Re: Etch with encrypted lvm, remapping of sata hd names, problem
"Thomas Anderson" <andersonthomas@gmail.com> wrote in message
[🔎] 46222DB0.9050904@gmail.com">news:[🔎] 46222DB0.9050904@gmail.com...
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> Hi,
>
> I disconnected all my drives during a fresh install of Debian Etch with
> encrypted LVM on a new sata hd. Everything work fine if I don't add my
> old sata hd.
>
> If I add the old sata hd, Etch refuses to accept my passphrase during
> boot to mount my / partition. When I booted Knoppix to diagnose the
> system, I noticed that the names of the hd's changed.
> Etch was during install sda1 and now it is sdb1. I tried to add "map
> (hd0) (hd1)" and "map (hd1) (hd0)" in grub, but it still wont work.
> Any ideas/help?
>
> The old sata hd has winxp.
> If I connect the old sata hd on sata cable 1, winxp boots.
> If I connect the old sata hd on sata cable 2, Etch boots.
> My bios doesn't let me choose a particular sata drive to boot from. It
> only lets me choose "SCSI", "CDROM" or the pata drives.
>
> So my bios thinks Etch is the first sata hd in my system and chooses the
> Etch hd to boot from.
> But after my bios let's control over to Etch, Etch thinks of itself as
> being sdb1. Strange, huh?
>
> - --
> Regards,
>
> Thomas Anderson
> "Quidquid latine dictum sit, altum sonatur"
>
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Thomas,
I too have had the same problems while attempting to install Etch on sata
drives. The system can change the drive names when you remove/add a drive.
To solve this problem you have three options.
1. You can change the menu.lst file int /boot/grub
To do this you will of course need to boot up and get into your file
filesystem. Edit the menu.lst file and look for:
kernel /boot/vmlinuz-2.6.18-3-amd64 root=/dev/sda1 ro
or equivalent in your file. Change the /dev/sda1 to /dev/sdb1
2. Take advantage of the udevs more permanent names in the
/dev/disk/by-uuid directory and use the names found there instead of
/dev/sdb1.
You still need to edit the menu.lst file. However, by taking advantage of
udev you can remove any possibility for problems should you change your
system by adding/removing a drive. Run the command:
ls -l /dev/disk/by-uuid
to get a list of which name you will need to use in the kernel line. Look
for the entry that links to sdb1.
3. Again taking advantage of udev you may rename your devices.
This is more complex and I don't have enough experience doing it. I do
understand however, that it is possible. Perhaps someone else in the list
can offer advice on how to do this.
Finally, it is possible to interrupt the grub bootloader and specify which
drive to boot from at a grub command line. I did this when originally
installing etch on my system. Unfortunately I don't remember the exact
commands so you'll have to google it to find out.
Thanks
Jay
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