Some clarifications in wiki/QemuXorriso
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@ -20,15 +20,13 @@ qemu start command :
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-net nic,model=ne2k_pci \
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-net user,hostfwd=tcp::5557-:22 \
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-hda /dvdbuffer/i386-install.qemu \
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-drive file=/dev/sr2,if=none,id=scsicd \
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-drive file=/dev/sr2,if=none,id=scsicd,format=raw \
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-device virtio-blk,drive=scsicd,logical_block_size=2048,physical_block_size=2048 \
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-cdrom .../some_image.iso
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}}}
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With this setup of -drive and -device it is necessary to have a readable
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medium in the drive, when qemu gets started. Else it will refuse to start
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with a message about missing medium or with an i/o error if the medium
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is blank.
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With this setup of -drive and -device it is necessary to have a
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medium in the drive, when qemu gets started. Else it will refuse.
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The guest system is accessible via ssh and scp at port 5557 of the
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host system.
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@ -417,17 +415,16 @@ sessions contain ISO 9660 filesystem images, which successively
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build on each other.
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So from the view of xorriso commands, the only task which makes
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them differ from sequential media. is to apply optional formatting
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to DVD-RW or BD-R.
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them differ from sequential media, is to apply optional formatting
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or re-formatting.
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A special case are BD-R, which xorriso may format but will not bring
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into (pseudo-) overwritable state. Formatted BD-R perform Defect
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Management by default, which checkreads during writing and replaces
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bad block. Nice idea in theory. My practical experience is not so good.
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Ill media stay ill media and should be replaced as soon as possible.
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bad block.
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Formatting of unused DVD+RW and BD-RE is done by xorriso automatically.
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Just start a normal write run. DVD-RAM are sold formatted.
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The mandatory formatting of unused DVD+RW and BD-RE is done by xorriso
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automatically. Just start a normal write run. DVD-RAM are sold formatted.
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xorriso treats overwritable media with a valid ISO 9660 filesystem as
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appendable media. To make then writable from scratch, apply
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