struct bsd_disklabel
No. | 名称 | 属性 | 説明 |
---|---|---|---|
1 |
bsd_disklabel | ||
d_magic | unsigned int | the magic number | |
d_type | short int | drive type | |
d_subtype | short int | controller/d_type specific | |
d_typename[16] | char | type name, e.g. "eagle" | |
d_packname[16] | char | pack identifier | |
d_secsize | unsigned int | # of bytes per sector | |
d_nsectors | unsigned int | # of data sectors per track | |
d_ntracks | unsigned int | # of tracks per cylinder | |
d_ncylinders | unsigned int | # of data cylinders per unit | |
d_secpercyl | unsigned int | # of data sectors per cylinder | |
d_secperunit | unsigned int | # of data sectors per unit | |
d_sparespertrack | unsigned short | # of spare sectors per track | |
d_sparespercyl | unsigned short | # of spare sectors per cylinder | |
d_acylinders | unsigned int | # of alt. cylinders per unit | |
d_rpm | unsigned short | rotational speed | |
d_interleave | unsigned short | hardware sector interleave | |
d_trackskew | unsigned short | sector 0 skew, per track | |
d_cylskew | unsigned short | sector 0 skew, per cylinder | |
d_headswitch | unsigned int | head switch time, usec | |
d_trkseek | unsigned int | track-to-track seek, usec | |
d_flags | unsigned int | generic flags | |
d_drivedata[5] | unsigned int | drive-type specific information | |
d_spare[5] | unsigned int | reserved for future use | |
d_magic2 | unsigned int | the magic number (again) | |
d_checksum | unsigned short | xor of data incl. partitions | |
d_npartitions | unsigned short | number of partitions in following | |
d_bbsize | unsigned int | size of boot area at sn0, bytes | |
d_sbsize | unsigned int | max size of fs superblock, bytes | |
p_size | bsd_partition unsigned int | number of sectors in partition | |
p_offset | unsigned int | starting sector | |
p_fsize | unsigned int | filesystem basic fragment size | |
p_fstype | unsigned char | filesystem type, see below | |
p_frag | unsigned char | filesystem fragments per block | |
p_cpg | unsigned short | filesystem cylinders per group | |
d_partitions[XBSD_MAXPARTITIONS] | actually may be more |
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