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robvr
Tux's lil' helper
Joined: 10 Mar 2004
Posts: 96
Location: Best, The Netherlands
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 Posted: Thu Dec 07, 2006 7:12 pm Post subject: looking for read-write compressed filesystem |
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I've got an older machine that is low on harddisk space. There's enough to cram a gentoo install into it, but its tight. I figured that using a compressed filesystem for some part of the system might give me some more breathing room, but such a filesystem would have to be writeable, and the compressed filesystems I've been able to find so far appear to be read-only, and primarily intended for things like bootdiscs, CD images etc. What I'd like to find is something like Stacker (from the DOS era), of compressed volumes as in windows. Is there such a system?
Regards
Rob |
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DocReedSolomon
Guru
Joined: 28 Aug 2006
Posts: 419
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| Posted: Thu Dec 07, 2006 11:55 pm Post subject: |
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| jffs2. its rw, your kernel will most likely support this (even 2.4). |
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robvr
Tux's lil' helper
Joined: 10 Mar 2004
Posts: 96
Location: Best, The Netherlands
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| Posted: Fri Dec 08, 2006 1:45 pm Post subject: |
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| DocReedSolomon wrote: | | jffs2. its rw, your kernel will most likely support this (even 2.4). |
I know its in the kernel somewhere, but I can't find it. Do you know where its hiding, and what other kernel options need to be selected for it to become visible?
Rob |
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DocReedSolomon
Guru
Joined: 28 Aug 2006
Posts: 419
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| Posted: Fri Dec 08, 2006 3:28 pm Post subject: |
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it would help if you tell as what kernel you are using, right?
unfortunately i am unable to find it right now myself 
but i am almost sure i have seen it more then once.
did it get removed?
dunno
however, i did find:
| Code: |
* sys-fs/mtd
Latest version available: 20050519
Latest version installed: [ Not Installed ]
Size of downloaded files: 3,683 kB
Homepage: http://sources.redhat.com/jffs2/
Description: JFFS2 is a log-structured file system designed for use on flash devices in embedded systems.
License: GPL-2
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mv
Watchman
Joined: 20 Apr 2005
Posts: 6749
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| Posted: Fri Dec 08, 2006 7:35 pm Post subject: |
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| IIRC there are some writable compressing filesystems built on fuse, but they are not yet in portage. Another possibility might be to use unionfs to make it writable. Look for younger comments on "compressing portage using squashfs - initscript method" somewhere in these forums here. |
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robvr
Tux's lil' helper
Joined: 10 Mar 2004
Posts: 96
Location: Best, The Netherlands
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| Posted: Fri Dec 08, 2006 10:47 pm Post subject: |
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| DocReedSolomon wrote: | it would help if you tell as what kernel you are using, right?
unfortunately i am unable to find it right now myself
but i am almost sure i have seen it more then once.
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Duh! Feeling sort of dumb here. Anyway, that would be gentoo-sources 2.6.18-r4.
Going from memory, I do seem to recall seing it somewhere too. I just ran a grep over the kernel sources, and all references to JFFS seem to be for non-x86 architectures. Maybe I remember seeing it from when I was using an ARM kernel at work? I'm too tired now to figure out how to switch architectures or how to enable stuff that normally isn't there for a given architecture. I'll see if I can find the time for that on Sunday.
Rob |
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