> From [email protected] Sun Aug 3 21:17:32 2014 > From: Michael Havens <[email protected]> > Date: Sun, 3 Aug 2014 13:18:31 -0700 > To: LFS Support List <[email protected]> > Subject: Re: [lfs-support] Please, teach me how to fix problems. > > > On Sun, Aug 3, 2014 at 4:37 AM, akhiezer <[email protected]> wrote: > > > > From: Michael Havens <[email protected]> > > > Date: Sun, 3 Aug 2014 03:32:31 -0700 > > > To: LFS Support List <[email protected]> > > > Subject: Re: [lfs-support] Please, teach me how to fix problems. > > > > > > > > > > > On Sun, Aug 3, 2014 at 2:32 AM, akhiezer <[email protected]> wrote: > > > > > > > >> > From [email protected] Sun Aug 3 > > > >> 10:17:39 2014 > > > >> > Date: Sun, 03 Aug 2014 10:17:16 +0100 > > > >> > From: [email protected] (akhiezer) > > > >> > To: LFS Support List <[email protected]> > > > >> > Subject: Re: [lfs-support] Please, teach me how to fix problems. > > > >> > > > > >> > > 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 ) > > > >> > $ > > > >> > > > >> > > > >> Obviously, in the above '... rm ... -rf ...' line, don't just restrict > > > >> that list of objects to './opt ./media ./srv' : add the others too - > > i.e. > > > >> the other items immediately under /mnt/lfs - ** EXCEPT FOR ** > > './sources' > > > >> and > > > >> './tools' . (The '... find ... -delete ...' approach below, is fine > > > >> as-is; > > > >> it doesn't need any such additions.) > > > >> > > > >> > > > >> And after the removal, verify that all you have got left under > > /mnt/lfs > > > >> are the ./sources and ./tools dirs. > > > >> > > > >> > > > >> > > > > >> > ; 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 > > > >> > > > > >> > > > > >> > > > > >> > > > > >> > > > > >> > -- > > > >> > -- > > > >> > http://lists.linuxfromscratch.org/listinfo/lfs-support > > > >> > FAQ: http://www.linuxfromscratch.org/blfs/faq.html > > > >> > Unsubscribe: See the above information page > > > >> > > > > >> > > > >> > > > >> -- > > > >> -- > > > >> http://lists.linuxfromscratch.org/listinfo/lfs-support > > > >> FAQ: http://www.linuxfromscratch.org/blfs/faq.html > > > >> Unsubscribe: See the above information page > > > >> > > > > > > On Sun, Aug 3, 2014 at 3:30 AM, Michael Havens <[email protected]> wrote: > > > > > > > SO, just to clarify, you want me to copy /tools and /sources to the > > root > > > > directory and then delete -rf /mnt/lfs then put /sources and /toold > > back > > > > where they were originally? What about what you said in the email > > before > > > > this about backing up everything and then running diff? > > > > > > > > :-)~MIKE~(-: > > > > > > > > sorry about the top post. I was just doing what gmail did. I need to > > go to > > > bed now..... gnight > > > > > > Perhaps re-read after a good night's sleep. > > > > > > Basically, you want to leave only /mnt/lfs/sources ; and then put the old > > backed-up toolchain - the one that you did at end of ch.5 - into place as > > /mnt/lfs/tools . > > > > > > Then goto start of last page of ch.5 and read and proceed from there. > > > > > > The extended details above were just to try to extra-avoid a fup for you: > > but yes, maybe there was too much detail and obscured the central point. > > > > > > I think at this stage, it's perhaps only yourself that's defeating > > yourself. > > > > > > okay: to preface this note I must apologize beforehand for the fact I get > easily confused. there is a reason for that which is that I had a traumatic > brain injury in 1985. > I typed in 'exit' until I got to the command prompt: > lfs@debian:~$ > the I su to root. Then I made the backups by > cp -rf sources/ tools/ lfs.backups/
(OK, not the way I'd do backups, but hey ... ). Presumably you're doing this in the $LFS dir, namely /mnt/lfs . If so, then you have created /mnt/lfs/lfs.backups/ . You want now to move the 'lfs.backups' dir outside of /mnt/lfs : move it to be under /home : so you should now have /home/lfs.backups/ . Don't worry about moving/removing anything else from under /mnt/lfs just yet: instead, see next question. ** Now, where is your backup of the toolchain that you did at end of chapter 5 ? ** (I know you wanted to push on with this on your Sunday. NB that it seems that you're ca 7-12 time-zones behind). > Now I: > chroot "$LFS" /tools/bin/env -i HOME=/root > and then I was going to "rm -rf" each individual directory but to make sure > things were right: > root@debian:/# ls > bin etc lfs.backups lost+found opt run sources > temptools usr > boot home lib media proc sbin srv > tmp var > dev initrd.img lib64 mnt root selinux sys > tools vmlinuz > root@debian:/# exit > exit > lfs@debian:/$ su > Password: > root@debian:/# ls > bin etc lfs.backups lost+found opt run sources > temptools usr > boot home lib media proc sbin srv > tmp var > dev initrd.img lib64 mnt root selinux sys > tools vmlinuz > The two directories are the same? To make sure they weren't I ls /home: > root@debian:/# ls home/ > lfs mike > root@debian:/# chroot "$LFS" /tools/bin/env -i HOME=/root > HOME=/root > root@debian:/# ls home/ > lfs mike > So both directories are the same So what to do now? > The above excerpt is completely irrelevant here. You (basically) don't need/want to be using 'chroot' here. rgds, akh -- -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
