Arch Linux

spacelander

Member

Registered: 2015-07-29

Posts: 16

Linux-grsec not found

I've recently decided to install the Grsec patched kernel along with the mainline one, but when I try to boot into the grsec kernel, the bootloader (systemd-bootctl aka gummiboot) says:

 \vmlinuz-linux-grsec not found 

and doesn't boot. The mainline kernel, however, works perfectly…
This is my /boot/loader/entries/arch-grsec.conf

title   Arch Linux-Grsec
linux   /vmlinuz-linux-grsec
initrd  /initramfs-linux-grsec.img
options root=/dev/sda2 rw quiet 

Both vmlinuz-linux and vmlinuz-linux-grsec, as well as the initramfs' are in the /boot directory.

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 13,570

Website

Re: Linux-grsec not found

Just to make sure, is the /boot directory also your ESP, or do you mount the ESP to somewhere like /boot/EFI?

---

Sakura:-
Mobo: MSI MAG X570S TORPEDO MAX // Processor: AMD Ryzen 9 5950X @4.9GHz // GFX: AMD Radeon RX 5700 XT // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 6x 1TB SSD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

spacelander

Member

Registered: 2015-07-29

Posts: 16

Re: Linux-grsec not found

Yes, it is my $ESP. As I said, the configuration for both kernels is identical. This would be my "working" kernel:
/boot/loader/entries/arch.conf

title   Arch Linux
linux   /vmlinuz-linux
initrd  /initramfs-linux.img
options root=/dev/sda2 rw quiet rcutree.rcu_idle_gp_delay=1

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,729

Re: Linux-grsec not found

What is the output of `mount`?

spacelander

Member

Registered: 2015-07-29

Posts: 16

Re: Linux-grsec not found

proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
dev on /dev type devtmpfs (rw,nosuid,relatime,size=3983952k,nr_inodes=995988,mode=755)
run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
/dev/sda2 on / type btrfs (rw,noatime,ssd,discard,space_cache,subvolid=5,subvol=/)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
/dev/sda4 on /home/spacelander/virtual_disks type ext4 (rw,nosuid,nodev,noexec,noatime,discard,data=ordered)
/dev/sda1 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro,discard)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=797416k,mode=700,uid=1000,gid=1000)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)

I have the root folder on a btrfs partition, if that is why you're asking.

Last edited by spacelander (2015-11-10 22:43:53)

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,729

Re: Linux-grsec not found

I was actually wondering about a number of things. Double mounts, mount options, etc. Everything looks good, though.

Anything interesting in `ls -la /boot`? I remember one case of something like this that involved truncated 8.3 filenames. Something strange the firmware was doing.

spacelander

Member

Registered: 2015-07-29

Posts: 16

Re: Linux-grsec not found

Oh, I didn't give to much thought to the FAT file system limitations… This is the output of `ls -lash /boot`

1,0K drwxr-xr-x 5 root root 1,0K ian  1  1970 .
 16K drwxr-xr-x 1 root root  154 oct  6 00:59 ..
 512 drwxr-xr-x 6 root root  512 iul 15 12:34 EFI
 19M -rwxr-xr-x 1 root root  19M nov  4 01:42 initramfs-linux-fallback.img
 18M -rwxr-xr-x 1 root root  18M nov 10 14:58 initramfs-linux-grsec-fallback.img
4,1M -rwxr-xr-x 1 root root 4,1M nov 10 14:58 initramfs-linux-grsec.img
4,2M -rwxr-xr-x 1 root root 4,2M nov  4 01:42 initramfs-linux.img
 512 drwxr-xr-x 3 root root  512 iul 15 12:40 loader
 512 drwxr-xr-x 2 root root  512 mar 26  2015 syslinux
4,1M -rwxr-xr-x 1 root root 4,1M oct 27 08:14 vmlinuz-linux
4,0M -rwxr-xr-x 1 root root 4,0M nov 10 07:07 vmlinuz-linux-grsec

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: Linux-grsec not found

Please post the output of:

# bootctl

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Jin, Jîyan, Azadî

spacelander

Member

Registered: 2015-07-29

Posts: 16

Re: Linux-grsec not found

output of `bootctl`

System:
     Firmware: UEFI 2.00 (American Megatrends 4.635)
  Secure Boot: disabled
   Setup Mode: user

Loader:
      Product: systemd-boot 227
    Partition: /dev/disk/by-partuuid/dd18e251-d1d8-4969-bacf-38305322384b
         File: └─/EFI/systemd/systemd-bootx64.efi

Boot Loader Binaries:
          ESP: /dev/disk/by-partuuid/dd18e251-d1d8-4969-bacf-38305322384b
         File: └─/EFI/systemd/systemd-bootx64.efi (systemd-boot 227)
         File: └─/EFI/Boot/bootx64.efi (systemd-boot 227)

Boot Loader Entries in EFI Variables:
        Title: Linux Boot Manager
           ID: 0x0002
       Status: active, boot-order
    Partition: /dev/disk/by-partuuid/dd18e251-d1d8-4969-bacf-38305322384b
         File: └─/EFI/systemd/systemd-bootx64.efi

        Title: opensuse-secureboot
           ID: 0x0000
       Status: active, boot-order
    Partition: /dev/disk/by-partuuid/dd18e251-d1d8-4969-bacf-38305322384b
         File: └─/EFI/opensuse/shim.efi

        Title: shell
           ID: 0x0004
       Status: active, boot-order
    Partition: /dev/disk/by-partuuid/dd18e251-d1d8-4969-bacf-38305322384b
         File: └─/EFI/shellx64.efi

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: Linux-grsec not found

Will a custom NVRAM entry boot?

# efibootmgr -d /dev/sda -p 1 -c -L "Arch grsec" -l /vmlinuz-linux-grsec -u "root=/dev/sda2 rw quiet initrd=/initramfs-linux-grsec.img"

The entry will be called "Arch grsec"

---

Jin, Jîyan, Azadî

spacelander

Member

Registered: 2015-07-29

Posts: 16

Re: Linux-grsec not found

I've added the entry and it doesn't boot. However, I've managed to boot the kernel from the GRUB command line. I don't currently use grub, but I still have it on the ESP from a previous installation of openSUSE. Though it boots up, it can't mount the root partition.
http://imgur.com/4JakNVY

Last edited by spacelander (2015-11-11 12:28:01)

spacelander

Member

Registered: 2015-07-29

Posts: 16

Re: Linux-grsec not found

I figured it out. It was because the file name vmlinuz-linux-grsec was apparently too long for the FS. Copying the kernel to another file with a shorter name solved the problem. Can anybody tell me how to change the config to always save the kernel with the shorter name when I update?