 file system. Will try ext2 next week, --Peasthope 04:06, 31 August 2013 (UTC)
- Thanks. None of the lessons gave any clear guidance on filesystem commands. Forth Lesson 13 has been edited to show some. Please review and try again.
- (although if you are upgrading firmware please use the instructions, which do not need these commands, and certainly won't work with a .rom file in the boot directory ... follow the instructions exactly, and ask any questions on the talk page ... if there's a problem with the instructions we really want to know).
- Forth Lesson 9. The consequences you observed after using and are correct. The filesystem used is immaterial, and I don't understand why you mentioned it; the commands will work on many different filesystems. --Quozl 09:07, 31 August 2013 (UTC). is a command for navigating the device tree structure, not a filesystem command, and you can find more about the device tree in
"ls is a command for navigating the device tree structure, not a filesystem command, ..."
- OK; just wasn't evident to me at the time.
"The filesystem used is immaterial, and I don't understand why you mentioned it;"
- Given the use of ls in Linux and the example where "more" was used to see the contents of a file, I naively tried ls to see file names. When it didn't work, I wondered whether it was filesystem specific. Not all knowledge is congenital. Now I know to distinguish between device nodes and filesystem entities. Thanks, ...Peasthope 14:07, 27 September 2013 (UTC)
- No problem with instructions for upgrading firmware. Had succeeded in wrecking my ~/.bashrc and anticipated fixing it by editing in OFW. More about that later. \boot\q3c16.rom was mentioned only because linux showed it existed but I failed to demonstrate existence in OFW. All is fine for now, thanks, ... Peasthope 18:53, 2 October 2013 (UTC)