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199875 |
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28-Nov-2009 |
trasz |
Provide a set of sysctls and tunables to disable device node creation for specific "kinds" of disk labels - for example, GPT UUIDs. Reason for this is that sometimes, other GEOM classes attach to these device nodes instead of the proper ones - e.g. they attach to /dev/gptid/XXX instead of /dev/ada0p2, which is annoying.
Reviewed by: pjd (earlier version) MFC after: 1 month
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131476 |
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02-Jul-2004 |
pjd |
Introduce GEOM_LABEL class. This class is used for detecting volume labels on file systems: UFS, MSDOSFS (FAT12, FAT16, FAT32) and ISO9660. It also provide native labelization (there is no need for file system).
g_label_ufs.c is based on geom_vol_ffs from Gordon Tetlow. g_label_msdos.c and g_label_iso9660.c are probably hacks, I just found where volume labels are stored and I use those offsets here, but with this class it should be easy to do it as it should be done by someone who know how. Implementing volume labels detection for other file systems also should be trivial.
New providers are created in those directories: /dev/ufs/ (UFS1, UFS2) /dev/msdosfs/ (FAT12, FAT16, FAT32) /dev/iso9660/ (ISO9660) /dev/label/ (native labels, configured with glabel(8))
Manual page cleanups and some comments inside were submitted by Simon L. Nielsen, who was, as always, very helpful. Thanks!
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