Some clarifications in wiki/QemuXorriso

master
Thomas Schmitt 11 years ago
parent dc765c2eac
commit e26dcc7baf
  1. 19
      doc/qemu_xorriso.wiki

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

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