> As Lennart points out, /boot can't be an LVM,
Hm. I have plenty of computers where the disks have one RAID partition,
and the RAID volume has only LVM on it, with either a separate LV=boot
or just booting from LV=/ This has worked since at least GRUB2 came out.
I also have a single-disk (no RAID) computer where one of the partitions
is LVM booting straight from the LVM with LILO. Another partition is
WinXP. Yes, this is an old system, but shows that booting from an LV
without a separate /boot partition has been possible for a long time.
The only time I've found it necessary to have a separate /boot partition
is when the rest of the drive is encrypted. There needs to be some
unencrypted software to decrypt the drive, available in initramfs in the
unencrypted /boot partition.
But to address William's problem of an overfull /boot partition: I have
sometimes rescued a system by just deleting the oldest kernel images to
free up space in boot (or / ) with a rescue CD or USB stick, allowing
the system to boot again to fix up the slightly broken repository
(usually by re-installing the most recent kernel update that overflowed
/boot in the first place).
--Bob.
On 2021-10-12 11:39, William Witteman via talk wrote:
Thanks to everyone who responded!
As Lennart points out, /boot can't be an LVM, and the whole rest of the
disk was an LVM partition. Those get bigger easily, but not smaller.
It was easiest for me to copy my /home onto a backup drive and reinstall
Debian. My experiment with LVM and "automatic" partitions was a failure -
my workflow is better suited to a / and a /home.
Thanks again!
On Tue., Oct. 12, 2021, 10:57 Lennart Sorensen, <
[email protected]> wrote:
On Thu, Oct 07, 2021 at 10:45:57PM -0400, William Witteman via talk wrote:
When I installed Debian on my current computer, I (foolishly) let the
install script partition my disk. Now I have a /boot partition that is
too
small.
The system is using lvm, and I have enough free space on /home that I can
reduce the size of /home by a couple of Gb, and then in theory allocate
that to my ridiculously undersized /boot partition.
Back in the old days I knew how to do this, but with lvm I don't know
how,
and of the (many) questions and answers that I have found I haven't seen
one that inspires confidence.
So...
1) Do I need to make a boot drive?
2) Does anyone know a nice set of instructions?
Well you may in fact need a boot drive since you are using LVM for / and
something has to boot the system to a ramdisk to start lvm to mount root.
gparted livecd can definitely expand LVM PV, but not sure about shrinking
them.
What is the current partition table?
--
Len Sorensen
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