Hello people! Last time I wrote that we had some problems in generating jffs2 file system image. So I read on the internet about a bug when using -v option in mkfs.jffs2. I tried to generate the jffs2 image by taping the command and I think that I got it.
So, you’ll need:
– mkfs.jffs2 (from mtd-tools)
– file system (it’s generated when compiling uClinux in the uClinux-dist directory named as romfs)
– dev_table.txt (located at uClinux/vendors/EmbeddedArtists/LPC2468OEM_Board/dev_table.txt)
To better comprehension let’s copy dev_table.txt to uClinux-dist directory:
cd uClinux-dist cp ./vendors/EmbeddedArtists/LPC2468OEM_Board/dev_table.txt ./
Now let’s generate the jffs2 image by taping:
mkfs.jffs2 -d ./romfs -D ./dev_table.txt -l -o ./images/jffs2.img -e 128 -n -m none -p
If you want to understand what we are doing, take a look on mkfs.jffs2 man page, it’s not that complicated!
That’s it!
Marcelo Jo
Marcelo Jo is an electronics engineer with 10+ years of experience in embedded system, postgraduate in computer networks and masters student in computer vision at Université Laval in Canada. He shares his knowledge in this blog when he is not enjoying his wonderful family – wife and 3 kids. Live couldn’t be better.
I'm an electronics engineer with 10+ years of experience in embedded system, hardware and firmware development for several 8/16/32 bits microcontrollers like 8051, Microchip, MSP430, Freescale, ARM, etc. I'm a passionate in electronics and embedded systems, but not a nerds! =P
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