TiVo Community Forums Archives - partitions other than 4 or 7 ??

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partitions other than 4 or 7 ??
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Posted by: DTVgod

when i was digging around in my tivo drive after making my backup i noticed it wouldnt let me mount any partitions other than 4 or 7, but now i see someone talking about storing things in partition 9 in /var .. is there a trick to mounting the other partitions or is it something that must be done from a bash prompt??? just trying to get this clarified.. thanks

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Sony T-60
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and oh.. yeah...emulator

Posted by: sjf

If you can mount 4 and/or 7, you should be able to mount 9.

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A second was defined in 1967 as "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the Cesium-133 atom."

Posted by: maracle

I can't seem to mount -any- partition when I boot up to my regular Red Hat 7. But when I use DBD, it works fine....anyone have an explaination for this?

Posted by: sjf

Yes.
The drive is byte swapped, so requires a kernel that understands byte swapping. Also, the partitions use a different identifier. There are linux patches available to allow a 'standard' linux system to understand tivo drives. Search this forum for more info.

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A second was defined in 1967 as "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the Cesium-133 atom."

Posted by: DTVgod

really...hmmm..
should i be able to mount all 12-13(however many) partitons?? or just 4-7-9 ????

4-7 mounted fine, but all others gave me a (invaild dos partition..blah..blah.. error)

hmmm.... ill try someomre.. thanks

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Sony T-60
ElipticaL Dish
and oh.. yeah...emulator

[This message has been edited by DTVgod (edited 08-18-2001).]

[This message has been edited by DTVgod (edited 08-18-2001).]

Posted by: Worf

Only 4 (root1), 7 (root2) and 9 (var) are mountable. The other partitions are special partitions, and not understandable by Linux (partitions 2 and 3 are boot1, boot2, respectively, there's a swap partition, and also, there's the standard MFS data and application partitions). None of the other partitions make sense to mount, and the MFS partition is not understood by Linux.

Posted by: sjf

What I don't understand is -- If the mfs partitions CANNOT even be mounted, then how do various utilities like Tiger's mfstools manage to access them?

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A second was defined in 1967 as "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the Cesium-133 atom."

Posted by: Tiger

Well without looking at the particular example you brought up (Well okay, partly because I know it well enough to not have to look at it) I can tell you that it does it the same way dd is able to access the entire drive. It uses a special device node. When you open /dev/hdX, you are basically opening a really big file that just happens to be the entire contents of the hard drive. In fact, you open and access it just like a regular file. So even programs not designed to access drives directly can access it.

In fact, the whole need for DD is kind of just a convenience. With dd, you can access more data at once, speeding up the reads. But you could easily do gzip < /dev/hdX > backup.gz just as easily.

All mounting does is associate a known filesystem with a directory in the filesystem namespace.

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