EFI partition sync setup fails

GabrieleV

Renowned Member
May 20, 2013
52
6
73
I have a machine that boots via UEFI.
Currently filesystems are mounted as is:
Code:
Filesystem                      Size  Used Avail Use% Mounted on
/dev/mapper/sys-root             15G  4.3G  9.6G  31% /
/dev/md0                        920M  275M  582M  33% /boot
/dev/sdb1                       511M   12M  500M   3% /boot/efi

Root is on LVM over MD.

If I try to setup esp sync:

Code:
# proxmox-boot-tool format /dev/sda1
UUID="" SIZE="536870912" FSTYPE="" PARTTYPE="c12a7328-f81f-11d2-ba4b-00a0c93ec93b" PKNAME="sda" MOUNTPOINT=""
Formatting '/dev/sda1' as vfat..
mkfs.fat 4.2 (2021-01-31)
Done.

I got the following error:

Code:
# proxmox-boot-tool init /dev/sda1
Re-executing '/usr/sbin/proxmox-boot-tool' in new private mount namespace..
UUID="E7D9-2C88" SIZE="536870912" FSTYPE="vfat" PARTTYPE="c12a7328-f81f-11d2-ba4b-00a0c93ec93b" PKNAME="sda" MOUNTPOINT=""
Mounting '/dev/sda1' on '/var/tmp/espmounts/E7D9-2C88'.
Installing systemd-boot..
Failed to probe partition scheme of "/dev/block/9:0": Input/output error

It tries to get partitions from the MD /boot array :
Code:
# ls /dev/block/9:0
lrwxrwxrwx 1 root root 6 Dec 13 15:52 /dev/block/9:0 -> ../md0

How con I setup ESP sync ?

Thank you,
GV
 
Hi,
please post the output of lsblk -o +FSTYPE
 
Here it is:
x
Code:
#  lsblk -o +FSTYPE
NAME           MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT FSTYPE
sda              8:0    1 114.6G  0 disk             
├─sda1           8:1    1   512M  0 part             vfat
├─sda2           8:2    1   954M  0 part             linux_raid_member
│ └─md0          9:0    0   953M  0 raid1 /boot      ext4
└─sda3           8:3    1  28.5G  0 part             linux_raid_member
  └─md1          9:1    0  28.5G  0 raid1            LVM2_member
    └─sys-root 253:0    0  14.9G  0 lvm   /          ext4
sdb              8:16   1  29.9G  0 disk             
├─sdb1           8:17   1   512M  0 part  /boot/efi  vfat
├─sdb2           8:18   1   954M  0 part             linux_raid_member
│ └─md0          9:0    0   953M  0 raid1 /boot      ext4
└─sdb3           8:19   1  28.5G  0 part             linux_raid_member
  └─md1          9:1    0  28.5G  0 raid1            LVM2_member
    └─sys-root 253:0    0  14.9G  0 lvm   /          ext4
zram0          252:0    0     1G  0 disk  /var/log
 
Could you try to unmount /boot for the time being and try to execute the command again. Seems like systemd-boot is scanning the /boot mountpoint.

It worked:

Code:
# umount /boot/efi
Code:
# umount /boot

Original EFI partition was /dev/sdb1, I want to sync the empty one on /dev/sda1:

Code:
proxmox-boot-tool init /dev/sda1

Code:
Re-executing '/usr/sbin/proxmox-boot-tool' in new private mount namespace..
UUID="E7D9-2C88" SIZE="536870912" FSTYPE="vfat" PARTTYPE="c12a7328-f81f-11d2-ba4b-00a0c93ec93b" PKNAME="sda" MOUNTPOINT=""
Mounting '/dev/sda1' on '/var/tmp/espmounts/E7D9-2C88'.
Installing systemd-boot..
Created "/var/tmp/espmounts/E7D9-2C88/EFI/systemd".
Created "/var/tmp/espmounts/E7D9-2C88/EFI/BOOT".
Created "/var/tmp/espmounts/E7D9-2C88/loader".
Created "/var/tmp/espmounts/E7D9-2C88/loader/entries".
Created "/var/tmp/espmounts/E7D9-2C88/EFI/Linux".
Copied "/usr/lib/systemd/boot/efi/systemd-bootx64.efi" to "/var/tmp/espmounts/E7D9-2C88/EFI/systemd/systemd-bootx64.efi".
Copied "/usr/lib/systemd/boot/efi/systemd-bootx64.efi" to "/var/tmp/espmounts/E7D9-2C88/EFI/BOOT/BOOTX64.EFI".
Random seed file /var/tmp/espmounts/E7D9-2C88/loader/random-seed successfully written (512 bytes).
Successfully initialized system token in EFI variable with 512 bytes.
Created EFI boot entry "Linux Boot Manager".
Configuring systemd-boot..
Unmounting '/dev/sda1'.
Adding '/dev/sda1' to list of synced ESPs..
Refreshing kernels and initrds..
Running hook script 'proxmox-auto-removal'..
Running hook script 'zz-proxmox-boot'..
No /etc/kernel/cmdline found - falling back to /proc/cmdline
Copying and configuring kernels on /dev/disk/by-uuid/E7D9-2C88
No linux-image /boot/vmlinuz-5.15.83-1-pve found - skipping
No linux-image /boot/vmlinuz-5.19.17-1-pve found - skipping
        /var/tmp/espmounts/E7D9-2C88/EFI/proxmox/* is not a directory - skipping

Code:
# mount -a

It seems to work now:

Code:
# update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-5.19.17-1-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/cmdline found - falling back to /proc/cmdline
Copying and configuring kernels on /dev/disk/by-uuid/E7D9-2C88
        Copying kernel and creating boot-entry for 5.15.74-1-pve
        Copying kernel and creating boot-entry for 5.15.83-1-pve
        Copying kernel and creating boot-entry for 5.19.17-1-pve

Do you agree ?
 
Whats the output of:
Code:
proxmox-boot-tool status
proxmox-boot-tool kernel list
 
Whats the output of:
Code:
proxmox-boot-tool status
proxmox-boot-tool kernel list
Here they are:

Code:
# proxmox-boot-tool status

Code:
Re-executing '/usr/sbin/proxmox-boot-tool' in new private mount namespace..
System currently booted with uefi
E7D9-2C88 is configured with: uefi (versions: 5.15.74-1-pve, 5.15.83-1-pve, 5.19.17-1-pve)

Code:
# proxmox-boot-tool kernel list
Code:
Manually selected kernels:
None.

Automatically selected kernels:
5.15.83-1-pve
5.19.17-1-pve
 
Root is on LVM over MD.
proxmox-boot-tool was never developed with mdraid in mind - as a) mdraid is not really supported by PVE, and b) usually mdraid setups keep their /boot in sync, by mdraid.
additionally it was initially implemented to work around the ZFS limitations in grub as a boot-loader.

Why would you like to use proxmox-boot-tool on this setup?
(Asking primarily because it seems it does not add any functionality here, but I would not want to miss a potential improvement)
 
Why would you like to use proxmox-boot-tool on this setup?
(Asking primarily because it seems it does not add any functionality here, but I would not want to miss a potential improvement)
Hy,
yes /boot is redundant because it's on MD raid.
But /boot/efi cannot be on MD Raid. It must be on a plain vanilla vfat partition. I tried to put on MD raid, but boot fails.
So to sync /boot/efi the only way seems to be proxmox-boot-tool.
Am I wrong ?
 
So to sync /boot/efi the only way seems to be proxmox-boot-tool.
Am I wrong ?
right - I forgot about the ESP - however usually with grub the esp (/boot/efi) only contains the efi files from grub - so while it's a good idea to install grub to all of the 2 disks in the mdraid - and to upgrade the installation when there's a grub update - this does not happen too often (and as far as I can remember - the grub-postinstall asks you where you want to install it and usually does the right thing)
 
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