Editing Changing the eMMC filesystem
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*Reiser4 has some problems with both cluster=8K and cluster=16K on the N900 ("<code>Wrong level found in node</code>" warnings in dmesg). The parameters cluster=32K and cluster=64K (the default value) work without error. Use these values to prevent potential data loss. | *Reiser4 has some problems with both cluster=8K and cluster=16K on the N900 ("<code>Wrong level found in node</code>" warnings in dmesg). The parameters cluster=32K and cluster=64K (the default value) work without error. Use these values to prevent potential data loss. | ||
- | The following | + | The following seems to have removed the warnings in dmesg, test consisted of creating a tarball of /home/opt (~400MiB), extracting it once mounted, removal of the original tar and then repeating for a tarball of the SDK (~500MiB). |
'''Take note of the fsck.reiser4 stage which should be executed before the first mount.''' It creates lost+found directory and inserts an entry for ".", amongst other fixes. | '''Take note of the fsck.reiser4 stage which should be executed before the first mount.''' It creates lost+found directory and inserts an entry for ".", amongst other fixes. | ||
- | mkfs.reiser4 -y -o create=ccreg40,compress=lzo1,compressMode=ultim,cluster= | + | mkfs.reiser4 -y -o create=ccreg40,compress=lzo1,compressMode=ultim,cluster=8K,fibration=ext_3_fibre,formatting=smart /dev/mmcblkXpY |
fsck.reiser4 -y --build-fs /dev/mmcblkXpY | fsck.reiser4 -y --build-fs /dev/mmcblkXpY | ||
mount -t reiser4 -o rw,noatime,nodiratime /dev/mmcblkXpY /path/to/mount | mount -t reiser4 -o rw,noatime,nodiratime /dev/mmcblkXpY /path/to/mount |
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