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> Zubuntu On A 4gb Transcend Sd Card, Issues with a new card
ofels
post Feb 2 2009, 05:04 AM
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Until today I used a Sandisk ExtremeIII SD card with 2.0 GB to run zubuntu via kexecboot kernel which worked like a chrm.

Today I formatted a 4GB Transcend card with ext3 and installed zubuntu on it. The result is somehow demotivating- themultiboot kernel starts, probes mmcblk0p1 and then returns with "no bootable device found". The boot flag is set on the partition.

I tried several things to solve the issue- shrink the partition to 1 GB, copied the root filesystem from the 2GB card- same result.

Interesting: Starting with the 2GB card until the multiboot display appears and then exchanging the SD cards works. So it is not the card itself, propably.

Any clues or similar experience?

Oliver
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danr
post Feb 2 2009, 07:12 AM
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Perhaps an obvious question, but does the SD card contain a partition? I think I might have accidentally used SD cards in the past without generating a partition.

If you fdisk /dev/mmcblk0 and select 'p', what does the partition table look like? For reference, my SD card contains three partitions and looks like this:

CODE
Device Boot Start End Blocks Id System
/dev/mmcblk0p1 1 353 2835441 6 FAT16
/dev/mmcblk0p2 354 484 1052257+ 83 Linux
/dev/mmcblk0p3 485 492 64260 82 Linux swap / Solaris


Kexec can pick up a kernel on the second partition; I just have to ensure the boot directory contains the files image.nfo, kernel-cmdline, zImage.
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ofels
post Feb 2 2009, 09:49 AM
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QUOTE(danr @ Feb 2 2009, 04:12 PM) *
Perhaps an obvious question, but does the SD card contain a partition?


Of course it does wink.gif
I once had two partitions on it but reduced to one to eliminate this as a potential source.

Oliver
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brontoZaurus
post Jul 23 2009, 01:52 AM
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try formatting it on ext2,
could it be kexec cant look at ext3??
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duo
post Jul 27 2009, 05:51 PM
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try reformatting it again. I had a similar problem, and it was cuz the partition type was still reading as fat32, even though I had formatted it as ext2. (the partition was still fat32, but the file system was ext2)
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zbeckerd
post Aug 20 2009, 09:38 PM
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I had the same experience with the same card. Although the first time I tried it I did get to the multiboot screen, but never again. I tried every combination of files systems and partitions and always get the same error you get.
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ppyo
post Sep 18 2009, 12:53 PM
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I had a similar problem with a 2GB sd card while installing Zubuntu 1. I created a 1GB partition formatted as ext3 and it would not be recognized at boot time.
I re formatted the partition to ext2, and voila, it was back in the boot menu.
Looks like we're stuck with ext2 here.
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duo
post Sep 19 2009, 05:40 PM
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QUOTE(ppyo @ Sep 18 2009, 03:53 PM) *
I had a similar problem with a 2GB sd card while installing Zubuntu 1. I created a 1GB partition formatted as ext3 and it would not be recognized at boot time.
I re formatted the partition to ext2, and voila, it was back in the boot menu.
Looks like we're stuck with ext2 here.



I have a 4GB Transcend Card that has 4 partitions. 1st is Fat32, 2 are ext3, and last is swap. Both the ext3 partitions are viewed and bootable using both the Angstrom multiboot kernel and the Omegamoon one. So I don't think that the filesystem is the problem.
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