Alternative upgrade mechanism



  • Or subtitle:  How much memory?

    At the moment the three embedded systems of m0n0wall, FreeNAS, and pfSense all use dd to perform full upgrades on HDD/CF images.  In pfSense I see the development of an binary patch update mechanism but unfortunately only allows updates and new files.  I went for an alternative of allowing upload of compressed ISO images, decompressing into MFS, and then using rsync with a quite a few options to the local root file system.  The ISO images I generate are significantly smaller as their is no configuration partition.

    
    rsync \
    	--verbose \
    	--archive \
    	--hard-links \
    	--dry-run \
    	--one-file-system \
    	--delete-after \
    	--delay-updates \
    	--numeric-ids \
    	--checksum \
    	--omit-dir-times \
    	--ignore-times \
    	--exclude=etc/fstab
    
    

    With suitable hosting it should be possible to use rsync+ssh as another alternative completely avoiding upload & decompressing the firmware image.



  • See the RC2e thread.  I have scripts that do something similar now.



  • I'm actually having a lot of problems with the FreeBSD kernel panicing now, it worked fine on NFS root and there is plenty of memory available (256MB).  I can mount the image, rsync, but after unmounting the kernel panics and reboots.

    :(



  • Which version?  6.1-RELEASE?



  • RELENG_6 from CVS, I'm justing rebuilding with the latest now.  I used to use RELENG_6_1 but it broke so I went back to 6, the release tag is RELENG_6_1_RELEASE?



  • Ahh okay, RELENG_6 should be stable.  There was a major NFS bug in 6.1 release however.



  • Nice, but on NFS its ok, I'll try a few different tag versions today and see what works.  Fixing this I can get another release out and work on the VLAN DHCP support.



  • Release is RELENG_6_1_0_RELEASE, trying that instead  :D



  • After some Gentoo inspired mistakes, I think I have pin pointed this bug (?) down to unmounting a second mount of the root device.  Is this a known strange problem?  ???



  • Andrew fixed a few things in this area over the weekend.


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