Topic: RUSH SME Server 7 boot problem after power surge -- GRUB !

[Snoopyski]

Hello everyone,

See my error message above:

GRUB Loading stage1.5.

GRUB loading, please wait...
Error 2

Now I boot it with SME Server 7 CD-Rom in RESCUE mode and I type the following command:

fsck /dev/sda1

This command fsck on my partition /dev/sda1 give me this error:

Group descriptor look bas... Trying backup blocks...
Resize inode not valid. Recreate ?

What I need to answer ? Do I lost something ?

Thanks,

Snoopyski

[ryan]

Did this happen with or without a UPS?

As far as the repair, I would personally do an image backup of the server using ghost 4 linux before attempting to run any file or disk utility.

ryan

[byte]

Hello everyone,
fsck /dev/sda1

The fsck is for ext2 filesystem in SME 7.0x we are using ext3, try running...

e2fsck /dev/sda1

Before have a read about e2fsck which can check both ext2 and ext3

HTH

[whistleruk]

Snoopyski you fix this problem? I'm having the same at the momment.

[haymann]

GRUB Loading stage1.5.

GRUB loading, please wait...
Error 2

I just got the same error after trying to setup a USB hard disk. I don't know if the two events are related, but that is the only thing that changed...

I was trying to get smeserver-dar2 to be able to backup to a USB disk. I read in many places on this forum that USB disks are auto mounted and appear in /media/usbdisk. However on my server the only item that I had in the /media directory was labeled cdrecorder...

So following the promising looking How-to by dmay I looked at my message log and saw an entry similar to this:

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fstab-sync[3298]: added mount point /media/cdrecorder for /dev/hddThe "3298" isn't the same number that I had, but I don't recall what it was...

I then tried the following from the how-to

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dd if=/dev/zero of=/dev/hdd bs=512 count=63and the output I received was

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63+0 records in
63+0 records out just like the how-to indicated that I should. Continuing w/ the how-to I tried

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fdisk /dev/hdd but got an error that said the drive was unreadable.

I searched the forum a little more and saw a some information about /etc/fstab (maybe from here...?) And so I modified my fstab to show /dev/hdd to /media/usbdisk instead of /media/cdrecorder, I can't remember exactly what the syntax that I changed was and I can't get to it now... I tried again to fdisk and it was still unreadable so I rebooted. Now I get the GRUB error...

I am looking to move all my data to a new server anyway, so as long as I can get to the data to save it, that will be fine. My server has 4 SATA drives in a RAID5 array.
I appreciate any assistance!!

[CharlieBrady]

Hello everyone,
fsck /dev/sda1

The fsck is for ext2 filesystem in SME 7.0x we are using ext3, ...

Don't forget that we are also using RAID1 and we are also using LVM.

try running...

e2fsck /dev/sda1

I don't think that will be the correct thing to do. My file systems are on /dev/md1 and /dev/mapper/main-root, not /dev/sda1 etc.

[haymann]

So would e2fsck /dev/md1 and/or e2fsck /dev/mapper/main-root work for a RAID5 setup?

[haymann]

Trying a different approach then...

Does anyone know if I can use WinSCP to connect to a server in rescue mode? I enabled networking and have an IP address, but the connection is refused. If I can copy my data off this server, then I won't need to worry about grub anymore.
Thanks,
Ryan

[byte]

but the connection is refused.

If your in rescue mode your ssh service wouldn't be running so you would need to issue at command line

/etc/rc7.d/S**sshd start

Where ** is a number

[haymann]

Thank you for the help!!

I had to try

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/etc/rc.d/rc7.d/S85sshd startbut I get

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S85sshd: command not found

Did I miss something? I am not that proficient at Linux command line stuff yet..
Ryan

[haymann]

OK so when I ran chroot /mnt/sysimage and then ran /etc/rc7.d/S85sshd start I get this

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Starting sshd:runsvctrl: warning: /service/sshd/log: runsv not running.
runsvctrl: warning: /service/sshd: runsv not running.
It seems like I am getting closer...

[ldkeen]

If you need to mount the old sme server 7.0 disk and get the data off it follow this procedure:

Boot from SME Server 7.1 install CD
press F5
type "sme rescue" at the command prompt and hit enter
Note: don't start the network and skip mounting the filesystem.
Rename the Volume Group so it doesn't conflict with your new setup

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#mdadm -AR /dev/md5 /dev/sdb2
#lvm vgscan
#lvm vgs -v
#lvm vgchange -a n
#lvm vgrename orig_vg_name new_vg_name
#exit
Now remove the CD and reboot from a clean installed sme server 7.1 with the old drive attached as secondary slave or via usb caddy.

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#mdadm -AR /dev/md5 /dev/sdb2
#vgscan
#vgchange -a y new_vg_name
#mkdir /mnt/tmp
#mount /dev/new_vg_name/root /mnt/tmp

[haymann]

Now remove the CD and reboot from a clean installed sme server 7.1 with the old drive attached as secondary slave or via usb caddy.

But I have a RAID 5 array... I'll need more than one of my old disks right?

[ldkeen]

Hayman,
Did you try booting from the sme server CD in rescue mode and running grub-install??

I'll need more than one of my old disks right?

Yes, you'll need at least n-1 (at least 2 of a 3 disk raid5) drives to be able to get the data from it.
Lloyd[/quote]

[haymann]

Hayman,
Did you try booting from the sme server CD in rescue mode and running grub-install??

No, I had not, but just did. I am sure this is pretty basic, but if I just run grub-install it tells me

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install_device not specified
I just don't know where to point it...

In trying to get ssh to run I tried

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/etc/init.d/sshd start and it says that ssh stated, but I still get connection refused errors... This is frustrating to have the data there, but not be able to transfer it to my new server.

Incidentally, the main reason that I am changing servers is to get away from RAID 5 and get to RAID 1... I wish I could just mount one drive in another machine and pull what I need  
Thank you for your continued help, I appreciate it!
Ryan