Public bug reported:
Installations of Ubuntu on machines with more than 16 disks are
currently not (fully) supported. If the boot device is not within the
first 16 scsi block devices (/dev/sd[a-p]), the installation of boot
loaders grub/grub2 and lilo fails.
<cjwatson> that sounds /* The rest is SCSI disks. */
<cjwatson> for (i = 0; i < 16; i++)
<cjwatson> wow, lilo has the exact same limitation, 16 disks
Log excerpt from a grub installation attempt with boot drives /dev/sdy
and /dev/sdac:
Feb 26 21:30:44 grub-installer: Probing devices to guess BIOS drives. This may
take a long time.
Feb 26 21:30:45 grub-installer: /dev/sdy1 does not have any corresponding BIOS
drive.
Feb 26 21:30:45 grub-installer: error: Running 'grub-install --no-floppy
"(hd0)"' failed.
Feb 26 21:30:45 debconf: --> SUBST grub-installer/grub-install-failed BOOTDEV
(hd0)
** Affects: grub (Ubuntu)
Importance: Undecided
Status: New
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Affects: lilo (Ubuntu)
Importance: Undecided
Status: New
** Also affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: lilo (Ubuntu)
Importance: Undecided
Status: New
--
Machines with > 16 drives not supported
https://bugs.launchpad.net/bugs/335174
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