iLiad Anybody knows what's happening during upgrades?

mtas · 12-14-2006, 04:45 AM

Is there anybody that has some idea about how the iRex updates are performed? Is it a file system image that's written, a tar ball or just a file-by-file copy?

The reason for this question is that I'm playing around with a generic install script for the community developed applications. I would like to use a method that's as "bullet proof" as possible and at the same time try to minimise both the number of writes as well as the use of space in the root file system.

Matthijs · 12-14-2006, 04:56 AM

The entire root filesystem is overwritten.

mtas · 12-14-2006, 05:06 AM

Quote:

Originally Posted by Matthijs

The entire root filesystem is overwritten.

Yes, but the question is how. If it's done as a restore of a backup dump or by deleting all files and then writing the new content I'm happy. I guess that's what happening since files added before an upgrade is removed.

This is good, then I know what to expect and can continue my work.

Thank you for your prompt answer.

Matthijs · 12-14-2006, 05:12 AM

The command used is
zcat fs.gz | dd of=/dev/tffsa2 bs=1k
So yes: a raw filesystem dump is restored.

12-14-2006, 04:45 AM	#1
mtas Enthusiast Posts: 42 Karma: 145 Join Date: Oct 2006 Device: iLiad	Anybody knows what's happening during upgrades? Is there anybody that has some idea about how the iRex updates are performed? Is it a file system image that's written, a tar ball or just a file-by-file copy? The reason for this question is that I'm playing around with a generic install script for the community developed applications. I would like to use a method that's as "bullet proof" as possible and at the same time try to minimise both the number of writes as well as the use of space in the root file system.

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12-14-2006, 04:56 AM	#2
Matthijs Groupie Posts: 199 Karma: 666 Join Date: Oct 2006 Location: Eindhoven, the Netherlands Device: iLiad, DR1000S, DR800SG	The entire root filesystem is overwritten.

12-14-2006, 05:12 AM	#4
Matthijs Groupie Posts: 199 Karma: 666 Join Date: Oct 2006 Location: Eindhoven, the Netherlands Device: iLiad, DR1000S, DR800SG	The command used is zcat fs.gz \| dd of=/dev/tffsa2 bs=1k So yes: a raw filesystem dump is restored.

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