1################################################################################ 2# Treboot DReboot the system 3 4 reboot 5 6 Causes the system to immediately reboot. 7 8################################################################################ 9# Theap DDisplay memory management statistics 10 11 heap 12 13 Requests debugging output from the heap manager. For debugging use 14 only. 15 16################################################################################ 17# Tset Snum_ide_disks DSet the number of IDE disks 18 19 NOTE: this variable is deprecated, use root_disk_unit instead. 20 21 set num_ide_disks=<value> 22 23 When booting from a SCSI disk on a system with one or more IDE disks, 24 and where the IDE disks are the default boot device, it is necessary 25 to tell the kernel how many IDE disks there are in order to have it 26 correctly locate the SCSI disk you are booting from. 27 28################################################################################ 29# Tset Sroot_disk_unit DForce the root disk unit number. 30 31 set root_disk_unit=<value> 32 33 If the code which detects the disk unit number for the root disk is 34 confused, eg. by a mix of SCSI and IDE disks, or IDE disks with 35 gaps in the sequence (eg. no primary slave), the unit number can be 36 forced by setting this variable. 37 38################################################################################ 39# Tsmap DDisplay BIOS SMAP table 40 41 smap 42 43 Displays the BIOS SMAP (system memory map) table. 44 45################################################################################ 46# Tchain DChain load disk block 47 48 chain disk: 49 50 chain will read stage1 (MBR or VBR) boot block from specified device 51 to address 0000:7C00 and attempts to run it. Use lsdev to get available 52 device names. Disk name must end with colon. 53 54################################################################################ 55