Re: [arch-general] Cannot chroot '/bin/bash': No such file or directory
On Thu, Mar 7, 2013 at 4:02 AM, Sean Greenslade zootboys...@gmail.comwrote: On Wed, Mar 6, 2013 at 8:32 PM, David C. Rankin drankina...@suddenlinkmail.com wrote: Guys, Attempting to fix the test box that updating left unable to boot, I cannot chroot to fix the system. I've booted from the install medium and done the normal mount of the existing system under /mnt: mount /dev/sda6 /mnt mount /dev/sda5 /mnt/home mount /dev/sda8 /mnt/boot mount -o bind /dev /mnt/dev mount -t proc none /mnt/proc mount -t sysfs none /mnt/sys All files appear in their proper place under /mnt. However, attempting to create the chroot fails: cd /mnt chroot /mnt /bin/bash chroot: failed to run command '/bin/bash': No such file or directory /bin/bash is in the new location /usr/bin/bash (moved from /bin/bash by the update) with with a proper symlink in /mnt/bin/bash pointing to ../usr/bin/bash This if the first time I've ever had difficulty chrooting a system. I suspect that this is caused by the last update that pulled in systemd which left the system unbootable. Anyone know what could be causing the chroot failure? I've tried explicitly pointing the chroot to ./usr/bin/bash, etc... and tried it without any executable specified. Regardless, I get the same No such file or directory. Thanks in advance for any help or link you can provide. -- David C. Rankin, J.D.,P.E. I had this issue once. It was on a system that had corruption on its root drive due to power failures. The error can be very misleading; in my case the file existed and yet the chroot still failed. I ended up wiping that system, but the most likely conclusion I could come to was that some very important system .so's got corrupted. If you have busybox installed, try chrooting into busybox's sh. If that works and the bash executable really does exist despite that error, I'm afraid you may have a quite the thrashed system on your hands. And if you don't have busybox installed, you can copy the `busybox` binary to, say, /mnt/tmp and then `chroot mnt /tmp/busybox`. Rodrigo.
Re: [arch-general] Cannot chroot '/bin/bash': No such file or directory
On 03/06/2013 08:24 PM, Ross Hamblin wrote: It's been a while now but ISTR this message when chroot from 32 bit host and 64 bit target, or maybe it was vice versa. HTH Ross. It does. It has to be something that simple. However, checking, I have booted with the i686 install medium. The box is an older dell P4, so the i686 is correct and matches the system installed. The install disk /bin/bash date is May 7, 2011. The /bin/bash on /dev/sda6 at /mnt/usr/bin/bash (after mount of the system / at /mnt) is January 26, 2013. Attempting the chroot again on fresh reboot gives the same failure: # cd /mnt # chroot /mnt chroot: failed to run command `/bin/bash`: No such file or directory For some reason it is like the system has no ability to find anything. The install cd is a pre /lib change cd, so that may be the issue. I have downloaded the latest install cd and will try again. Thank you again Ross. Any other suggestions welcomed. -- David C. Rankin, J.D.,P.E.
Re: [arch-general] Cannot chroot '/bin/bash': No such file or directory
On Thu, Mar 7, 2013 at 10:30 PM, David C. Rankin drankina...@suddenlinkmail.com wrote: On 03/06/2013 08:24 PM, Ross Hamblin wrote: # cd /mnt # chroot /mnt chroot: failed to run command `/bin/bash`: No such file or directory For some reason it is like the system has no ability to find anything. The install cd is a pre /lib change cd, so that may be the issue. I have downloaded the latest install cd and will try again. Thank you again Ross. Any other suggestions welcomed. Well, that error usually happens, at least to me, when the dynamic loader is unable to solve the shared dependencies of bash, hence the suggestion to use busybox: it is statically linked, so it doesn't suffer of that problem. In my machine the dynamic loader is `/usr/lib/ld-linux.so.2` but the reference to it is `/lib/ld-linux.so.2`. It works because of the `/lib` - `usr/lib` symbolic link. I'd bet that the cause of your problem is that this link is missing. If If the symbolic link in /lib is correct, it also may happen because the `/etc/ld.so.cache` file is corrupted. You can rebuild it using `chroot /mnt /usr/bin/ldconfig` or maybe `ldconfig -r /mnt` (untested). That can work because `ldconfig` is (obviously) a statically linked program. HTH Rodrigo
Re: [arch-general] Cannot chroot '/bin/bash': No such file or directory
On Wed, Mar 6, 2013 at 8:32 PM, David C. Rankin drankina...@suddenlinkmail.com wrote: Guys, Attempting to fix the test box that updating left unable to boot, I cannot chroot to fix the system. I've booted from the install medium and done the normal mount of the existing system under /mnt: mount /dev/sda6 /mnt mount /dev/sda5 /mnt/home mount /dev/sda8 /mnt/boot mount -o bind /dev /mnt/dev mount -t proc none /mnt/proc mount -t sysfs none /mnt/sys All files appear in their proper place under /mnt. However, attempting to create the chroot fails: cd /mnt chroot /mnt /bin/bash chroot: failed to run command '/bin/bash': No such file or directory /bin/bash is in the new location /usr/bin/bash (moved from /bin/bash by the update) with with a proper symlink in /mnt/bin/bash pointing to ../usr/bin/bash This if the first time I've ever had difficulty chrooting a system. I suspect that this is caused by the last update that pulled in systemd which left the system unbootable. Anyone know what could be causing the chroot failure? I've tried explicitly pointing the chroot to ./usr/bin/bash, etc... and tried it without any executable specified. Regardless, I get the same No such file or directory. Thanks in advance for any help or link you can provide. -- David C. Rankin, J.D.,P.E. I had this issue once. It was on a system that had corruption on its root drive due to power failures. The error can be very misleading; in my case the file existed and yet the chroot still failed. I ended up wiping that system, but the most likely conclusion I could come to was that some very important system .so's got corrupted. If you have busybox installed, try chrooting into busybox's sh. If that works and the bash executable really does exist despite that error, I'm afraid you may have a quite the thrashed system on your hands. -- --Zootboy Sent from some sort of computing device.
