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Overlay, btrfs support not showing.
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zzart
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Joined: 11 Mar 2011
Posts: 4

PostPosted: Wed Nov 08, 2017 9:33 am    Post subject: Overlay, btrfs support not showing. Reply with quote

I've compiled latest kernel with CONFIG_OVERLAY_FS=y, despite this overlay doesn't show in /proc/filesystems

Code:
cat /proc/filesystems
nodev   sysfs
nodev   rootfs
nodev   ramfs
nodev   bdev
nodev   proc
nodev   cpuset
nodev   cgroup
nodev   cgroup2
nodev   tmpfs
nodev   devtmpfs
nodev   binfmt_misc
nodev   debugfs
nodev   tracefs
nodev   sockfs
nodev   dax
nodev   pipefs
nodev   hugetlbfs
nodev   rpc_pipefs
nodev   devpts
        ext3
        ext4
        ext2
        vfat
        msdos
nodev   nfs
nodev   nfs4
nodev   autofs
nodev   mqueue
nodev   selinuxfs


Code:

uname -a
Linux cash 4.12.12-gentoo #1 SMP Mon Nov 6 18:00:52 CET 2017 x86_64 Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz GenuineIntel GNU/Linux

Code:

cat /boot/config-4.12.12-gentoo | grep OVERLAY
CONFIG_OVERLAY_FS=y
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set


I have the same problem with BTRFS :
Code:

cat /boot/config-4.12.12-gentoo | grep BTRFS
CONFIG_BTRFS_FS=y
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set

and output of cat /proc/filesystems as above.

What's wrong with me, Am I missing something obvious :) ?
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 39067
Location: 56N 3W

PostPosted: Wed Nov 08, 2017 10:16 am    Post subject: Reply with quote

zzart,

Code:
Mon Nov 6 18:00:52 CET 2017
is the build time of your running kernel.
Have you made a more recent one that you are not using?

Maybe omitted to mount /boot for the install?
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
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zzart
n00b
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Joined: 11 Mar 2011
Posts: 4

PostPosted: Wed Nov 08, 2017 10:37 am    Post subject: Reply with quote

@NeddySeagoon spot on! My /boot was not mounting and
Quote:
make install
just created new /boot directory. Thanks for help.
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