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Old 03-18-2008, 09:09 AM   #1
Registered: Dec 2004
Distribution: Debian
Posts: 40

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USB pen-drive as a boot partition

Hi, I would like to use a 1gb pen-drive as my /boot partition for a SunFire server.
I am installing an ETCH server with a sw raid1 on both sata disks. To avoid loosing the MBR in case the first disk dies I would like to put it in a usb stick and also mount the boot part there.

Can I just install the everything normally and tell grub to install it self on /dev/sdc? Should I look out for any "gotchas"?

thanks in advace.
Old 03-19-2008, 07:14 AM   #2
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Registered: Oct 2003
Location: Australia
Distribution: MX 17
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grub can be installed on various devices but can be crippled by your bios.

2) altho you say raid 1 be aware grub-raid does not work on 0. But I do not use raid myself so can only offer some stuff FYI.

bottom line...grub is safer in non-raided partition

3) dd is super easy to use to copy your mbr drive 1 to a backup for when you slot in drive 2.

but there is a gotcha....see the partimage site if you intend....on a server...I suspect you more than 4 primary partitions....meaning you need to know how to backup your extended-logical system as well.

4) I am ignorant of server hw...have you tested grub will work with it already?
Old 03-20-2008, 08:53 AM   #3
Registered: Dec 2004
Distribution: Debian
Posts: 40

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Rep: Reputation: 15
Uff had no idea GRUB had any issues with RAIDs, is there an alternative? I used lilo in the past, are there other more 'raid friendly' boot loaders out there?

Well the server was running a raid1 setup already, but now I am trying to switch from CentOS to Debian. In the original setup ther was only the / partition mounted on md1 (md0 was swap).

I did not plan for more then 4 partitions tbh, just a swap, boot, root and home. That is a set up that worked fine for me in the past so I see no reason to change it (please correct me if I am wrong).


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