Bug#966575: Security update can break grub - grub_calloc not found
On Fri, Jul 31, 2020 at 03:07:58PM +0100, Geoff Gibbs wrote: >On Fri, 31 Jul 2020 14:30:14 +0100 >Steve McIntyre wrote: > >> I'm guessing - do you have multiple disks on your system? If so, try >> "grub-install " on each of the bootable disks and that should >> fix your problem. > >As I mentioned, > >mount /dev/sda5 /mnt >grub-install --boot-directory=/mnt /dev/sda > >has fixed the problem for me. Yup. Sorry - I saw that. Trying to respond to lots of people atm... >fdisk -l reports :- > >Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 sectors >Disk model: Corsair Force GS >Units: sectors of 1 * 512 = 512 bytes >Sector size (logical/physical): 512 bytes / 512 bytes >I/O size (minimum/optimal): 512 bytes / 512 bytes >Disklabel type: dos >Disk identifier: 0xc1920bad > >Device Boot Start End Sectors Size Id Type >/dev/sda1 * 2048206847204800 100M 7 HPFS/NTFS/exFAT >/dev/sda2 210942 468860927 468649986 223.5G 5 Extended >/dev/sda5 210944722943512000 250M 83 Linux >/dev/sda6 724992 468860927 468135936 223.2G 8e Linux LVM > > >Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors >Disk model: WDC WD10EZRX-00A >Units: sectors of 1 * 512 = 512 bytes >Sector size (logical/physical): 512 bytes / 4096 bytes >I/O size (minimum/optimal): 4096 bytes / 4096 bytes >Disklabel type: dos >Disk identifier: 0xc1920ba9 > >Device Boot StartEndSectors Size Id Type >/dev/sdb1 * 2048 209717247 209715200 100G 7 HPFS/NTFS/exFAT >/dev/sdb2 209721342 1953523711 1743802370 831.5G 5 Extended >/dev/sdb5 209721344 230201343 2048 9.8G 82 Linux swap / Solaris >/dev/sdb6 230203392 1953523711 1723320320 821.8G 8e Linux LVM > >Partition 2 does not start on physical sector boundary. > >And then there is a list of partitions handled by LVM (many for Xen) >but including :- > >Disk /dev/mapper/SSD0-root: 20 GiB, 21474836480 bytes, 41943040 sectors >Units: sectors of 1 * 512 = 512 bytes >Sector size (logical/physical): 512 bytes / 512 bytes >I/O size (minimum/optimal): 512 bytes / 512 bytes > >Disk /dev/mapper/HDD0-var: 9.3 GiB, 220736 bytes, 19529728 sectors >Units: sectors of 1 * 512 = 512 bytes >Sector size (logical/physical): 512 bytes / 4096 bytes >I/O size (minimum/optimal): 4096 bytes / 4096 bytes > >Disk /dev/mapper/SSD0-home: 38.6 GiB, 41473277952 bytes, 81002496 sectors >Units: sectors of 1 * 512 = 512 bytes >Sector size (logical/physical): 512 bytes / 512 bytes >I/O size (minimum/optimal): 512 bytes / 512 bytes ACK. I tend to do "fdisk -l /dev/sd?" to avoid that behaviour on my md/lvm machine here. :-) -- Steve McIntyre, Cambridge, UK.st...@einval.com You raise the blade, you make the change... You re-arrange me 'til I'm sane...
Bug#966575: Security update can break grub - grub_calloc not found
On Fri, 31 Jul 2020 14:30:14 +0100 Steve McIntyre wrote: > I'm guessing - do you have multiple disks on your system? If so, try > "grub-install " on each of the bootable disks and that should > fix your problem. As I mentioned, mount /dev/sda5 /mnt grub-install --boot-directory=/mnt /dev/sda has fixed the problem for me. fdisk -l reports :- Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 sectors Disk model: Corsair Force GS Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xc1920bad Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048206847204800 100M 7 HPFS/NTFS/exFAT /dev/sda2 210942 468860927 468649986 223.5G 5 Extended /dev/sda5 210944722943512000 250M 83 Linux /dev/sda6 724992 468860927 468135936 223.2G 8e Linux LVM Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Disk model: WDC WD10EZRX-00A Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0xc1920ba9 Device Boot StartEndSectors Size Id Type /dev/sdb1 * 2048 209717247 209715200 100G 7 HPFS/NTFS/exFAT /dev/sdb2 209721342 1953523711 1743802370 831.5G 5 Extended /dev/sdb5 209721344 230201343 2048 9.8G 82 Linux swap / Solaris /dev/sdb6 230203392 1953523711 1723320320 821.8G 8e Linux LVM Partition 2 does not start on physical sector boundary. And then there is a list of partitions handled by LVM (many for Xen) but including :- Disk /dev/mapper/SSD0-root: 20 GiB, 21474836480 bytes, 41943040 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/HDD0-var: 9.3 GiB, 220736 bytes, 19529728 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/mapper/SSD0-home: 38.6 GiB, 41473277952 bytes, 81002496 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Geoff
Bug#966575: Security update can break grub - grub_calloc not found
Hi Geoff, On Fri, Jul 31, 2020 at 11:54:20AM +0100, Geoff Gibbs wrote: >apt update >apt full-upgrade > >grub upgrades > >from 2.02+dfsg1-20 >to 2.02+dfsg1-20+deb10u1 > >no errors were spotted. > >When rebooted :- > >symbol grub_calloc not found >Entering rescue mode >grub rescue> > > >I had to boot off a memory stick and then :- > >sudo -i >mount /dev/sda5 /mnt >grub-install --boot-directory=/mnt /dev/sda >reboot > >This worked and the system now boots. > >/boot is the only ext type file system, the others are all handled by LVM I'm guessing - do you have multiple disks on your system? If so, try "grub-install " on each of the bootable disks and that should fix your problem. I think we need a proper fix for this in the longer term, but that's not going to happen overnight. -- Steve McIntyre, Cambridge, UK.st...@einval.com You lock the door And throw away the key There's someone in my head but it's not me
Bug#966575: Security update can break grub - grub_calloc not found
Sorry, I forgot to mention that this occurs with the stable security updates. Geoff
Bug#966575: Security update can break grub - grub_calloc not found
apt update apt full-upgrade grub upgrades from 2.02+dfsg1-20 to 2.02+dfsg1-20+deb10u1 no errors were spotted. When rebooted :- symbol grub_calloc not found Entering rescue mode grub rescue> I had to boot off a memory stick and then :- sudo -i mount /dev/sda5 /mnt grub-install --boot-directory=/mnt /dev/sda reboot This worked and the system now boots. /boot is the only ext type file system, the others are all handled by LVM Geoff
