Boot-args (iBoot variable) - Revision history

Vanished user 20210509: rd/rootdev confusion; I don't backlight-level is a boot-arg, only an env variable

2020-06-09T21:15:34Z

rd/rootdev confusion; I don't backlight-level is a boot-arg, only an env variable

Vanished user 20210509: Reformatted into a table

2020-06-09T20:19:29Z

Reformatted into a table

Bastian Schwickert: "rd=md0 nand-enable-reformat=1 -progress" is also used by update ramdisks

2020-04-14T23:34:59Z

"rd=md0 nand-enable-reformat=1 -progress" is also used by update ramdisks

Ilikeiphone123: one line (serial)

2019-11-21T11:14:51Z

one line (serial)

IAdam1n: Typo fix.

2013-06-12T10:15:52Z

Typo fix.

Haifisch at 04:33, 12 June 2013

2013-06-12T04:33:04Z

Iemit737 at 01:55, 13 October 2010

2010-10-13T01:55:13Z

Ryccardo: Merged with "Boot arguments"

2010-10-12T19:38:29Z

Merged with "Boot arguments"

M2m: /* Known Settings */

2010-06-20T12:40:21Z

‎Known Settings

M2m at 12:25, 20 June 2010

2010-06-20T12:25:31Z

@@ Line 8: / Line 8: @@
 ! Description
 ! Notes
 |-
 | debug=#
@@ Line 36: / Line 31: @@
 | rd=?
 | <code>'md#'</code>
-| Specify a [[Ramdisk|ramdisk]] to boot from
+| Specify the root device to boot from
-| Used when [[Restore Process|restoring]]
+| Used when [[Restore Process|restoring]]; same as <code>rootdev</code>
 |-
 | serial=#

← Older revision		Revision as of 20:19, 9 June 2020
Line 1:		Line 1:
−	~~This~~ ~~variable~~ is ~~ignored~~ in ~~firmware~~ ~~>=2.0 when booting to NAND. See also~~ [[~~Talk:Restore Mode~~]] These can be booted with a patched iBoot, redsn0w ~~does~~ this when you set custom ~~bootargs~~.	+	These are boot arguments that the iOS [[kernel]] accepts. These can be booted with a patched [[iBoot]]; untethered [[BootROM]] jailbreaks such as [[redsn0w]] and [[checkra1n]] do this when you set custom boot-args.

−	=Known ~~Settings~~=	+	= Known Boot Arguments =
		+	{\| class="wikitable"
−	* "rd=md0 nand-enable-reformat=1 -progress" (Used in restore and update ramdisks)
		+	\|-
−	* pmd= (used in the [[Ramdisk Hack]])
		+	! boot-arg
−	* 1 (?)
		+	! Values
−	* "-v" ([[Verbose boot]])
		+	! Description
−	* auto-boot (true/false. False does not try to boot the kernelcache)
		+	! Notes
−	* backlight-level (value from 1 to 128 for backlight level)
		+	\|-
−	* debug=# (# can be replaced with 0x09 for kernel debugging)
		+	\| backlight-level=#
−	* serial=3 (same as [[Debug-uarts (iBoot variable)]])
		+	\| <code>1</code>-<code>128</code>
		+	\| Set LCD backlight level
		+	\|
		+	\|-
		+	\| debug=#
		+	\| <code>0x09</code>: Kernel debugging
		+	\| Set kernel debug options
		+	\|
		+	\|-
		+	\| nand-enable-reformat=#
		+	\| <code>0</code>, <code>1</code>
		+	\| Set whether or not to reformat [[NAND]] when restoring
		+	\| Used when [[Restore Process\|restoring]]
		+	\|-
		+	\| pmd=#.#
		+	\| Start/end address of ramdisk
		+	\| Specify a [[Ramdisk\|ramdisk]] in memory to boot from
		+	\| Used in the [[Ramdisk Hack]]
		+	\|-
		+	\| -progress
		+	\| {{n/a}}
		+	\| Enable progress bar when restoring
		+	\| Used when [[Restore Process\|restoring]]
		+	\|-
		+	\| rd=?
		+	\| <code>'md#'</code>
		+	\| Specify a [[Ramdisk\|ramdisk]] to boot from
		+	\| Used when [[Restore Process\|restoring]]
		+	\|-
		+	\| serial=#
		+	\| <code>3</code>: Debug output over serial
		+	\| Set serial debug options
		+	\| Same as <code>[[Debug-uarts (iBoot variable)\|debug-uarts]]</code>
		+	\|-
		+	\| -v
		+	\| {{n/a}}
		+	\| Enable verbose booting
		+	\|
		+	\|-
		+	\|}
		+
		+	= See Also =
		+	* [[Talk:Restore Mode]]

@@ Line 2: / Line 2: @@
 =Known Settings=
-* "rd=md0 nand-enable-reformat=1 -progress" (Used in restore (and update?) ramdisks)
+* "rd=md0 nand-enable-reformat=1 -progress" (Used in restore and update ramdisks)
 * pmd= (used in the [[Ramdisk Hack]])
 * 1 (?)

← Older revision		Revision as of 11:14, 21 November 2019
Line 9:		Line 9:
	* backlight-level (value from 1 to 128 for backlight level)		* backlight-level (value from 1 to 128 for backlight level)
	* debug=# (# can be replaced with 0x09 for kernel debugging)		* debug=# (# can be replaced with 0x09 for kernel debugging)
		+	* serial=3 (same as [[Debug-uarts (iBoot variable)]])

← Older revision		Revision as of 10:15, 12 June 2013
Line 1:		Line 1:
−	This variable is ignored in firmware >=2.0 when booting to NAND. See also [[Talk:Restore Mode]] These can ~~bee~~ booted with a patched iBoot, redsn0w does this when you set custom bootargs.	+	This variable is ignored in firmware >=2.0 when booting to NAND. See also [[Talk:Restore Mode]] These can be booted with a patched iBoot, redsn0w does this when you set custom bootargs.

	=Known Settings=		=Known Settings=

@@ Line 1: / Line 1: @@
-This variable is ignored in firmware >=2.0 when booting to NAND. See also [[Talk:Restore Mode]]
+This variable is ignored in firmware >=2.0 when booting to NAND. See also [[Talk:Restore Mode]] These can bee booted with a patched iBoot, redsn0w does this when you set custom bootargs.
 =Known Settings=
@@ Line 8: / Line 8: @@
 * auto-boot (true/false. False does not try to boot the kernelcache)
 * backlight-level (value from 1 to 128 for backlight level)

← Older revision		Revision as of 01:55, 13 October 2010
Line 6:		Line 6:
	* 1 (?)		* 1 (?)
	* "-v" ([[Verbose boot]])		* "-v" ([[Verbose boot]])
		+	* auto-boot (true/false. False does not try to boot the kernelcache)
		+	* backlight-level (value from 1 to 128 for backlight level)

← Older revision		Revision as of 19:38, 12 October 2010
Line 1:		Line 1:
		+	This variable is ignored in firmware >=2.0 when booting to NAND. See also [[Talk:Restore Mode]]
		+
	=Known Settings=		=Known Settings=
−	* ~~setenv boot-args~~ "rd=md0 nand-enable-reformat=1 -progress"	+	* "rd=md0 nand-enable-reformat=1 -progress" (Used in restore (and update?) ramdisks)
		+	* pmd= (used in the [[Ramdisk Hack]])
−	* setenv boot-args 1
		+	* 1 (?)
−	* setenv boot-args "-v"
		+	* "-v" ([[Verbose boot]])

← Older revision		Revision as of 12:40, 20 June 2010
Line 2:		Line 2:
	* setenv boot-args "rd=md0 nand-enable-reformat=1 -progress"		* setenv boot-args "rd=md0 nand-enable-reformat=1 -progress"
	* setenv boot-args 1		* setenv boot-args 1
		+	* setenv boot-args "-v"

← Older revision		Revision as of 12:25, 20 June 2010
Line 1:		Line 1:
		+	=Known Settings=
	* setenv boot-args "rd=md0 nand-enable-reformat=1 -progress"		* setenv boot-args "rd=md0 nand-enable-reformat=1 -progress"
	* setenv boot-args 1		* setenv boot-args 1