Talk:PreDesktop Area - Revision history

Wyrfel at 11:32, 13 November 2005

2005-11-13T11:32:24Z

Show changes

Pebolle: reorg'ed

2005-11-05T22:01:33Z

reorg'ed

Pebolle: ENOPATCH

2005-11-05T21:56:21Z

ENOPATCH

Pebolle: whitespace

2005-11-04T19:44:16Z

whitespace

Pebolle: Removed another no longer relevant discussion (OK too?)

2005-11-04T19:42:53Z

Removed another no longer relevant discussion (OK too?)

Pebolle: Removed no longer relevant discussion (is that OK?)

2005-11-04T19:42:05Z

Removed no longer relevant discussion (is that OK?)

Korourke: Added more non-HPA details

2005-10-07T10:59:19Z

Added more non-HPA details

Korourke: Added info about T42P

2005-10-07T10:56:49Z

Added info about T42P

Wyrfel at 22:33, 30 September 2005

2005-09-30T22:33:00Z

Thinker: /* Rescue and Recovery via grub? */

2005-09-30T21:31:55Z

‎Rescue and Recovery via grub?

@@ Line 79: / Line 79: @@
 ----
 Did you update the two's complement checksum at the end of the BEER?
 [[user:Pebolle|Paul Bolle]]
 == Linux kernel support ==
@@ Line 118: / Line 121: @@
 [[User:Pebolle|Paul Bolle]] 22:01, 7 Sep 2005 (CEST)
 == Newer thinkpads don't use Phoenix Firstware? ==

← Older revision		Revision as of 21:56, 5 November 2005
Line 168:		Line 168:
	----		----
	Right, there has been a lot of confusion about this, we should have a separate page. Introduced an edit link (called Rescue and Recovery) on the [[ThinkPad Technologies]] page for that purpose.		Right, there has been a lot of confusion about this, we should have a separate page. Introduced an edit link (called Rescue and Recovery) on the [[ThinkPad Technologies]] page for that purpose.
		+
		+	== Suggestions for projects ==
		+
		+	I'd guess it would be rather nice to have GNU/Linux tools (like sfdisk and parted) HPA aware. The most urgent change would be to have those programs at least recognize and respect a HPA (e.g.: do not write in or otherwise use the HPA area; unless the user gives a --force option or something similar).
		+
		+	As for now, I realize I caused this error: ENOPATCH.
		+
		+	[[User:Pebolle\|Paul Bolle]] 22:56, 5 Nov 2005 (CET)

← Older revision		Revision as of 19:44, 4 November 2005
Line 122:		Line 122:

	Yep, I updated that. If I don't update that, it doesn't even say that failed message. I also made a seperate program to update the checksum so you can also modify the beer record by hand with a hex editor and have valid checksums.		Yep, I updated that. If I don't update that, it doesn't even say that failed message. I also made a seperate program to update the checksum so you can also modify the beer record by hand with a hex editor and have valid checksums.
−
−
−
−

	== Newer thinkpads don't use Phoenix Firstware? ==		== Newer thinkpads don't use Phoenix Firstware? ==

← Older revision		Revision as of 19:42, 4 November 2005
Line 125:		Line 125:


−	~~==What about that IBM link???==~~
−	Hei Paul, why did you remove that IBM link? I think it's nice to know what IBM has to say about this, even if it doesn't help much. At least i find it interesting that they have something to say about it.

−	~~Wyrfel.~~
−	~~----~~
−	~~Ok, I'm getting it, roughly. Now what's the "Recovering Partition" as opposed to the HPA??? Wyrfel.~~
−
−	~~----~~
−	~~Wyrfel,~~
−
−	~~Let met _try_ to explain. (Please google on "Andries Brouwer" and partitions for more correct info on partitions.)~~
−
−	Recovery partitions are ordinary partitions, accessible through the (let say) partition tree (the chain of the MBR [in /dev/hd''x''] and boot records [in /dev/hd''xn'', /dev/hd''xm'', etc]). As they are ordinary partitions they are (easily) accessible by ordinary (partitioning) tools (read: easily messed up). One of the things you can do with ordinary partitions is (sort of) "hide" some types of those. Anyway, this is what the IBM link was about.
−
−	Protected Service Areas on the other hand are (lets say) images of partitions written to the end of a harddisk. They are only accessible through their BEER. The general idea here is that with the correct settings in BIOS (and I guess some cooperation of the OS) the PSAs are totally hidden from all (ordinary) tools. Under certain conditions they still could be accessible through special PSA tools and under GNU/Linux they are only accessible with low level tools like dd (either always or if certain kernel parameters are set?) .
−
−	~~[[user:Pebolle\|Paul Bolle]] Fri Jul 15 12:09:34 CEST 2005~~

	== Newer thinkpads don't use Phoenix Firstware? ==		== Newer thinkpads don't use Phoenix Firstware? ==

← Older revision		Revision as of 19:42, 4 November 2005
Line 123:		Line 123:
	Yep, I updated that. If I don't update that, it doesn't even say that failed message. I also made a seperate program to update the checksum so you can also modify the beer record by hand with a hex editor and have valid checksums.		Yep, I updated that. If I don't update that, it doesn't even say that failed message. I also made a seperate program to update the checksum so you can also modify the beer record by hand with a hex editor and have valid checksums.

−	~~== RE: How to remove it / ATTENTION! ==~~

−	Please tell us how you are trying to access the BIOS. Via "Access IBM" or F12 (or something similar)? "Access IBM" at start up shouldn't work when you remove the HPA (that's my guess at least) but F12 at start up should work (I would be very surprised if it didn't ....).
−
−	~~[[user:Pebolle\|Paul Bolle]] Fri Jul 15 01:11:33 CEST 2005~~
−
−	~~No reaction for over two weeks. I'll remove the warning. Please answer above question first. If appropriate your free to reinsert you warning.~~
−
−	~~[[User:Pebolle\|Paul Bolle]] 15:48, 4 Aug 2005 (CEST)~~

	==What about that IBM link???==		==What about that IBM link???==

@@ Line 169: / Line 169: @@
 My T42P (model 2373HSG) is using a cut-down version of Windows XP as the pre-desktop area.  I'm not sure whether it's a special IBM thing or just a [http://www.microsoft.com/licensing/programs/sa/benefits/winpe.mspx Windows PE] (preinstallation environment) setup.  It includes Java and Python, which are used by some of the IBM tools, and the Opera web browser.
-It also looks like it's no longer an HPA but just an ordinary partition.
+It's no longer an HPA but a 487MB hidden FAT32 called IBM_SERVICE located at the end of the disk.
---[[User:Korourke|Korourke]] 12:56, 7 Oct 2005 (CEST)
+--[[User:Korourke|Korourke]]
 == Rescue and Recovery via grub? ==

← Older revision		Revision as of 10:56, 7 October 2005
Line 166:		Line 166:

	[[User:Pebolle\|Paul Bolle]] 15:43, 4 Aug 2005 (CEST)		[[User:Pebolle\|Paul Bolle]] 15:43, 4 Aug 2005 (CEST)
		+
		+	My T42P (model 2373HSG) is using a cut-down version of Windows XP as the pre-desktop area. I'm not sure whether it's a special IBM thing or just a [http://www.microsoft.com/licensing/programs/sa/benefits/winpe.mspx Windows PE] (preinstallation environment) setup. It includes Java and Python, which are used by some of the IBM tools, and the Opera web browser.
		+
		+	It also looks like it's no longer an HPA but just an ordinary partition.
		+
		+	--[[User:Korourke\|Korourke]] 12:56, 7 Oct 2005 (CEST)

	== Rescue and Recovery via grub? ==		== Rescue and Recovery via grub? ==

← Older revision		Revision as of 22:33, 30 September 2005
Line 188:		Line 188:
	It may very well not be an HPA , but the BIOS stil calls it a "Predesktop Area". Anyway, the partition is actually a VFAT partition (even though it has type 0x12, "Compaq Diagnostics"). It seems to boot into PC-DOS (using {{path\|NTDETECT.EXE}} so it looks like Windows startup) and then its {{path\|AUTOEXEC.BAT}} runs a fancy GUI.		It may very well not be an HPA , but the BIOS stil calls it a "Predesktop Area". Anyway, the partition is actually a VFAT partition (even though it has type 0x12, "Compaq Diagnostics"). It seems to boot into PC-DOS (using {{path\|NTDETECT.EXE}} so it looks like Windows startup) and then its {{path\|AUTOEXEC.BAT}} runs a fancy GUI.
	--[[User:Thinker\|Thinker]] 23:31, 30 Sep 2005 (CEST)		--[[User:Thinker\|Thinker]] 23:31, 30 Sep 2005 (CEST)
		+	----
		+	Right, there has been a lot of confusion about this, we should have a separate page. Introduced an edit link (called Rescue and Recovery) on the [[ThinkPad Technologies]] page for that purpose.

← Older revision		Revision as of 21:31, 30 September 2005
Line 184:		Line 184:
	Your "Rescue and Recovery partition" seems not to be a HPA (which isn't a partition). Maybe we should open a new page for that system.		Your "Rescue and Recovery partition" seems not to be a HPA (which isn't a partition). Maybe we should open a new page for that system.

		+	[[User:Pebolle\|Paul Bolle]] 21:54, 30 Sep 2005 (CEST)

−	[[User:~~Pebolle~~\|~~Paul Bolle~~]] 21:54, 30 Sep 2005 (CEST)	+	It may very well not be an HPA , but the BIOS stil calls it a "Predesktop Area". Anyway, the partition is actually a VFAT partition (even though it has type 0x12, "Compaq Diagnostics"). It seems to boot into PC-DOS (using {{path\|NTDETECT.EXE}} so it looks like Windows startup) and then its {{path\|AUTOEXEC.BAT}} runs a fancy GUI.
		+	--[[User:Thinker\|Thinker]] 23:31, 30 Sep 2005 (CEST)