Can i boot from 2nd HDD with ubuntu installed on it, without the 1st HDD in dv9925nr?

Old Desktop, now 16 years old.
well it is old and needs service as all do that old as in HARDware first.
the PC is 2006 old, a super relic now.
The Cmos battery this old is no good after 7 years. old.
so that be hopeless and makes BIOS go MAD just like you saw.
so replace it. for $1 , lane 15 CR2032 coin cell battery
then do this. 9 steps, next
https://www.pcdied.com/cmos.html#Reset_only.

next is that useless old 16 year old HDD,
we test it next, if bad no OS on earth will load or run there,
Impossible.! (like flat tire on a car same thing)

I use a linux boot dvd to run disktest, Ubuntu v20
more move the relic hdd to 2nd good PC and run this on that.
or just buy a SSD 128gb for $20 and end the HDD pain.....now.

10s seconds at run, and done.
https://www.passmark.com/products/diskcheckup/

100% free, safe and no ads or other junk here, pure GOLD


see free linux boot, run disk tests here.



https://www.pcdied.com/linux.html

have you went onto the BIOS to make sure that the boot options are correct e.g. CD DRIVE 1st priority?

after how many days are you opening your pc? cheque the ram.open it and after wiping it again fix it as it was.open one hard disk and try with one connected and be sure to post the result.

Yes as long as you make sure in BIOS you have it set to boot from USB before the HDD.
On the Ubuntu site from the download page are instructions on how to create a bootable USB for Ubuntu.

Comment if you need any further help.

am using pentium3,800/133MHZ,in this system how can i set cd rom,hdd as a 1st ,2nd boot device.now i want install new operating system .boot order option is not apear in my bios then how set the my cd room first.

check 1st is there any memory card plugin or not if plug then remove and restart the system 2nd install operating system .. if same then repalce hdd.. thanks...

did u change the boot sequence in BIOS....
if u made any changes there u need to set it back to boot from hardisk....
i suggest u keep this boot seq...
1st boot CDROM
2nd boot Floppy drive
3rd boot HDD

u can make to boot directly from HDD as 1st boot
but remember to make changes to BIOS everytime you want to boot from CDROM

to make cd/dvd drive the primary one..all u gotta do is to configure the bios(press DEL/F1/F2/F10 briskly, as applicable while at the system boot, this'll enter u in the CMOS utility, search for boot Device Priority)..make cd/dvd drive the primary or 1st boot device n 2nd device @ HDD 0..

download n install any boot manager (various are available)..eg. Power quest Boot Magic..it'll b quite useful when u wanna selective startup using Multiple OS like win xp pro sp2+ubuntu..

the best is to install ubuntu first in raw/undefined hdd space next go for xp..

always better to seek professional supervision of ur System admin/vendor....

go into your BIOS and on the bottom of your screen there should be a (last good config) of (fail-safe config) value for one or=f the F1 to F12 buttons. also. are you running a 4gb hdd??? or is that a typo? anyhow, XP REQUIRES 2GB at all times free if your hdd is running at less that that (cause its full) your boot up could be messed around. finally make sure that the little plug on your hdd is across the Master or cable select pins not the slave as this can cause probs too. good luck.