Failsafe - Revision history

JulienB: /* Backup rootfs partition only */

2018-07-25T15:46:47Z

Backup rootfs partition only

@@ Line 61: / Line 61: @@
 <pre class="apf">
 # cd /tmp/mnt/rootfs/; tar cvzf /home/rootfs_$DATE.backup.tar.gz *
 </pre>
 ==Links==
+*

JulienB: /* Restore eMMC from backup */

2018-07-25T15:33:54Z

Restore eMMC from backup

@@ Line 35: / Line 35: @@
 <pre class="apf">
 # gunzip -c /mnt/nfs/emmc.bak.gz | pv | dd of=/dev/mmcblk2 conv=sync,noerror bs=512 count=7733248
 </pre>
 ==Links==
+*

JulienB: /* Generate it */

2016-09-12T19:05:34Z

Generate it

← Older revision		Revision as of 21:05, 12 September 2016
Line 6:		Line 6:
	===Generate it===		===Generate it===
	<pre class="host">		<pre class="host">
	$ make apf6failsafe_defconfig		$ make apf6failsafe_defconfig or $ make opos6ulfailsafe_defconfig
	$ make		$ make
	$ cp buildroot/output/images/~~apf6~~-linux.bin /tftpboot/		$ cp buildroot/output/images/*-linux.bin /tftpboot/
	</pre>		</pre>

JulienB: /* Intro */

2016-09-12T19:04:48Z

Intro

← Older revision		Revision as of 21:04, 12 September 2016
Line 1:		Line 1:
	==Intro==		==Intro==
	Failsafe is the short name for the RAM bootable rescue image for APF boards ([[APF6]] only for the moment). It is a Linux kernel + minimal initrd image all packed together in a standard ''apf6-linux.bin''.		Failsafe is the short name for the RAM bootable rescue image for APF boards ([[APF6]] & [[OPOS6UL]] only for the moment). It is a Linux kernel + minimal initrd image all packed together in a standard kernel image (''apf6-linux.bin'' or ''opos6ul-linux.bin'').

	==Installation==		==Installation==

JulienB: /* Restore eMMC rootfs from backup */

2015-08-06T12:58:38Z

Restore eMMC rootfs from backup

← Older revision		Revision as of 14:58, 6 August 2015
Line 31:		Line 31:
	* wait some minutes until backup is done ;-)		* wait some minutes until backup is done ;-)

	===Restore eMMC ~~rootfs~~ from backup===		===Restore eMMC from backup===
	* same principle:		* same principle:
	<pre class="apf">		<pre class="apf">
	# gunzip -c /mnt/nfs/~~root~~.bak.gz \| pv \| dd of=/dev/mmcblk2 conv=sync,noerror bs=~~128K~~		# gunzip -c /mnt/nfs/emmc.bak.gz \| pv \| dd of=/dev/mmcblk2 conv=sync,noerror bs=512 count=7733248
	</pre>		</pre>

	==Links==		==Links==
	*		*

JulienB: /* Backup eMMC rootfs */

2015-08-06T12:58:04Z

Backup eMMC rootfs

← Older revision		Revision as of 14:58, 6 August 2015
Line 24:		Line 24:
	* check eMMC filesystem		* check eMMC filesystem

	===Backup eMMC ~~rootfs~~===		===Backup eMMC===
	* you need a network connection with a server that can receive the backup (for example with [[NFS]], here mounted on ''/mnt/nfs/''):		* you need a network connection with a server that can receive the backup (for example with [[NFS]], here mounted on ''/mnt/nfs/''):
	<pre class="apf">		<pre class="apf">
	# dd if=/dev/mmcblk2 bs=512 count=7733248 conv=noerror,sync \| pv \| gzip -c -9 > /mnt/nfs/~~root~~.bak.gz		# dd if=/dev/mmcblk2 bs=512 count=7733248 conv=noerror,sync \| pv \| gzip -c -9 > /mnt/nfs/emmc.bak.gz
	</pre>		</pre>
	* wait some minutes until backup is done ;-)		* wait some minutes until backup is done ;-)

JulienB: /* Backup eMMC rootfs */

2015-08-06T12:57:12Z

Backup eMMC rootfs

← Older revision		Revision as of 14:57, 6 August 2015
Line 27:		Line 27:
	* you need a network connection with a server that can receive the backup (for example with [[NFS]], here mounted on ''/mnt/nfs/''):		* you need a network connection with a server that can receive the backup (for example with [[NFS]], here mounted on ''/mnt/nfs/''):
	<pre class="apf">		<pre class="apf">
	# dd if=/dev/mmcblk2 bs=~~128k~~ conv=noerror,sync \| pv \| gzip -c -9 > /mnt/nfs/root.bak.gz		# dd if=/dev/mmcblk2 bs=512 count=7733248 conv=noerror,sync \| pv \| gzip -c -9 > /mnt/nfs/root.bak.gz
	</pre>		</pre>
	* wait some minutes until backup is done ;-)		* wait some minutes until backup is done ;-)

JulienB: /* Backup eMMC rootfs */

2015-08-06T10:03:28Z

Backup eMMC rootfs

← Older revision		Revision as of 12:03, 6 August 2015
Line 30:		Line 30:
	</pre>		</pre>
	* wait some minutes until backup is done ;-)		* wait some minutes until backup is done ;-)

			===Restore eMMC rootfs from backup===
			* same principle:
			<pre class="apf">
			# gunzip -c /mnt/nfs/root.bak.gz \| pv \| dd of=/dev/mmcblk2 conv=sync,noerror bs=128K
			</pre>

	==Links==		==Links==
	*		*

JulienB: /* Backup eMMC rootfs */

2015-08-06T08:54:22Z

Backup eMMC rootfs

← Older revision		Revision as of 10:54, 6 August 2015
Line 25:		Line 25:

	===Backup eMMC rootfs===		===Backup eMMC rootfs===
	* you need a network connection with a server that can receive the backup:		* you need a network connection with a server that can receive the backup (for example with [[NFS]], here mounted on ''/mnt/nfs/''):
	<pre class="apf">		<pre class="apf">
	# dd if=/dev/mmcblk2 bs=~~64k~~ conv=noerror,sync \| pv \| gzip -c -9 > /~~tmp~~/root.bak.gz		# dd if=/dev/mmcblk2 bs=128k conv=noerror,sync \| pv \| gzip -c -9 > /mnt/nfs/root.bak.gz
	</pre>		</pre>
			* wait some minutes until backup is done ;-)

	==Links==		==Links==
	*		*

JulienB: New page: ==Intro== Failsafe is the short name for the RAM bootable rescue image for APF boards (APF6 only for the moment). It is a Linux kernel + minimal initrd image all packed together in a s...

2015-08-05T15:11:33Z

New page: ==Intro== Failsafe is the short name for the RAM bootable rescue image for APF boards (APF6 only for the moment). It is a Linux kernel + minimal initrd image all packed together in a s...

New page

==Intro==
Failsafe is the short name for the RAM bootable rescue image for APF boards ([[APF6]] only for the moment). It is a Linux kernel + minimal initrd image all packed together in a standard ''apf6-linux.bin''.

==Installation==

===Generate it===
<pre class="host">
$ make apf6failsafe_defconfig
$ make
$ cp buildroot/output/images/apf6-linux.bin /tftpboot/
</pre>

===Launch it===
<pre class="apf">
BIOS> run ramboot
</pre>

==Cool stuff that can be done with it==

===apf-config===
<pre class="apf">
# apf-config
</pre>
* check eMMC filesystem

===Backup eMMC rootfs===
* you need a network connection with a server that can receive the backup:
<pre class="apf">
# dd if=/dev/mmcblk2 bs=64k conv=noerror,sync | pv | gzip -c -9 > /tmp/root.bak.gz
</pre>

==Links==
*