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2 # TACPI DControl ACPI module behaviour
6 The ACPI driver provides support for the Advanced Configuration and
7 Power Management standard.
9 If the acpi_load variable is set, the ACPI module will be loaded.
10 The ACPI driver can be disabled with:
13 set hint.acpi.0.disabled=1
15 Note that the ACPI autodetection sets a number of hints to
16 pass information to the ACPI module. These should not be
17 overridden, or system behaviour will be undefined.
19 See acpi.4 man page (on booted system) for full description.
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22 # Treboot DReboot the system
26 Causes the system to immediately reboot.
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29 # Tbcachestat DDisplay disk block cache stats
33 Display disk block cache stats. For debugging use only.
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36 # Theap DDisplay memory management statistics
40 Requests debugging output from the heap manager. For debugging use
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44 # Tset Snum_ide_disks DSet the number of IDE disks
46 NOTE: this variable is deprecated, use root_disk_unit instead.
48 set num_ide_disks=<value>
50 When booting from a SCSI disk on a system with one or more IDE disks,
51 and where the IDE disks are the default boot device, it is necessary
52 to tell the kernel how many IDE disks there are in order to have it
53 correctly locate the SCSI disk you are booting from.
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56 # Tset Sboot_userconfig DStart Userconfig
60 Requests that the kernel's interactive device configuration program
61 be run when the kernel is booted.
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64 # Tset Sroot_disk_unit DForce the root disk unit number.
66 set root_disk_unit=<value>
68 If the code which detects the disk unit number for the root disk is
69 confused, e.g. by a mix of SCSI and IDE disks, or IDE disks with
70 gaps in the sequence (i.e. no primary slave), the unit number can be
71 forced by setting this variable.
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