Mentioned success and failure reports of partition offset
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@ -22,6 +22,8 @@ Imaging:
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[#partition_offset What is partition offset feature all about?]
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[#partition_offset_apple Partition offset bad on Apple ?]
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Development:
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[#api_specs Where are the APIs of libburnia libraries described ?]
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@ -130,6 +132,18 @@ where it eventually can manipulate and augment the MBR.
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(See [http://libburnia-project.org/wiki/PartitionOffset Partition Offset Wiki]
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for examples.)
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There are reports of machines which will not boot from USB stick if
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partition offset is 0.
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===== Partition offset bad on Apple ? ===== #partition_offset_apple
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Apple's "Snow Leopard" operating system refuses to mount Debian CD images
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with non-zero partition offset.
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The issue is still under investigation. But for now one has to choose
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between mountability on Apple "Snow Leopard" or bootability from USB stick
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on Kontron CG2100 "carrier grade server".
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----------------------------------------------------------------------------
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'''Developing'''
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----------------------------------------------------------------------------
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@ -25,6 +25,16 @@ and [http://cdimage.debian.org/cdimage/weekly-builds/ weekly] builds make
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use of this feature with their bootable ISO images for i386 and amd64. E.g.
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[http://cdimage.debian.org/cdimage/daily-builds/daily/current/i386/iso-cd/debian-testing-i386-businesscard.iso debian-testing-i386-businesscard.iso].
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According to a
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[http://syslinux.zytor.com/archives/2011-March/016201.html thread of march 2011]
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on Syslinux mailing list this enabled booting of a Kontron CG2100 server
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from USB stick, which otherwise failed.
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Regrettably the feature seems to prevent mounting of ISO 9660 images on
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Apple "Snow Leopard" systems.
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At least this is the outcome of a
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[http://lists.debian.org/debian-cd/2011/04/msg00029.html debian-cd thread of april 2011].
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--------------------------------------------------------------------------
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Example:
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@ -149,7 +159,7 @@ about 50 kB.
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Unpadded ISO images are safe except for burning on CD in TAO mode.
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In this case problems may occur with reading the last few data blocks.
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So when burning onto CD make sure to require SAO mode and/or to
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require padding by 300 KiB.
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require padding by 300 kB.
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Burning on DVD or BD needs no such caution. Neither does copying
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on USB stick or hard disk.
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@ -158,8 +168,8 @@ This can be silenced by adding option
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{{{
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-partition_cyl_align on
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}}}
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at the cost of image padding up to the next full MiB.
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E.g. by 402 KiB to 2 MiB.
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at the cost of image padding up to the next full MB.
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E.g. by 402 kB to 2 MB.
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--------------------------------------------------------------------------
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