diff options
| author | Xi Ruoyao <xry111@mengyan1223.wang> | 2022-02-05 11:36:39 +0800 |
|---|---|---|
| committer | Xi Ruoyao <xry111@mengyan1223.wang> | 2022-02-05 20:48:27 +0800 |
| commit | 490dc15317e18e4f87d2a2555adc6ce2c2a774ba (patch) | |
| tree | cdd4f927f4ca62b6cbd3ddc26260015232ba0aaf /chapter08 | |
| parent | 69c4524b6df4f5ac7b87e868afe55569b61752a8 (diff) | |
remove "+h" in bash commands in chroot (#4998)
In the new cross-compilation approach, the $PATH in chroot does not
contain '/tools/bin'. So "+h" is useless in chroot as the newly
installed tools always replace the temporary counterpart at the same
location.
"+h" in chapter4/settingenviron.xml is kept deliberately. Currently
$LFS/tools/bin only contains programs prefixed with
"x86_64-lfs-linux-gnu-", and it's highly unlikely that any distro will
ever ship a program named with such prefix. So it may seems that we can
remove this "+h" as well. However, the situation may change in future
and we can take this oppertunity to teach the advantage and disvantage
of bash hash feature.
Diffstat (limited to 'chapter08')
| -rw-r--r-- | chapter08/bash.xml | 8 | ||||
| -rw-r--r-- | chapter08/revisedchroot.xml | 22 |
2 files changed, 1 insertions, 29 deletions
diff --git a/chapter08/bash.xml b/chapter08/bash.xml index 36bbcf0d9..787882b59 100644 --- a/chapter08/bash.xml +++ b/chapter08/bash.xml @@ -94,13 +94,7 @@ EOF</userinput></screen> <para>Run the newly compiled <command>bash</command> program (replacing the one that is currently being executed):</para> - <screen role="nodump"><userinput>exec /usr/bin/bash --login +h</userinput></screen> - - <note> - <para>The parameters used make the <command>bash</command> - process an interactive login shell and continues to disable hashing so - that new programs are found as they become available.</para> - </note> + <screen role="nodump"><userinput>exec /usr/bin/bash --login</userinput></screen> </sect2> diff --git a/chapter08/revisedchroot.xml b/chapter08/revisedchroot.xml index bc519d491..52c74a381 100644 --- a/chapter08/revisedchroot.xml +++ b/chapter08/revisedchroot.xml @@ -14,28 +14,6 @@ <screen><userinput>rm -rf /tmp/*</userinput></screen> - <para>Now log out and reenter the chroot environment with an updated - chroot command. From now on, use this updated chroot command any time - you need to reenter the chroot environment after exiting:</para> - -<screen role="nodump"><userinput>logout - -chroot "$LFS" /usr/bin/env -i \ - HOME=/root TERM="$TERM" \ - PS1='(lfs chroot) \u:\w\$ ' \ - PATH=/usr/bin:/usr/sbin \ - /usr/bin/bash --login</userinput></screen> - - <para>Here the <parameter>+h</parameter> option is not used anymore, since - all the previous programs have been replaced: hashing is therefore - possible.</para> - - <para>If the virtual kernel file systems have been unmounted, either manually - or through a reboot, ensure that the virtual kernel file systems are mounted - when reentering the chroot. This process was explained in <xref - linkend="ch-tools-bindmount"/> and <xref - linkend="ch-tools-kernfsmount"/>.</para> - <para>There are also several files installed in the /usr/lib and /usr/libexec directories with a file name extension of .la. These are "libtool archive" files. As already said, they are only useful when linking with static |