> From: Michael Havens <[email protected]>
> Date: Sun, 3 Aug 2014 00:06:41 -0700
> To: LFS Support List <[email protected]>
> Subject: Re: [lfs-support] Please, teach me how to fix problems.
>
>
> On Sat, Aug 2, 2014 at 2:27 PM, Michael Havens <[email protected]> wrote:
>
> > It was mentioned that I might want to restart at the beginning of chapter
> > 6. Please, what do I need to rm -rf to do that?
> >
>
>
> sorry about the delay in my response. I had to go to work. Is this where
> you wanted me to post my answer? I'll have all day to play with this on
It's re please don't top-post.
> Sunday.
>
> root:/home/lfs# ls -laF /mnt/lfs/
> total 128
> drwxr-xr-x 23 root root 4096 Aug 2 02:37 ./
> drwxr-xr-x 3 root root 4096 Jul 26 00:47 ../
> -rw-r--r-- 1 root root 61 Aug 2 02:35 6.9glibc.compile.log
> drwxr-xr-x 2 root root 4096 Jul 29 17:26 bin/
> drwxr-xr-x 2 root root 4096 Jul 29 17:16 boot/
> drwxr-xr-x 14 root root 3340 Jul 27 00:16 dev/
> drwxr-xr-x 4 root root 4096 Jul 29 17:29 etc/
> drwxr-xr-x 2 root root 4096 Jul 29 17:16 home/
> drwxr-xr-x 2 root root 4096 Jul 29 17:24 lib/
> lrwxrwxrwx 1 root root 3 Jul 29 17:18 lib64 -> lib/
> drwx------ 2 root root 16384 Jul 27 14:28 lost+found/
> drwxr-xr-x 4 root root 4096 Jul 29 17:16 media/
> drwxr-xr-x 2 root root 4096 Jul 29 17:16 mnt/
> drwxr-xr-x 2 root root 4096 Jul 29 17:16 opt/
> drwxr-xr-x 2 root root 4096 Jul 29 16:33 proc/
> drwxr-x--- 2 root root 4096 Jul 29 17:31 root/
> drwxr-xr-x 3 root root 4096 Jul 29 17:18 run/
> drwxr-xr-x 2 root root 4096 Jul 29 17:16 sbin/
> drwxrwxrwt 4 lfs root 12288 Aug 2 02:38 sources/
> drwxr-xr-x 2 root root 4096 Jul 29 17:16 srv/
> drwxr-xr-x 2 root root 4096 Jul 29 16:33 sys/
> drwxrwxrwt 2 root root 20480 Aug 2 03:50 tmp/
> drwxr-xr-x 12 root root 4096 Jul 28 14:06 tools/
> drwxr-xr-x 10 root root 4096 Jul 29 17:18 usr/
> drwxr-xr-x 10 root root 4096 Jul 29 17:16 var/
> root:/home/lfs# umount -v $LFS/dev
> udev has been unmounted
> root:/home/lfs#
>
OK. The intent is to:
----
* backup anything from under /mnt/lfs that you want to keep. Put any
backups well-out-of-the-way - e.g. put them in a subdir of ~root/ and
not under /mnt/lfs .
Personally, I'd just backup the lot:
$ mkdir ~/_mnt_lfs.bkup.201408031030.immedpre-wipe_mnt_lfs-restart_end_ch5
$
$ (cd /mnt/lfs && find -P . -xdev -depth -print0 | \
cpio -0pdam -v \
~/_mnt_lfs.bkup.201408031030.immedpre-wipe_mnt_lfs-restart_end_ch5 )
$
You can always, later, pick through the backup or just blitz in entirely,
at your leisure.
** "Backup now, or take your chances." **
* check/verify that the backup looks ok - e.g. 'du -skx ...',
'diff -qr ...', &c.
* then remove everything from under /mnt/lfs *EXCEPT FOR* both
/mnt/lfs/sources and /mnt/lfs/tools .
You might want to use (defensive) constructs such as:
$ (cd /mnt/lfs && \
rm --preserve-root --one-file-system -I -v -rf -- \
./opt ./media ./srv )
$
; or similarly:
$ (cd /mnt/lfs && find -P . -xdev -depth \
! \( -wholename './sources*' -o -wholename './tools*' \) \
-delete )
$
* double-check that you have got the backed-up toolchain from
end of chapter 5, and that you can temp-unpack it to a tempdir
(e.g. ~root/tmp/tmp-unpack-lfs-toolch-end_ch5/ ), and that it looks
OK. (You might even - e.g. just out of interest - want to do a quick
diff-qr between it and /mnt/lfs/tools/ ).
Check that the permissions on the backed-up toolchain look ok: they
should be 'root:root' per 'Changing Ownership' at end of ch.5 .
* if the (temp-unpack of the) ch5 backed-up toolchain dirtree looks ok
per preceding step, then remove /mnt/tmp/tools (or move it to e.g. under
~root if you've not got a backup of it per preceding notes), and put the
ch5 backed-up toolchain in its place. Be sure that you don't introduce
any extra dir levels: i.e. ensure you still have /mnt/lfs/tools/bin and
not /mnt/lfs/tools/tools/bin .
* goto last page, 'Changing Ownership', of ch.5: start at the top, read it,
and go from there.
Bear in mind the earlier injunctions about being careful, following the
book, &c &c.
----
rgds,
akh
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