Date: Mon, 20 Jun 2022 11:35:01 -0700 From: David Christensen <dpchrist@holgerdanske.com> To: freebsd-questions@freebsd.org Subject: BIOS/MBR drive enumeration order, FreeBSD dev nodes, GELI ZFS root, and ZFS boot Message-ID: <ebcf14da-016f-3906-34be-2a24a1b71aa5@holgerdanske.com>
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freebsd-questions:
I have a desktop computer:
Intel DQ67SW motherboard
Intel Core i7-2600S processor
Corsair CMV8GX3M2A1333C9 2 @ 4 GB memory module kit
Intel 520 Series SSD 60 GB
EFI is disabled in CMOS Setup.
FreeBSD was installed onto the SSD with a USB flash drive containing:
FreeBSD-12.3-RELEASE-amd64-memstick.img
As follows:
FreeBSD - Welcome to FreeBSD Boot Multi user
FreeBSD Installer - Welcome Install
Keymap Selection Continue with default keymap
Set Hostname f4.tracy.holgerdanske.com
Distribution Selection <unselect all options>
Partitioning Auto (ZFS)
Pool Type/Disks stripe: 1 disk
ada0 INTEL SSDSC2CW060A3
Pool Name f4_zroot
Force 4K Sectors YES
Encrypt Disks YES
Partition Scheme MBR (BIOS)
Swap Size 2g
Mirror Swap YES
Encrypt Swap YES
>>> Install Proceed with installation
ZFS Configuration
Last Chance! YES
Enter a strong passphrase ********
Re-enter password ********
Root - New Password ********
Retype New Password ********
Network Configuration em0
Configure IPv4 Yes
Use DHCP Yes
Configure IPv6 No
Search tracy.holgerdanske.com
IPv4 DNS #1 192.168.5.1
IPv4 DNS #2 208.67.222.222
CMOS clock set to UTC Yes
Time Zone
Region America -- North and South
Country or region United States of America
Zone Pacific
Time & Date - month, year, day <verify>
Time & Data - time <verify>
Services to start at boot sshd, ntpdate, ntpd, powerd
System hardening options <none>
Add users No
Final configuration Exit
Open shell No
Complete Reboot
On May 29, 2022, I upgraded to:
2022-06-20 10:48:55 toor@f4 ~
# freebsd-version ; uname -a
12.3-RELEASE-p5
FreeBSD f4.tracy.holgerdanske.com 12.3-RELEASE-p5 FreeBSD
12.3-RELEASE-p5 GENERIC amd64
When I boot the machine, I see a prompt:
GELI Passphrase:
If I enter the correct passphrase, boot succeeds.
If I enter an incorrect passphrase, I see another prompt later in boot:
Enter passphrase for ada0s1d:
Note that "ada0" corresponds to the device node name of the SSD when
FreeBSD was installed.
If I enter the correct passphrase, boot continues and succeeds.
I would now like to use the computer to examine an EIDE HDD.
I have installed a HBA:
Promise Technology Ultra 133 TX2
Connected the HDD to the HBA:
Maxtor 6L200P0
And set the CMOS Setup boot order so that the SSD is before the HDD.
When I boot the machine I see the first prompt:
GELI Passphrase:
No matter what passphrase I enter, I always see the second prompt:
Enter passphrase for ada1s1d:
Note that "ada1" no longer corresponds to the device node name of the
SSD when FreeBSD was installed. (I suspect the HDD is "ada0".)
No matter what passphrase I enter at the second prompt, it is always
rejected. FreeBSD will not boot.
It appears that GELI and/or ZFS for the root partition is tied to the
FreeBSD device node name "ada0s1d" (?), which is tied to the BIOS drive
numbering. When I insert the HBA, the BIOS drive numbering changes, the
root partition device node changes to "ada1s1d", GELI and/or ZFS breaks,
and boot fails (?).
CMOS Setup does not appear to provide a mechanism for influencing BIOS
drive enumeration order.
The HBA does not appear to have a POST hotkey/ setup program.
I recall encountering this device node name issue when cloning FreeBSD
installations between SSD's (device node names "adaN") and USB flash
drives (device node names "daN"), and that the work-around was to boot
FreeBSD installation media into a rescue shell, mount the boot
filesystem, and delete zfs/zpool.cache (?).
I would prefer a work-around that involves entering configuration
settings during FreeBSD boot.
Please advise.
TIA,
David
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