From: Marc B. <ma...@ge...> - 2006-05-04 17:51:55
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Would anyone have an Idea why buildroot does not generate the so called ext2 image file when I select the option in the menuconfig!? |
From: Dave H. <dhy...@gm...> - 2006-05-04 18:02:22
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Hi Marc, On 5/4/06, Marc Bernard <ma...@ge...> wrote: > Would anyone have an Idea why buildroot does not generate the so called e= xt2 > image file when I select the option in the menuconfig!? I started to look at this last night. It seems that the ext2root support is incomplete. The jssf2 makefile has a line which does TARGETS +=3D jffs2root where the ext2 makefile has no corresponding line. That's where I got to when I called it quits last night. I'll continue to look into it tonight. I've been recording what I did, so I can write up a Wiki page. I think having a bootable ext2 MMC card would be cool, and would allow for some intersting developments like being able to boot from a menu of kernels which is great for testing stuff. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Marc B. <ma...@ge...> - 2006-05-05 07:26:37
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Dave said: I think having a bootable ext2 MMC card would be cool, and would allow for some intersting developments like being able to boot from a menu of kernels which is great for testing stuff. -- THANK GOD !!! I`ve been really looking forward to something like this, it REALLY would make it easier. Once compile and updates are done on MMC, one could easily remove stuff like bison, gcc or whathever stuff is not needed anymore to free up space on the MMC to make the image fit back on the flash if needed. How long do you think it would take to have those changes made to u-boot and the buildroot ? And ... Just for the record, I still haven't been able to boot from the MMC yet. I am very disapointed. |
From: Dave H. <dhy...@gm...> - 2006-05-05 07:41:59
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Hi Marc, > I`ve been really looking forward to something like this, it REALLY would > make it easier. Once compile and updates are done on MMC, one could easil= y > remove stuff like bison, gcc or whathever stuff is not needed anymore to > free up space on the MMC to make the image fit back on the flash if neede= d. > > How long do you think it would take to have those changes made to u-boot = and > the buildroot ? When it works :) I honestly have no idea. I just do this in my spare time. So it depends on what kind of roadblocks I run into, etc. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Marc B. <ma...@ge...> - 2006-05-05 15:57:12
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Dave said: > How long do you think it would take to have those changes made to > u-boot and the buildroot ? When it works :) I honestly have no idea. I just do this in my spare time. So it depends on what kind of roadblocks I run into, etc. -- Allright .. well that's not too bad, as long as we can at least make it manually .. for now, the ext2 output is fucked so I gotta wait for that ! |
From: ken s. <ken...@gm...> - 2006-05-09 01:04:03
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Dave, On 5/4/06, Dave Hylands <dhy...@gm...> wrote: > Hi Marc, > > On 5/4/06, Marc Bernard <ma...@ge...> wrote: > > Would anyone have an Idea why buildroot does not generate the so called= ext2 > > image file when I select the option in the menuconfig!? > > I think having a bootable ext2 MMC card would be cool, and would allow > for some intersting developments like being able to boot from a menu > of kernels which is great for testing stuff. Don't forget that ext2 doesn't do wear levelling. Some ideas are discussed in the U-Boot docs: http://www.denx.de/wiki/view/DULG/RootFileSystemDesignAndBuilding especially 9.6.4 - 9.6.6 Using a nfs root for development is a good alternative. --- Ken |
From: Dave H. <dhy...@gm...> - 2006-05-09 01:14:04
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Hi Ken, > Don't forget that ext2 doesn't do wear levelling. > Some ideas are discussed in the U-Boot docs: > http://www.denx.de/wiki/view/DULG/RootFileSystemDesignAndBuilding > especially 9.6.4 - 9.6.6 I'll take a look. My understanding is that MMC card takes care of wear leveling. The most common file system is VFAT, which also doesn't do wear leveling. > Using a nfs root for development is a good alternative. If you have the ethernet access, and a server... -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |