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Contribs.org Forums => General Discussion => Topic started by: mercyh on June 25, 2008, 05:49:08 PM

Title: mounting SME7.3 filesystems with other linux distro's
Post by: mercyh on June 25, 2008, 05:49:08 PM

Hi,

I have a question about the filesystem used by SME. I have used Ubuntu live CD to mount and change partitions on other Linux distros using ext3 file systems. I suggested to somebody on the forum in this thread  http://forums.contribs.org/index.php?topic=41362.0 that they use it for SME. They came back with the information that it would not work. I then booted my test server with the Ubuntu LiveCD. The boot partition was recognized fine, however the main partition showed an unsupported file system. Gparted gave the same information. Can somebody explain or direct me to documentation that explains what is going on?

Title: Re: mounting SME7.3 filesystems with other linux distro's
Post by: Stefano on June 25, 2008, 06:10:17 PM

hi

if you have setup your server without -no-lvm flag on boot, you have the lvm layer before your fs.

search on the forums or, better, read this:
http://wiki.contribs.org/Recovering_SME_Server_with_lvm_drives (http://wiki.contribs.org/Recovering_SME_Server_with_lvm_drives)

HTH
ciao

Stefano

Title: Re: mounting SME7.3 filesystems with other linux distro's
Post by: mercyh on June 25, 2008, 06:21:45 PM

Stefano,

Thanks a lot for the explanation and link. That is a bit tough reading for somebody that started with Windoze, however after taking my own advise (Read it from start to finish at least three times) it begins to make sense.

One quick further question. Is the boot partition not RAIDED?

Thanks a lot for furthering my education :)

Royce

Title: Re: mounting SME7.3 filesystems with other linux distro's
Post by: mercyh on June 25, 2008, 06:28:04 PM

Quote

One quick further question. Is the boot partition not RAIDED?

It seems to me that it sits in front of the LVM layer...........

Title: Re: mounting SME7.3 filesystems with other linux distro's
Post by: Stefano on June 25, 2008, 06:29:52 PM

Quote from: mercyh on June 25, 2008, 06:21:45 PM

One quick further question. Is the boot partition not RAIDED?

the boot partition is in raid1.. so, it's RAIDED (as you said) but not under lvm because of grub's limitations.

with (classic situation) 2 hds, you have:

- 2 single hd each partitioned in 2 (let's say sda1, sda2, sdb1, sdb2); tipe of partition is fd (linux raid autodetect)
- 2 sw raid devices: /dev/md1 (sda1 + sdb1) and /dev/md2 (sda2 + sdb2)..
- /dev/md1 is directly formatted with ext3 fs and mounted under /boot
- over /dev/md2 you got lvm -> /dev/mapper/main-root
- /dev/mapper/main-root is formatted with ext3 fs and is your /

that's all..

HTH
Ciao
Stefano

Title: Re: mounting SME7.3 filesystems with other linux distro's
Post by: mercyh on June 25, 2008, 06:34:21 PM

Got it.

Thanks for very clear explaination 8-)

Royce