[SOLVED] Kernel upgrade gets No space left on device


Sep 12, 2020
Gold Coast, Australia
Proxmox 8.0.4. I have a 4 node cluster and all of them upgraded successfully except this one with the error below. /var/tmp/espmounts/67D6-E50C/ does exist but not EFI. Any suggestion how to find out why there is no space left and how to fix it?

run-parts: executing /etc/kernel/postrm.d/initramfs-tools 5.15.108-1-pve /boot/vmlinuz-5.15.108-1-pve
update-initramfs: Deleting /boot/initrd.img-5.15.108-1-pve
run-parts: executing /etc/kernel/postrm.d/proxmox-auto-removal 5.15.108-1-pve /boot/vmlinuz-5.15.108-1-pve
run-parts: executing /etc/kernel/postrm.d/zz-proxmox-boot 5.15.108-1-pve /boot/vmlinuz-5.15.108-1-pve
Re-executing '/etc/kernel/postrm.d/zz-proxmox-boot' in new private mount namespace..
Copying and configuring kernels on /dev/disk/by-uuid/67D6-E50C
Copying kernel and creating boot-entry for 6.2.16-6-pve
Copying kernel and creating boot-entry for 6.2.16-8-pve

cp: error writing '/var/tmp/espmounts/67D6-E50C/EFI/proxmox/6.2.16-8-pve/initrd.img-6.2.16-8-pve': No space left on device

run-parts: /etc/kernel/postrm.d/zz-proxmox-boot exited with return code 1
Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/pve-kernel-5.15.108-1-pve.postrm line 14.
dpkg: error processing package pve-kernel-5.15.108-1-pve (--remove):
installed pve-kernel-5.15.108-1-pve package post-removal script subprocess returned error exit status 1
dpkg: too many errors, stopping
Errors were encountered while processing:
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)
/var/tmp has minimal content...

~ du -sh /var/tmp
183K    /var/tmp

I can even copy a 655 MB file into that area, larger than any kernel package...

~ ll -h /var/tmp/espmounts/67D6-E50C
total 653M
-rw-r--r-- 1 root root 655M Sep  1 22:57 jammy-server-cloudimg-amd64.img

> of course u can increase the root partition/volume

That I do not know how to do. Any hints?

~ df
Filesystem                                                Type      Size  Used Avail Use% Mounted on
udev                                                      devtmpfs   32G     0   32G   0% /dev
tmpfs                                                     tmpfs     6.3G  1.8M  6.3G   1% /run
rpool/ROOT/pve-1                                          zfs       1.7T  150G  1.5T   9% /
tmpfs                                                     tmpfs      32G   66M   32G   1% /dev/shm
tmpfs                                                     tmpfs     5.0M   16K  5.0M   1% /run/lock
rpool                                                     zfs       1.5T  128K  1.5T   1% /rpool
rpool/ROOT                                                zfs       1.5T  128K  1.5T   1% /rpool/ROOT
rpool/data                                                zfs       1.5T  128K  1.5T   1% /rpool/data
/dev/fuse                                                 fuse      128M   88K  128M   1% /etc/pve
tmpfs                                                     tmpfs     6.3G   56K  6.3G   1% /run/user/1001
tmpfs                                                     tmpfs      32G   28K   32G   1% /var/lib/ceph/osd/ceph-2
tmpfs                                                     tmpfs      32G   28K   32G   1% /var/lib/ceph/osd/ceph-5,,, ceph      4.5T  142G  4.4T   4% /mnt/pve/ceph-fs
tmpfs                                                     tmpfs     6.3G   32K  6.3G   1% /run/user/0
Thank you Neobin, this was the procedure I used...

cat /etc/kernel/proxmox-boot-uuids
ls -al /dev/disk/by-uuid/67D6-E50C
lrwxrwxrwx 1 root root 15 Sep  1 20:06 /dev/disk/by-uuid/67D6-E50C -> ../../nvme0n1p2
mkdir /tmp/myesp
mount /dev/nvme0n1p2 /tmp/myesp
ll /tmp/myesp/*/*
rm -rf /tmp/myesp/*/*/5.15.108-1-pve
rm -rf /tmp/myesp/*/*/6.2.16-5-pve
umount /tmp/myesp
apt-get -f install


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