Re: [gentoo-user] Loading Issue
On Saturday, 7 March 2020 00:57:37 GMT Colleen Beamer wrote:
> On 2020-02-15 8:48 a.m., Alec Ten Harmsel wrote:
> > On Fri, Feb 14, 2020, at 15:03, Colleen Beamer wrote:
> >> Hi,
> >>
> >> There seems to be a problem with loading MySQL. During the boot process
> >> when it comes to the loading of MySQL it hangs. Is there a way to
> >> bypass the loading of MySQL so the computer will complete booting and I
> >> can make sure I've gotten everything that I want off of it before I wipe
> >> it?>
> > Probably the easiest way would be to download the gentoo boot CD or the
> > LiveCD of another Linux distro, boot the computer w/ the LiveCD, mount
> > the hard drive, and see if there's anything you need that way.
> >
> > Once you're booted from a LiveCD, you could also chroot into your Gentoo
> > install and prevent MySQL starting on boot with OpenRC/systemd if you
> > wanted to reboot from Gentoo and look at your files from Gentoo.
> >
> > Alec
>
> I've downloaded the Gentoo Live CD and managed to mount the hard drive
> on my computer. However, I can't figure out how to get any files that I
> want off the computer. I put a blank CD in the drive, but it won't let
> me write to it. I've also tried using a USB hard drive that I have, but
> it won't let me mount it. I've never actually used a Live CD for
> recovery purposes so, I'm at a bit of a loss here. The second
> suggestion would be okay, but I don't know how to do that.
>
> Colleen
You don't mention what commands you tried and what was the output.
In any case, to mount a USB drive which is probably more versatile than the
limited space of a CD:
1. Create a directory to mount your USB device under:
mkdir /mnt/myusb
2. Check dmesg to find out what the USB drive is recognised as, by the kernel.
dmesg | tail
3. Mount it (assuming it was recognised as '/dev/sdb1'):
mount /dev/sdb1 /mnt/myusb
4. Mount desired directories and copy stuff over, excluding any subdirectories
you're not interested in, e.g.:
mount /dev/sda3 /mnt/gentoo/home/colleen
rsync -av --progress --safe-links --exclude={".cache/*",".gvfs/*",".local/
share/gvfs-metadata/*","/lost+found"} /mnt/gentoo/home/colleen/ /mnt/myusb
Check you've copied over successfully what you wanted, then unmount the USB
and shutdown the PC (unless you want to wipe its hard drive first).
5. sync && umount /dev/sdb1
An alternative approach would be to set a root user passwd, start sshd, then
copy the files over the LAN to another PC using rsync, or scp.
If you get any problems please be more specific on what action you took and
what was the error printed out.
HTH.
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Re: [gentoo-user] Loading Issue
On 2020-02-15 8:48 a.m., Alec Ten Harmsel wrote: On Fri, Feb 14, 2020, at 15:03, Colleen Beamer wrote: Hi, There seems to be a problem with loading MySQL. During the boot process when it comes to the loading of MySQL it hangs. Is there a way to bypass the loading of MySQL so the computer will complete booting and I can make sure I've gotten everything that I want off of it before I wipe it? Probably the easiest way would be to download the gentoo boot CD or the LiveCD of another Linux distro, boot the computer w/ the LiveCD, mount the hard drive, and see if there's anything you need that way. Once you're booted from a LiveCD, you could also chroot into your Gentoo install and prevent MySQL starting on boot with OpenRC/systemd if you wanted to reboot from Gentoo and look at your files from Gentoo. Alec I've downloaded the Gentoo Live CD and managed to mount the hard drive on my computer. However, I can't figure out how to get any files that I want off the computer. I put a blank CD in the drive, but it won't let me write to it. I've also tried using a USB hard drive that I have, but it won't let me mount it. I've never actually used a Live CD for recovery purposes so, I'm at a bit of a loss here. The second suggestion would be okay, but I don't know how to do that. Colleen
Re: [gentoo-user] Loading Issue
On Saturday, 22 February 2020 18:14:04 GMT Jack wrote: > On 2020.02.22 04:14, Roger J. H. Welsh wrote: > [snip ] > > > On another note, I don't see the "keymaps" rc-service when I use > > rc-status. Is there any chance it is loaded before the other > > services? Or alternatively, is there any way to set it as the first > > service that starts? Does anyone listening know? > > It seems that by default, rc-status does not show boot or sysinit > runlevels. You can try "rc-status --all". For me, keymaps is in the > boot runlevel. There might also be services not explicitly in any > runlevel, but started because they are a required for some other > service. Or you can just 'ls -l /etc/runlevels/*/keymaps'. -- Regards, Peter.
Re: [gentoo-user] Loading Issue
On 2020.02.22 04:14, Roger J. H. Welsh wrote: [snip ] On another note, I don't see the "keymaps" rc-service when I use rc-status. Is there any chance it is loaded before the other services? Or alternatively, is there any way to set it as the first service that starts? Does anyone listening know? It seems that by default, rc-status does not show boot or sysinit runlevels. You can try "rc-status --all". For me, keymaps is in the boot runlevel. There might also be services not explicitly in any runlevel, but started because they are a required for some other service. Jack
Re: [gentoo-user] Loading Issue
MIME-Version: 1.0 Content-Type: text/plain; format=flowed Dr Rainer, Dr Rainer Woitok writes: > So instead of pressing the "1" key umpteen times (plus one time > too oft- > en, ARGH :-) it's probably really easier to boot from a live CD. I certainly agree with you on this, I was really just posing a quick fix for OP. I actually have a sysrescue disk in my boot partition, which I can choose from the GRUB menu when things break at home. > And the privileged shell offered here is also restricted in > that it is > only usable for the minority of 330 million people using a US > keyboard > layout, while the vast majority of 7.4 billion people NOT > using a US > keyboard layout will most probably not even manage to enter > their pass- > word :-( Personally, if I was debugging my openrc, I would probably try out rc_interactive for options 1, 2 and 3; if I was thinking of doing anything like 4, I would rather drop to a LiveCD. When things go bad, go with what you know works. ;) On another note, I don't see the "keymaps" rc-service when I use rc-status. Is there any chance it is loaded before the other services? Or alternatively, is there any way to set it as the first service that starts? Does anyone listening know? I'm just curious now. -- Regards, Roger Welsh
Re: [gentoo-user] Loading Issue
Roger, On Wednesday, 2020-02-19 09:51:20 +1300, you wrote: > ... > rc_interactive means I can press "I" or "i" during boot and > INTERRUPT > the boot process; *otherwise* it will boot as per normal. > > Is that not the behaviour you are seeking? Speaking not for the original poster but only for me: In a mathematical sense it surely is, because the interactive interface you are confronted with allows you not to start any services you're dis- liking. In a practical sense it surely requires more than patience, be- cause for each and every service available the user will be prompted to enter a number: 1. Start this sevice. 2. Skip this service. 3. Start all remaining services. 4. Start a privileged shell. So instead of pressing the "1" key umpteen times (plus one time too oft- en, ARGH :-) it's probably really easier to boot from a live CD. And the privileged shell offered here is also restricted in that it is only usable for the minority of 330 million people using a US keyboard layout, while the vast majority of 7.4 billion people NOT using a US keyboard layout will most probably not even manage to enter their pass- word :-( Sincerely, Rainer
Re: [gentoo-user] Loading Issue
On 2020.02.18 15:51, Roger J. H. Welsh wrote: Hi Jack, I just looked at the comments in my /etc/rc.conf. `less /etc/rc.conf` Jack writes: I'm not the OP, but I recently had a similar situation - total freeze early during the boot process. What I wanted was a way to get that rc_interactive="YES" behavior - but by doing something at boot time. rc_interactive means I can press "I" or "i" during boot and INTERRUPT the boot process; *otherwise* it will boot as per normal. Is that not the behaviour you are seeking? OR is that not the behaviour you get? I'm not sure if you got my point. Most of the time, I don't need that option. When I do need it, I discover that fact because the system won't boot into a usable state. I can boot into a live CD, edit rc.conf, then reboot again. My desire is to be able to get that interactive boot by doing something at boot time, so I don't have to reboot twice. However, on reading that explanation again, and more slowly, and more carefully, and actually absorbing it, I finally see that setting rc_interactive="YES" won't really have any effect on normal boot, but only if I press i or I at boot time - so I will have to try that. Thanks for poking me in the right direction. Also to note: rc_parallel="yes" may cause the boot process to lock up. (I wonder if that has been causing some of these boot freezes.) I hadn't considered that, and it might well be relevant, but in all my own cases, I was able to find a single service which was causing the problem. rc_interactive="yes" is DISABLED (automatically), if rc_parallel is set to "yes". -- Best of luck Roger Thanks, Jack
Re: [gentoo-user] Loading Issue
MIME-Version: 1.0 Content-Type: text/plain; format=flowed Hi Jack, I just looked at the comments in my /etc/rc.conf. `less /etc/rc.conf` Jack writes: > I'm not the OP, but I recently had a similar situation - total > freeze > early during the boot process. What I wanted was a way to get > that > rc_interactive="YES" behavior - but by doing something at boot > time. rc_interactive means I can press "I" or "i" during boot and INTERRUPT the boot process; *otherwise* it will boot as per normal. Is that not the behaviour you are seeking? OR is that not the behaviour you get? Also to note: rc_parallel="yes" may cause the boot process to lock up. (I wonder if that has been causing some of these boot freezes.) rc_interactive="yes" is DISABLED (automatically), if rc_parallel is set to "yes". -- Best of luck Roger
Re: [gentoo-user] Loading Issue
On 2020.02.15 14:16, Peter Humphrey wrote: On Friday, 14 February 2020 20:03:00 GMT Colleen Beamer wrote: I have an older computer with Gentoo on it. I haven't updated it in quite a while because it necessitates a full reinstall and up until recently, I haven't had the time to devote to this. It is mostly backuped up on an external hard drive so, it what I'm asking can't be done, that's okay. > There seems to be a problem with loading MySQL. During the boot process when it comes to the loading of MySQL it hangs. Is there a way to bypass the loading of MySQL so the computer will complete booting and I can make sure I've gotten everything that I want off of it before I wipe it? Have you tried setting rc_interactive="YES" in /etc/rc.conf? Then you can interrupt the boot process, and learn of several scripts that you didn't know were run. I'm assuming an openrc system, of course. I'm not the OP, but I recently had a similar situation - total freeze early during the boot process. What I wanted was a way to get that rc_interactive="YES" behavior - but by doing something at boot time. Otherwise, I needed to boot a live CD/DVD/thumb, edit rc.conf, and reboot. I was able to boot adding init=/bin/bash to the kernel command line, but then even though I could do "openrc sysinit" then "openrc boot" and then start "default" services individually, it took longer, since I had to try to figure out in what order services would have been started. I wonder if booting with init=/bin/bash, editing rc.conf, and then doing "exec /sbin/init" would then put the system in a state (with proc 1 being init) as if it had booted normally, but with an interactive startup? Jack
Re: [gentoo-user] Loading Issue
On Friday, 14 February 2020 20:03:00 GMT Colleen Beamer wrote: > I have an older computer with Gentoo on it. I haven't updated it in > quite a while because it necessitates a full reinstall and up until > recently, I haven't had the time to devote to this. It is mostly > backuped up on an external hard drive so, it what I'm asking can't be > done, that's okay. > > There seems to be a problem with loading MySQL. During the boot process > when it comes to the loading of MySQL it hangs. Is there a way to > bypass the loading of MySQL so the computer will complete booting and I > can make sure I've gotten everything that I want off of it before I wipe it? Have you tried setting rc_interactive="YES" in /etc/rc.conf? Then you can interrupt the boot process, and learn of several scripts that you didn't know were run. I'm assuming an openrc system, of course. -- Regards, Peter.
Re: [gentoo-user] Loading Issue
On Fri, Feb 14, 2020, at 15:03, Colleen Beamer wrote: > Hi, > > There seems to be a problem with loading MySQL. During the boot process > when it comes to the loading of MySQL it hangs. Is there a way to > bypass the loading of MySQL so the computer will complete booting and I > can make sure I've gotten everything that I want off of it before I wipe it? > Probably the easiest way would be to download the gentoo boot CD or the LiveCD of another Linux distro, boot the computer w/ the LiveCD, mount the hard drive, and see if there's anything you need that way. Once you're booted from a LiveCD, you could also chroot into your Gentoo install and prevent MySQL starting on boot with OpenRC/systemd if you wanted to reboot from Gentoo and look at your files from Gentoo. Alec
Re: [gentoo-user] Loading Issue
Hi Colleen, Which bootloader and init system do you use? If it is grub, you can try adding a ' 1' OR ' real_init=single' to the bootline. If LILO, you can try adding ' append="1" ' to the bootline. If you use OpenRC, you can try adding ' softlevel=boot' This should tell your system to boot in single-user mode and hopefully not start the mysql service. Otherwise, any compatible Linux LiveCD is your friend. Good luck -- Roger Welsh
[gentoo-user] Loading Issue
Hi, I have an older computer with Gentoo on it. I haven't updated it in quite a while because it necessitates a full reinstall and up until recently, I haven't had the time to devote to this. It is mostly backuped up on an external hard drive so, it what I'm asking can't be done, that's okay. There seems to be a problem with loading MySQL. During the boot process when it comes to the loading of MySQL it hangs. Is there a way to bypass the loading of MySQL so the computer will complete booting and I can make sure I've gotten everything that I want off of it before I wipe it? Thanks in advance, Colleen Beamer
