hard drive partition not found and display deprecated

[john374]

Tried installing from two different iso's onto a hard drive containing 5 different OS's. All boot using Grub2.
Installation apeared suscessful.
Rebuild grub.cfg using my main OS (Linux Mint). My usual sucessful method for the other 5 OS's.
Upon rebooting into mageia I received the following error message (1) "vga=788 is deprecated. Use set gfxpayload=... instead." "error: no such partition. Press ... continue....."
After pressing continue I received the following screen display: (2)
BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
EDD information not available.
id: Skipping autodetection of RAID arrays. (raid=autodetect will force)
JFS: Cannot open root device "LABEL=mageia" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Pdi: 1, comm: swapper Not tainted 2.6.38.7-server-1.mga #1
Call Trace:
[<0c0483726>] ? panic+0x5c/0x157
[<0c06c3c79>] ? mount_block_root+0xlc0/0x259
[<c022e4c0l>] ? sysys-mknod+0x2c/0x30
[<c06c3e8a>] ? mount_root+0x59/0x5f
[<c0bc3fde>] ? prepare_namespace+0x14e/0xl92
[<c0220055>] ? sys_access+0x25/0x30
[<c06c39f6>] ? kernel_inlt+0x1bb/0xlca
[<c06c383b>] ? kernel_init+0x0/0x1ca
[<c0l0b7fe)] ? kernel_thread_helper+0x6/0x10

The first error should be easy to correct with a change to the grub.cfg file?
The second error I'm not sure how to continue. I've never had grub2 fail in that manner. Any susgestions?

[john374]

Changed way in which OS's were booted.
It seems that if mageia is booted by itself, that is, using the MBR then most of the services will run correctly; therefore it seems that the boot method in mageia does not play fair with Grub2.
I will now try to use mageia's boot method to multiboot all the other OS's.
Not an ideal solution since mageia is not my primary OS.

[isadora]

Just to let you know about existence of this topic:
viewtopic.php?f=7&t=888&p=6501&hilit=grub2#p6501

Don't know if it is of any help, but one never knows.

[john374]

Thanks for the reply.
I'll give it a try.
Should have known the answer would be in a reference to Ubuntu.