Regarding MINIX 3 file system.
Patchaiappan
Erik van der Kouwe
> Can anyone tell me what file system is the MINIX 3 using.
http://en.wikipedia.org/wiki/MINIX_file_system, IIRC Operating
Systems: Design and Implementation (3rd ed., by A.S. Tanenbaum and
A.S. Woodhull) should provide more info, as does the source code.
With kind regards,
Erik
Evgeniy Ivanov
MINIX 3 use Minix File System (MFS). More precisely MFS V3.
Also it supports ext2 which can be used as root fs. Another supported
filesystems are ISO9660FS, NTFS (fuse-ntfs-3g, it is not merged into
master yet), HGFS and ProcFS.
On Sat, Oct 8, 2011 at 9:33 PM, Patchaiappan
<greenlowj...@gmail.com> wrote:
> Can anyone tell me what file system is the MINIX 3 using.
>
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Evgeniy Ivanov
Paul
that can read EXT2 filesystems?
and can a full system be built using only EXT2 and bypassing MFS? or
does minix use a INITRD like linux that has to be in MFS?
Regards
On Oct 8, 7:13 pm, Evgeniy Ivanov <lolkaanti...@gmail.com> wrote:
> Hi,
>
> MINIX 3 use Minix File System (MFS). More precisely MFS V3.
> Also it supports ext2 which can be used as root fs. Another supported
> filesystems are ISO9660FS, NTFS (fuse-ntfs-3g, it is not merged into
> master yet), HGFS and ProcFS.
>
> On Sat, Oct 8, 2011 at 9:33 PM, Patchaiappan
>
AntoineLeca
> does minix support EXT2 at the kernel level or is it more of a tool
> that can read EXT2 filesystems?
> and can a full system be built using only EXT2 and bypassing MFS?
is my understanding it will not be supported. Of course you will need
to modify slightly several Makefiles and also some scripts (like
drivers/ramdisk/rc); at the very most you'll need to mentally read
"ext2" where some tools have "mfs" hardwired in the screenouts.
The only two points I can think of are:
1) the ext2fs tools (mkfs, fsck) are not part of the base system (the
code is under GPL), you need to install one supplementary package to
do a successful full build.
2) Minix boot monitor does not know about ext2fs file systems right
now (and AFAIK nobody works on that); but I am hearing that there are
other boot monitors like GRUB which can; it might require starting
MINIX3 with the multiboot protocol rather than legacy Minix-specific
protocol. OTOH you can boot a "mainly" ext2-system where only the /
boot partition with its two files would be MFS (but separate /boot
file systems are not a supported feature of MINIX either.)
Do not forget that MINIX uses different conventions from Linux, like
different numbers for devices or different protocols for calling the
system; so a root FS for MINIX3 cannot serve as root FS for Linux, and
vice-versa (unless you heavily modify both systems.)
> or does minix use a INITRD like linux that has to be in MFS?
initrd; in the normal case, this ramdisk uses MFS; but I fail to see
where it can be a problem to use ext2fs here, since AFAIK the ext2
server has all the required features (mainly the hability to be the /
server)
Antoine
Paul
(yet)?
Does Linux still support MFS, i.e. Debian or similar, and is it as
easy (in-linux) to mount a Minix FS as: mount /dev/hd0 /mnt/minix
Maurizio Lombardi
> easy (in-linux) to mount a Minix FS as: mount /dev/hd0 /mnt/minix
Yes, the Linux kernel supports MFS V1/V2 and V3 filesystems.
--
--------------------
Maurizio Lombardi
Evgeniy Ivanov
On Sun, Oct 9, 2011 at 5:15 PM, Paul <paul-...@hotmail.co.uk> wrote:
> So in reality, a fully EXT2 based Minix system is not really feasable
> (yet)?
It is feasible, but it requires some work. I recall that somebody from
VU did a ext2 based MINIX installation.
Though there are almost no reasons for that, because ext2 and MFS are
pretty similar.
--
Evgeniy Ivanov
Paul
So a follow up question, how do i mount a minix FS from linux.
Assuming i have a separate HDD for each system, (am aware of different
drive naming schemes for minix & linux) so HDA is my linux system and
HDB would be my MINIX system, as I've tried
mount /dev/hdb1 /mnt/minix
but linux doesn't like this, does minix not use the traditional
partition system?
Maurizio Lombardi
> but linux doesn't like this, does minix not use the traditional
> partition system?
You must use the -t option, try the following command:
#mount -t minix /dev/hdb1 /mnt/minix
Cheers,
--
--------------------
Maurizio Lombardi
Antoine LECA
> Assuming i have a separate HDD for each system, (am aware of different
> drive naming schemes for minix & linux) so HDA is my linux system and
> HDB would be my MINIX system, as I've tried
> mount /dev/hdb1 /mnt/minix
> but linux doesn't like this, does minix not use the traditional
> partition system?
It should work if your MINIX file system is installed on /dev/c0d1p0;
it is not the most usual option though.
<UNTESTED>
Assuming that MINIX is installed in /dev/c0d1p0s[012], and assuming
there are no extended (DOS) partition on the drive, you would try
mount -t minix /dev/hdb5 /mnt/minix
mount -t minix /dev/hdb7 /mnt/minix/usr
mount -t minix /dev/hdb6 /mnt/minix/home
</UNTESTED>
Antoine
Janne Kiiski
>> mount /dev/hdb1 /mnt/minix
>> but linux doesn't like this, does minix not use the traditional
>> partition system?
> You must use the -t option, try the following command:
>
> #mount -t minix /dev/hdb1 /mnt/minix
>
> Cheers,
Command I've used to check which device have minix partitions...
#dmesg | grep minix
[ 2.585994] sda1: <minix: sda5 sda6 sda7 >
Also check if your linux kernel supports minix filesystem:
#grep minix /proc/filesystems
minix
If no result then filesystem is not supported or its compiled as module
and not yet loaded so, try:
#sudo modprobe minix
#grep minix /proc/filesystems
If still no positive result then I would rebuild linux kernel and make
sure that minix filesystem is compiled within...
BR,
Janne
Jeff Pohlmeyer
> Command I've used to check which device have minix partitions...
> #dmesg | grep minix
> [ 2.585994] sda1: <minix: sda5 sda6 sda7 >
Ah, nice trick. I was wondering how to to get the device names
for the subpartitions!
You can also check your kernel config using one of these commands:
# grep MINIX /boot/config-`uname -r`
# zgrep MINIX /proc/config.gz
CONFIG_MINIX_FS=y <- built into kernel
CONFIG_MINIX_FS=m <-separate kernel module
CONFIG_MINIX_FS is not set <- No Minix support
CONFIG_MINIX_SUBPARTITION <-will either be "y" or "is not set"
- Jeff
- Jeff
Evgeniy Ivanov
On Wed, Oct 12, 2011 at 7:59 PM, Janne Kiiski <janne....@gmail.com> wrote:
> On 10/11/2011 12:03 AM, Maurizio Lombardi wrote:
>>>
>>> mount /dev/hdb1 /mnt/minix
>>> but linux doesn't like this, does minix not use the traditional
>>> partition system?
>>
>> You must use the -t option, try the following command:
>>
>> #mount -t minix /dev/hdb1 /mnt/minix
>>
>> Cheers,
>
> Command I've used to check which device have minix partitions...
>
> #dmesg | grep minix
> [ 2.585994] sda1: <minix: sda5 sda6 sda7 >
Good trick. But I believe, that "fdisk -l /dev/sda" shows it as well.
> Also check if your linux kernel supports minix filesystem:
>
> #grep minix /proc/filesystems
> minix
>
> If no result then filesystem is not supported or its compiled as module and
> not yet loaded so, try:
>
> #sudo modprobe minix
> #grep minix /proc/filesystems
>
> If still no positive result then I would rebuild linux kernel and make sure
> that minix filesystem is compiled within...
>
> BR,
> Janne
>
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