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Old 05-11-2002, 05:26 AM   #1
LQ Newbie
Registered: Jan 2002
Distribution: Mandrake 8.2, Debian 2.2r6
Posts: 17

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Partition limitations?

Here's the scenario. I'm running the latest versions of Mandrake and Debian on a single machine. The partitions are as follows:

The Mandrake installation
hda1 root ~1GB
hda6 /usr ~2GB
hda7 /home ~1GB
hda8 /var ~1GB

The Debian installation is the same for partitions hda9 - hda13. There are a couple of things that make me go Initially I wanted to setup one primary partition with several logicals for Mandrake and another primary partition with several logicals for Debian because in my mind I'm looking at this like I'm using msdos fdisk, you know, your logicals nested under your primaries, but I was unable to set it up that way and went with what I illustrated above; one primary and a bunch of logicals. I'm allowed three other primaries right? So why can't I use them? Ok, so I can live with this setup if I have too, no biggie. But now when I go to setup my windows partition for samba stuff I run into some trouble. I partition hda14 to take up the rest of the hard disk. ~10GB. I want to access this from both Mandrake and Debian and from windows. I first did it in Mandrake using the Mandrake Control Center but was unable to mount the disk and was given a variety of reasons why it failed: too many partitions, invalid parameters, etc... Well, which is it? Beats me? Trying it in Debian using fdisk results in the same questions. Also, I don't have the option to make the windows partition a primary one. Again, when I have at least two available. Do the primaries have to be contiguous??? I don't know. Anyway, I know this is a long paragraph and junk but anyone who stuck around long enough to get to this sentence, thanks. Any help is much appreciated.
Old 05-11-2002, 07:26 AM   #2
Registered: Apr 2002
Posts: 84

Rep: Reputation: 15
well, it's possible those devices don't exist! the "partitions" exist, but linux doesn't know how to access them because only a limited number of harddrive devices are created. here's a quote I found on the web that relates - hope it makes sense:

Quote: save time (or disk space) and RAM, we don't
create device nodes for those partitions. It is extremely unusual
for users to have more than 8 partitions on a non-primary disk.

You can get the device nodes via

mknod -m 600 /dev/hdb9 b 3 73
mknod -m 600 /dev/hdb10 b 3 74
mknod -m 600 /dev/hdb11 b 3 75
note, this relates to a non-debian distribution, but it's likely you are experiencing the same issue. few people even have a /dev/hda14, so it seems possible that the debian folks don't create any devices that high. but, like the above quote illustrates, you can just make your own!

man mknod will give you some more clues. also, your major and minor numbers will be different than those above. try to figure out those numbers for /dev/hda13, and start numbering sequentially from there.

anyoo, hope this makes sense, and helps! good luck!


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