diff options
| author | Bruce Dubbs <bdubbs@linuxfromscratch.org> | 2022-09-20 12:20:58 -0500 |
|---|---|---|
| committer | Bruce Dubbs <bdubbs@linuxfromscratch.org> | 2022-09-20 12:20:58 -0500 |
| commit | 16cd09633edb80d587548ce3cd2296b4b803f210 (patch) | |
| tree | a6a1c8b087bde5baeee7ad1ff0157d46697cde7d /chapter07 | |
| parent | cc8e57dc7ad8dd6acc35b050fbd2a92c352bb9e8 (diff) | |
Adjust instructions for /dev/shm when creating virtual filesystems.
Some host create /dev/shm as a tmpfs. Some have is as
a symlink to a location in another directory. This
change handles both cases.
The change to the sysV bootscripts now creates /dev/shm
as a separate tmpfs from /run. This makes LFS sysV and
systemd versions treat /dev/shm the same.
Diffstat (limited to 'chapter07')
| -rw-r--r-- | chapter07/cleanup.xml | 3 | ||||
| -rw-r--r-- | chapter07/kernfs.xml | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/chapter07/cleanup.xml b/chapter07/cleanup.xml index 7946d84eb..d5396208c 100644 --- a/chapter07/cleanup.xml +++ b/chapter07/cleanup.xml @@ -95,7 +95,8 @@ <para>Before making a backup, unmount the virtual file systems:</para> -<screen role="nodump"><userinput>umount $LFS/dev/pts +<screen role="nodump"><userinput>[ mountpoint -q $LFS/dev/shm ] && umount $LFS/dev/shm +umount $LFS/dev/pts umount $LFS/{sys,proc,run,dev}</userinput></screen> <para> diff --git a/chapter07/kernfs.xml b/chapter07/kernfs.xml index 64db54c24..c9721113d 100644 --- a/chapter07/kernfs.xml +++ b/chapter07/kernfs.xml @@ -89,8 +89,15 @@ mount -vt tmpfs tmpfs $LFS/run</userinput></screen> The /run tmpfs was mounted above so in this case only a directory needs to be created.</para> + <para>In other cases <filename>/dev/shm</filename> is a mountpoint + for a tmpfs. In that case the mount of /dev above will only create + /dev/shm in the chroot environment as a directory. In this situation + we explicitly mount a tmpfs,</para> + <screen><userinput>if [ -h $LFS/dev/shm ]; then mkdir -pv $LFS/$(readlink $LFS/dev/shm) +else + mount -t tmpfs -o nosuid,nodev tmpfs $LFS/dev/shm fi</userinput></screen> </sect2> |