Data Recovery - Revision history

Jeremy: /* MacOS */

2018-07-20T14:58:09Z

MacOS

← Older revision		Revision as of 14:58, 20 July 2018
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	If a Macbook won't boot MacOS but instead shows a flashing folder graphic with a question mark:		If a Macbook won't boot MacOS but instead shows a flashing folder graphic with a question mark:
	* Try checking the disk with disk utility (boot with Command-R held down). Try to reboot.		* Try checking the disk with disk utility (boot with Command-R held down). Try to reboot.
	* Select the disk as the startup disk (boot with option key held down [or from the system menu in newer rescue versions] ~~chose~~ startup disk). Select the system disk and click apply Try to reboot.		* Select the disk as the startup disk (boot with option key held down [or from the system menu in newer rescue versions] choose startup disk). Select the system disk and click apply Try to reboot.
	* If the system disk doesn't show up on list of startup disks: Re-write the partition table (and boot sector?) (and EFI partition?) by using the partition editor in disk utility. The apply button will be disabled until a change is made, so temporarily down-size the partition and then set back to the original size and click apply. Try to reboot. Not sure what all this overwrites, but it does the trick. This can probably be done from Linux be re-writing the boot sector (and partition table?) with a known good copy from another machine. I have not tested that.		* If the system disk doesn't show up on list of startup disks: Re-write the partition table (and boot sector?) (and EFI partition?) by using the partition editor in disk utility. The apply button will be disabled until a change is made, so temporarily down-size the partition and then set back to the original size and click apply. Try to reboot. Not sure what all this overwrites, but it does the trick. This can probably be done from Linux be re-writing the boot sector (and partition table?) with a known good copy from another machine. I have not tested that.

	==Windows==		==Windows==
	Consider this a sign that it is time to switch to Linux.		Consider this a sign that it is time to switch to Linux.

Jeremy at 14:48, 20 July 2018

2018-07-20T14:48:29Z

← Older revision		Revision as of 14:48, 20 July 2018
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	See https://wiki.archlinux.org/index.php/File_recovery		See https://wiki.archlinux.org/index.php/File_recovery
			=System not booting=
			==MacOS==
			If a Macbook won't boot MacOS but instead shows a flashing folder graphic with a question mark:
			* Try checking the disk with disk utility (boot with Command-R held down). Try to reboot.
			* Select the disk as the startup disk (boot with option key held down [or from the system menu in newer rescue versions] chose startup disk). Select the system disk and click apply Try to reboot.
			* If the system disk doesn't show up on list of startup disks: Re-write the partition table (and boot sector?) (and EFI partition?) by using the partition editor in disk utility. The apply button will be disabled until a change is made, so temporarily down-size the partition and then set back to the original size and click apply. Try to reboot. Not sure what all this overwrites, but it does the trick. This can probably be done from Linux be re-writing the boot sector (and partition table?) with a known good copy from another machine. I have not tested that.
			==Windows==
			Consider this a sign that it is time to switch to Linux.

	=Failed Drive=		=Failed Drive=
	~~Tools~~:		If a drive is:
	* SpinRite		* Experiencing at least some bad sectors but otherwise seems readable, or
	* dd_rescue		* You can see that the drive is connected but can't see the partitions or file systems.
			Try these tools:
			* [https://www.gnu.org/software/ddrescue/ ddrescue] - Get your data off now while you can still read the disk
			* [https://www.grc.com/sr/spinrite.htm SpinRite] - Aggressively try to re-read bad sectors to move them and thus recover file data

	=Deleted File=		=Deleted File=
	Undelete tools:		Undelete tools:

Jeremy: Created page with "See https://wiki.archlinux.org/index.php/File_recovery =Failed Drive= Tools: * SpinRite * dd_rescue =Deleted File= Undelete tools: ==Windows== * Active Undelete * Recuva ==*ni..."

2016-06-26T18:11:38Z

Created page with "See https://wiki.archlinux.org/index.php/File_recovery =Failed Drive= Tools: * SpinRite * dd_rescue =Deleted File= Undelete tools: ==Windows== * Active Undelete * Recuva ==*ni..."

New page

See https://wiki.archlinux.org/index.php/File_recovery
=Failed Drive=
Tools:
* SpinRite
* dd_rescue
=Deleted File=
Undelete tools:
==Windows==
* Active Undelete
* Recuva
==*nix==
* extundelete
* photorec