Change optical device for recovery boot
in [Laptops]
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From: Bob Villa on 5 Aug 2010 07:15 On Aug 5, 5:10 am, mike <spam...(a)go.com> wrote: > undisclosed wrote: > > Hello > > > I have a 7 year old Acer Aspire 1700 notebook. Its DVD/CD-ROM doesn't > > function, it is detected, correctly installed but it just can't read > > CD's properly anymore. The thing is I need recover the computer. So I > > used a external drive by USB. When I launch the recovery CD by the > > external drive, after boot and before starting the recovery it asks to > > put in CD1(system CD) in master CD-ROM (the internal broken one). > > Is any way to I change files in the recovery CD in order to bypass the > > need for master CD-ROM or other to recover my PC? > > > Many thanks > > There's a program called the PLOP boot managerhttp://www.plop.at/en/bootmanager.html > > I've used it to start from a floppy, then boot from > a device selected in plop. Looks interesting! Thanks Mike!
From: BillW50 on 5 Aug 2010 08:09 On 8/4/2010 3:56 PM, undisclosed wrote: > Nop, all ways of disconnecting the internal drive have already been > tried. Still believe the best way is modifying files to bypass the > master CD-ROM check. > > Bill, couldn't understand on booting from the hard drive and how can it > help in the recover CD not going for the internal drive. Help please Yeah the purpose of transferring the CD recovery to the hard drive and modifying the files to boot from the hard drive instead, because it bypasses the need for those DOS CD drivers. Thus you won't need that OAKCDROM.SYS which won't likely work for the USB CD drive anyway. You could use a flash drive too and do the very same thing. But making the flash drive DOS bootable is the hardest trick. I don't know if FDISK /MBR will work on a flash drive or not. But there is an HP utility out there that makes a DOS bootable flash. I believe you also need a DOS floppy boot disk which this utility uses to create it. "HP Drive Key Boot Utility" is the name for this tool by the way. -- Bill Gateway MX6124 ('06 era) 1 of 3 - Windows XP SP2
From: BillW50 on 5 Aug 2010 09:07
On 8/5/2010 4:47 AM, undisclosed wrote: > Yupii made it! > > At first I thought it was because the line a:\ckrom.exe in autoexec.bat > and the program it runs that checks the drive in use, so I erased it. > Then I realised that although the recovery cd boots from the USB drive > it doesn't install USB/CD drivers and it never recognizes the drive. > > Problem solved using USB_CD.SYS instead of OAKCDROM.SYS and changing it > in the config.sys. It installs the USB CD drive instead of the internal. > Still I keeped a:\ckrom.exe erased plus physically disconnected the > internal drive. > > Also came to find post in another forum with the same problem 8 years > ago: > h**p://www.computing.net/answers/windows-95/make-a-usb-cdrom-drive-bootable/119623.html > > Many thanks Oh good deal! I didn't know about the existence of an USB_CD.SYS DOS driver. And I was leaning on running it from the hard drive or flash drive instead. Thus avoiding the need for any DOS CD drivers at all. -- Bill Gateway MX6124 ('06 era) 1 of 3 - Windows XP SP2 |