Re: Boot problems after adding 2 new disks

Tue, 19 Feb 2019 19:02:44 -0800


On 16/2/19 4:08 pm, Craig Sanders via luv-main wrote:
On Sat, Feb 16, 2019 at 03:00:08PM +1100, Morrie Wyatt wrote:

The one extra step you might need to add to the end of Craig's list would be
to force a rebuild of your bootloader configuration (probably Grub) so that
the fstab UUID / LABEL changes get propagated into grub's config files.

It certainly can't hurt to do that but it shouldn't be necessary.  Grub uses
UUIDs by default unless you tell it not to. There's a commented out option in
/etc/default/grub on debian/ubuntu systems to disable use grub's of UUID:

    # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
    #GRUB_DISABLE_LINUX_UUID=true

There's almost no reason why anyone would need to uncomment that.



It might, however, be worthwhile running 'grub-install' on ALL of the drives
*after* the system has successfully booted with the new drives installed.
That way the grub first stage boot loader will be available no matter which
drive the BIOS tries to boot from (this is assuming that it's an old-style
BIOS boot, rather than UEFI. UEFI is different, it loads grub directly from a
smallish FAT-32 EFI partition).

craig

--
craig sanders <[email protected]>
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Hi All.

I fired up gparted

sda1 is found and has very little space left

sdb1 has been found and automatically configured thus:

Partition /dev/sdb1 (key symbol)

Filesystem  lvm2 pv

Mount point Ubuntu-vg

Size 1.82TiB  Used 1.82TiB   Unused 376.00MiB  Flags lvm

The second drive shows as /dev/sdc

Partition unallocated

File system unallocated

size 1.82TiB

Used -          Unused -         Flags (empty)

so I am at a loss where to go now. I am contemplating backing up my only drive, and then plugging in the two new drives and running a server install in Ubuntu, letting it pick them up in the process.

Thanks

Andrew 

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