Analysis of the ARM9 boot process - Revision history

Kenatonline: /* The Update Process */

Kenatonline — Sat, 24 Sep 2011 05:53:56 GMT

The Update Process

← Older revision		Revision as of 05:53, 24 September 2011
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	[[Category:LS-VL]]		[[Category:LS-VL]]
	[[Category:LS-WVL]]		[[Category:LS-WVL]]
		+	[[Category:LS-XHL]]

Lsuser1985: added categories

Lsuser1985 — Fri, 23 Sep 2011 12:48:49 GMT

added categories

← Older revision		Revision as of 12:48, 23 September 2011
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	'''Conclusion''': If the original initrd is active, the system can be updated by copying the ''*.updated'' file to /boot and reboot.		'''Conclusion''': If the original initrd is active, the system can be updated by copying the ''*.updated'' file to /boot and reboot.
		+
		+	[[Category:LS-VL]]
		+	[[Category:LS-WVL]]

Clarkgwillison: /* The Update Process */ small typo: (maker -> marker)

Clarkgwillison — Mon, 11 Jul 2011 08:44:36 GMT

The Update Process: small typo: (maker -> marker)

← Older revision		Revision as of 08:44, 11 July 2011
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	*#: Updates the system (see below) and reboots.		*#: Updates the system (see below) and reboots.

-	NB: The ~~maker~~ ''/tmp/need_firmup'' never get deleted. It vanishes on reboot since /tmp/ is a ram disk.	+	NB: The marker ''/tmp/need_firmup'' never get deleted. It vanishes on reboot since /tmp/ is a ram disk.

	Update steps processed by ''/etc/init.d/fwupdate.sh'', triggered by the existence of the named file:		Update steps processed by ''/etc/init.d/fwupdate.sh'', triggered by the existence of the named file:

Lsuser1985: /* The Update Process */ typo

Lsuser1985 — Tue, 10 May 2011 18:54:21 GMT

The Update Process: typo

← Older revision		Revision as of 18:54, 10 May 2011
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	** update_feature() (not analyzed yet)		** update_feature() (not analyzed yet)

-	'''Conclusion''': If the original initrd is active, the system ca be updated by copying the ''*.updated'' file to /boot and reboot.	+	'''Conclusion''': If the original initrd is active, the system can be updated by copying the ''*.updated'' file to /boot and reboot.

Lsuser1985: Created page with "= The Update Process = This is based on FW 1.41. Basic steps are: * In Linuxrc: If the boot partition contains any any of ''uImage.buffalo.updated'', ''u-boot.buffalo.updated'…"

Lsuser1985 — Tue, 03 May 2011 09:34:30 GMT

Created page with "= The Update Process = This is based on FW 1.41. Basic steps are: * In Linuxrc: If the boot partition contains any any of ''uImage.buffalo.updated'', ''u-boot.buffalo.updated'…"

New page

= The Update Process =

This is based on FW 1.41.

Basic steps are:

* In Linuxrc: If the boot partition contains any any of ''uImage.buffalo.updated'', ''u-boot.buffalo.updated'', ''initrd.buffalo.updated'' or ''hddrootfs.buffalo.updated'', a marker ''/tmp/need_firmup'' is set and boot continues from ram-disk (this is initrd).
*: See functions ''HasUpdatedFile'' and ''HddRoot'' in /linuxrc
* ''init'' will now read ''/etc/inittab'' and run ''/etc/init.d/rcS'', which (after some basic setup) runs
*# ''/etc/init.d/startSysMd.sh''
*#: Since the marker ''/tmp/need_firmup'' is set, this will mount the raid (if any), even if faulty (function ''hotadd_faulty_SysMd'' in ''/usr//lib/libmd.sh'')
*# ''/etc/init.d/fwupdate.sh''
*#: Updates the system (see below) and reboots.

NB: The maker ''/tmp/need_firmup'' never get deleted. It vanishes on reboot since /tmp/ is a ram disk.

Update steps processed by ''/etc/init.d/fwupdate.sh'', triggered by the existence of the named file:

* NAND-update (not analyzed yet)
* ''uImage.buffalo.updated'' (kernel): will be moved to uImage.buffalo
* ''uImage.map'': find the name of the kernel file in uImage.map (based on product id) and rename this file to ''uImage.buffalo''. Other kernel images named in the map will be deleted, map will be deleted.
* ''initrd.buffalo.updated'': will be moved to ''initrd.buffalo''
* ''u-boot.buffalo.updated'' (bootloader): will be copied into /dev/mtdblock0
* ''u-boot.map'': find the name of the bootloader file in u-boot.map (based on product id) and copy it into /dev/mtdblock0. Other bootloader images named in the map will be deleted, map will be deleted.
* ''hddrootfs.buffalo.updated''
** update_hddrootfs()
*** save config (''/usr/local/lib/libbuffalo.sh'':''save_config'')
*** clear and format root filesystem (''/usr/local/lib/libbuffalo.sh'':''format_SystemArea'')
*** extract tar archive ''hddrootfs.buffalo.updated'' into root filesystem
***:N.B. This tries ''hddrootfs.buffalo.updated'' both as gzip-compresses file and as uncompressed file
** rename ''hddrootfs.buffalo.updated'' to ''hddrootfs.buffalo.updated.done''
** update_feature() (not analyzed yet)

'''Conclusion''': If the original initrd is active, the system ca be updated by copying the ''*.updated'' file to /boot and reboot.