Re: [DNG] grub-install device node not found [solved]
On Wed, Aug 04, 2021 at 05:27:48PM +0200, aitor wrote: > Hi, > > On 4/8/21 16:34, Haines Brown wrote: > > But I'd prefer to do the fix direclty within sdc chroot. Is there > > a utility in util-linux to make the node (/dev/sdc1 ?) visible? > > You need to include them in /etc/fstab to suit your needs, i guess. Thanks for the suggestion. In looking at fstab I found that term was no longer accessible. So I inistalled mlterm to look at /etc/fstab. I see that it still has the information I had earlier provided for it. That is, the UUID number for / etc. I worried about MBR. It is msdos as I would expect. Then I checked to see if it had content with # dd if=/dev/sdc of=mbr.bin bs=512 count=1 # od -xa mbr.bin The output of no use to me, but at least there exits an MBR with code. Otherwise I'd have to repartiion the disk In principle I have a fully operating system on the disk. There is a kernel and /boot/grub has its files. The only problem is I have no boot manager. Incidentally when I now try to run # update-grub it ends with device node not found Cannot find list of partitions! (Try mounting /sys.) So I tried to mount /sys within chroot: /# mount -t proc none /proc This did not oslve the problem. I tried from outide chroot: # mount -o bind /sys/ /mnt/devinst/sys Now # update-grub runs and successfully completes. It finds the linux and initrd images, but not those on other disks. I forget whether it can do so before a reboot. I used to do cross installs many years ago and loved it. The process today seems simpler than before. -- Haines Brown ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] grub-install device node not found
Hi Haines, On 4/8/21 12:31, Haines Brown wrote: Indeed, fdisk-l returns nothing. There does exist a set of sdc* interfaces in /dev. What is the fix? Take a chance with lsblk and blkid, miscelaneous utilities of util-linux. On the other hand # udevadm info -a -p $(udevadm info -q path -n /dev/sdc) # udevadm info -a -p $(udevadm info -q path -n /dev/sdcX) will list the attributes of sdc and sdcX. Aitor. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] grub-install device node not found
On Tue, Aug 03, 2021 at 10:31:28PM +0200, Arnt Karlsen wrote: > On Tue, 3 Aug 2021 13:25:19 -0400, Haines wrote in message > <20210803172519.gg29...@engels.histomat.net>: > > > I'm doing a cross install of beowulf. BIOS is legacy. All goes well > > until the end when I run /#: grub-install /dev/sdc . > > > > Installing for i386-pc platform. > > device node not found > > ... > > Installation finished. No error reported. > > > > I should mention that when I initially ran the command my terminal > > (mlterm) crashed (that sometimes happens). So I had to chroot again > > to the mount point /mnt/devinst/ > > > > It seems that the grub-install cannot see the mbr on /dev/sdc > > ..is there one? 'fdisk -l ' or somesuch should work, even if > there are some new fancy /dev names missing symlinks to /dev/sdc, > e.g. killed by that mlterm crash. Indeed, fdisk-l returns nothing. There does exist a set of sdc* interfaces in /dev. What is the fix? -- Haines Brown ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] grub-install device node not found
On Wed, 4 Aug 2021 00:59:30 +0200 aitor wrote: > Hi, > > On 4/8/21 0:18, aitor wrote: > > > > Hi Arnt, > > > > On 3/8/21 22:31, Arnt Karlsen wrote: > >> ..is there one? 'fdisk -l ' or somesuch should work, even if > >> there are some new fancy /dev names missing symlinks to /dev/sdc, > >> e.g. killed by that mlterm crash. > > > > The command for the interactive shell of debian-installer is > > "list-devices". Examples: > > > > ~ # list-devices usb-partition > > /dev/sda1 > > /dev/sda2 > > > > ~# list-devices disk > > /dev/sda > > /dev/sdb > > > > HTH, > > > > Aitor. > > > Forget this, it was a cross-install... > > Aitor. Yes, it's a matter of ensuring that the device node /dev/sdc is installed in the "chroot" filesystem; basically doing # mknod $target/dev/sdc b 8 32 (see eg linux/Documentation/admin-guide/devices.txt) If installing on a loopback filesystem you'd need to use the major:minor of the loopback device while naming it /dev/sdc during this installation. .. and don't forget to remove that dev/sdc afterwards Ralph. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] grub-install device node not found
Hi, On 4/8/21 0:18, aitor wrote: Hi Arnt, On 3/8/21 22:31, Arnt Karlsen wrote: ..is there one? 'fdisk -l ' or somesuch should work, even if there are some new fancy /dev names missing symlinks to /dev/sdc, e.g. killed by that mlterm crash. The command for the interactive shell of debian-installer is "list-devices". Examples: ~ # list-devices usb-partition /dev/sda1 /dev/sda2 ~# list-devices disk /dev/sda /dev/sdb HTH, Aitor. Forget this, it was a cross-install... Aitor. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] grub-install device node not found
On Tue, 3 Aug 2021 13:25:19 -0400, Haines wrote in message <20210803172519.gg29...@engels.histomat.net>: > I'm doing a cross install of beowulf. BIOS is legacy. All goes well > until the end when I run /#: grub-install /dev/sdc . > > Installing for i386-pc platform. > device node not found > ... > Installation finished. No error reported. > > I should mention that when I initially ran the command my terminal > (mlterm) crashed (that sometimes happens). So I had to chroot again > to the mount point /mnt/devinst/ > > It seems that the grub-install cannot see the mbr on /dev/sdc ..is there one? 'fdisk -l ' or somesuch should work, even if there are some new fancy /dev names missing symlinks to /dev/sdc, e.g. killed by that mlterm crash. -- ..med vennlig hilsen = with Kind Regards from Arnt Karlsen ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
[DNG] grub-install device node not found
I'm doing a cross install of beowulf. BIOS is legacy. All goes well until the end when I run /#: grub-install /dev/sdc . Installing for i386-pc platform. device node not found ... Installation finished. No error reported. I should mention that when I initially ran the command my terminal (mlterm) crashed (that sometimes happens). So I had to chroot again to the mount point /mnt/devinst/ It seems that the grub-install cannot see the mbr on /dev/sdc -- Haines Brown ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
