Change From Loopback - Revision history

X1011: deprecated template

2009-07-26T03:05:45Z

deprecated template

Rboatright: de

2009-07-25T01:59:37Z

Rboatright: depricated

2009-07-24T16:04:43Z

depricated

Hopspitfire at 20:55, 20 July 2009

2009-07-20T20:55:11Z

Hopspitfire: New page: == Notes on the old loopback method== We used to use a loopback file on /media/internal to store the contents of /opt. This didn't work well, since as long as the loopback filesystem is ...

2009-07-20T20:54:57Z

New page: == Notes on the old loopback method== We used to use a loopback file on /media/internal to store the contents of /opt. This didn't work well, since as long as the loopback filesystem is ...

New page

== Notes on the old loopback method==

We used to use a loopback file on /media/internal to store the contents of /opt. This didn't work well, since as long as the loopback filesystem is mounted, this breaks the Pre's USB/MediaSync modes. When the user tries to enable either mode, webOS will try to umount /media/internal, and as long as the optware.ext3 file is being used, it can't. If you need to migrate from this mode to the new instructions, you need to kill any processes running from that filesystem and umount it, like so:
<pre><nowiki>
root@castle:/# initctl stop webos-sshenabler # this will stop the sshenabler service and kill dropbear
root@castle:/# umount /opt
root@castle:/# losetup -d /dev/loop0 # This command MUST be done—it's not enough to "umount /opt".
</nowiki></pre>

== To convert from the old loopback method to the /var/opt method without losing SSH access:==
<pre><nowiki>
root@castle:/var# rsync -va /opt /var/
root@castle:/var# cat > /var/remount.sh
#!/bin/ash -x
initctl stop webos-sshenabler
pkill dropbear
pkill -9 dropbear
umount /opt
losetup -d /dev/loop0
mount -o bind /var/opt /opt
initctl start webos-sshenabler
<CTRL>-D
root@castle:/var# chmod +x /var/remount.sh
root@castle:/var# nohup /var/remount.sh &
</nowiki></pre>

This will stop the Dropbear process, mount the new /var/opt, and restart the Dropbear process.

Login again, and check /var/nohup.out for errors. Also check the output of the 'mount' command to make sure it has
<pre><nowiki>/dev/mapper/store-var on /opt type ext3 (rw,noatime,data=ordered)</nowiki></pre>
instead of a reference to "/media/internal/optware.ext3".

Now, you can remove the
<pre><nowiki>/media/internal/optware.ext3 /opt ext3 loop 0 0</nowiki></pre>
line from /etc/fstab and replace it with
<pre><nowiki>/var/opt /opt bind defaults,bind 0 0</nowiki></pre>
specified in step 2a.

You can also remove the following files upon verifying that everything works after a reboot:
/media/internal/optware.ext3
/var/remount.sh
/var/nohup.out

← Older revision		Revision as of 03:05, 26 July 2009
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−	~~= This method is [[Deprecated Pages~~\|~~deprecated]].~~ Use the method on the [[Portal:Accessing Linux\|Accessing Linux]] page instead~~! =~~	+	{{template:deprecated \|
		+	Use the method on the [[Portal:Accessing Linux\|Accessing Linux]] page instead.
		+	}}
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	== Notes on the old loopback method (deprecated)==		== Notes on the old loopback method (deprecated)==

← Older revision		Revision as of 01:59, 25 July 2009
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−	= This method is deprecated. Use the method on the [[Portal:Accessing Linux\|Accessing Linux]] page instead! =	+	= This method is [[Deprecated Pages\|deprecated]]. Use the method on the [[Portal:Accessing Linux\|Accessing Linux]] page instead! =
	== Notes on the old loopback method (deprecated)==		== Notes on the old loopback method (deprecated)==

← Older revision		Revision as of 16:04, 24 July 2009
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		+	= This method is deprecated. Use the method on the [[Portal:Accessing Linux\|Accessing Linux]] page instead! =
	== Notes on the old loopback method (deprecated)==		== Notes on the old loopback method (deprecated)==

← Older revision		Revision as of 20:55, 20 July 2009
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−	== Notes on the old loopback method==	+	== Notes on the old loopback method (deprecated)==

	We used to use a loopback file on /media/internal to store the contents of /opt. This didn't work well, since as long as the loopback filesystem is mounted, this breaks the Pre's USB/MediaSync modes. When the user tries to enable either mode, webOS will try to umount /media/internal, and as long as the optware.ext3 file is being used, it can't. If you need to migrate from this mode to the new instructions, you need to kill any processes running from that filesystem and umount it, like so:		We used to use a loopback file on /media/internal to store the contents of /opt. This didn't work well, since as long as the loopback filesystem is mounted, this breaks the Pre's USB/MediaSync modes. When the user tries to enable either mode, webOS will try to umount /media/internal, and as long as the optware.ext3 file is being used, it can't. If you need to migrate from this mode to the new instructions, you need to kill any processes running from that filesystem and umount it, like so: