I tried to use ubifs. However, I just need of a space storage for three files with a total size of 500 bytes. From theses three files, the UBIFS generated a 1.8 MegaBytes file. The ubifs file system mounted took 7 Megabytes just for 500 bytes ! JFFS2 over ubi requires "only" 4 LEB minimum, so for my 500 bytes, jffs2 requires 4 * 128 kB == 512 kBytes for my nand.
----------------------------- Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:€ 16215441 ~ Numéro de TVA: FR47509653176 ----------------------------- -----Original Message----- From: Heiko Schocher [mailto:h...@denx.de] Sent: mardi 11 avril 2017 13:43 To: Curcio, Manuel Cc: u-boot@lists.denx.de Subject: Re: [U-Boot] MTD devices emulation driver (gluebi) support Hello Manuel, Am 11.04.2017 um 09:20 schrieb manuelcur...@eaton.com: > Hello > > Thanks for the answer. > Hi > > Thanks for the answer. > I would like ... but I think I'm going to a raw data storage in a ubi volume > instead of a little jffs2 file system :( (my need it is just to store some > bytes of data) ... Ok ... or you try to use UBIFS ? bye, Heiko > > Manuel > > > > > ----------------------------- > Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, > Immeuble Le Viséo - Bâtiment A Innovallée, 38330, > Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du > commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital > social souscrit et liberé:€ 16215441 ~ Numéro de TVA: FR47509653176 > ----------------------------- > > ________________________________________ > De : Heiko Schocher [h...@denx.de] > Envoyé : vendredi 7 avril 2017 13:02 > À : Curcio, Manuel > Cc : u-boot@lists.denx.de > Objet : Re: [U-Boot] MTD devices emulation driver (gluebi) support > > Hello Manuel, > > Am 06.04.2017 um 10:36 schrieb manuelcur...@eaton.com: >> Hi, >> >> I want to read a jffs2 file system over ubi from uboot. >> From ubi.h, I found the CONFIG_MTD_UBI_GLUEBI define to allow this >> functionality (I think) : >> >> /* gluebi.c */ >> #ifdef CONFIG_MTD_UBI_GLUEBI >> .... >> >> However, when I set this define, after compilation, I have errors links >> about gluebi functions : >> >> uboot/common/cmd_ubi.c:293: undefined reference to `ubi_gluebi_updated' >> >> And in fact, after search, I didn't find gluebi.c file in uboot. >> >> I use the U-Boot 2015.01 version. When I look the last release, I didn't >> find gluebi.c too. >> >> Some one can tell me more about that ? How is it possible to read jffs2 (or >> squashfs) from uboot ? > > We use the UBI/UBIFS sources from linux, so this part cames from > linux. And as fas as I know, nobody has tried to use > CONFIG_MTD_UBI_GLUEBI in u-boot yet, so if you want to do this, you > have to dig into this part deeper. Patches are welcome ;-) > > bye, > Heiko >> >> thanks ! >> >> Manuel >> >> >> >> ________________________________ >> Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, >> Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, >> France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro >> d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:EUR >> 16215441 ~ Numéro de TVA: FR47509653176? >> >> ________________________________ >> >> >> _______________________________________________ >> U-Boot mailing list >> U-Boot@lists.denx.de >> https://lists.denx.de/listinfo/u-boot >> > > -- > DENX Software Engineering GmbH, Managing Director: Wolfgang Denk > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
