Queries and Discussions. 05.Understanding-ARM-Board-Bringup

pravjot

Issues, queries, suggestions or discussion related to

05.Understanding-ARM-Board-Bringup

should be posted here.

sanjay.bhatt

I am getting this below error while build busybox

" CC      networking/tc.o
networking/tc.c: In function ‘cbq_print_opt’:
networking/tc.c:236:27: error: ‘TCA_CBQ_MAX’ undeclared (first use in this function); did you mean ‘TCA_CBS_MAX’?
236 |         struct rtattr *tb[TCA_CBQ_MAX+1];
      |                           ^~~~~~~~~~~
      |                           TCA_CBS_MAX
networking/tc.c:236:27: note: each undeclared identifier is reported only once for each function it appears in
networking/tc.c:249:16: error: ‘TCA_CBQ_RATE’ undeclared (first use in this function); did you mean ‘TCA_TBF_RATE64’?
249 |         if (tb[TCA_CBQ_RATE]) {
      |                ^~~~~~~~~~~~
      |                TCA_TBF_RATE64
networking/tc.c:255:16: error: ‘TCA_CBQ_LSSOPT’ undeclared (first use in this function)
255 |         if (tb[TCA_CBQ_LSSOPT]) {
      |                ^~~~~~~~~~~~~~
networking/tc.c:256:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_lssopt’
256 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT]) < sizeof(*lss))
      |                                                             ^
networking/tc.c:261:16: error: ‘TCA_CBQ_WRROPT’ undeclared (first use in this function)
261 |         if (tb[TCA_CBQ_WRROPT]) {
      |                ^~~~~~~~~~~~~~
networking/tc.c:262:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_wrropt’
262 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_WRROPT]) < sizeof(*wrr))
      |                                                             ^
networking/tc.c:267:16: error: ‘TCA_CBQ_FOPT’ undeclared (first use in this function)
267 |         if (tb[TCA_CBQ_FOPT]) {
      |                ^~~~~~~~~~~~
networking/tc.c:268:59: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_fopt’
268 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_FOPT]) < sizeof(*fopt))
      |                                                           ^
networking/tc.c:273:16: error: ‘TCA_CBQ_OVL_STRATEGY’ undeclared (first use in this function)
273 |         if (tb[TCA_CBQ_OVL_STRATEGY]) {
      |                ^~~~~~~~~~~~~~~~~~~~
networking/tc.c:274:67: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’
274 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY]) < sizeof(*ovl))
      |                                                                   ^
networking/tc.c:277:50: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’
277 |                                 (unsigned) sizeof(*ovl));
      |                                                  ^
"

i have solve this error by changing the .config file

"CONFIG_TC=y" to "# CONFIG_TC is not set "

and also in menu config GUI

go to networking Utilities

remove tc package

raj.kiran

Recovering GRUB and Repairing Your OS Using a Live USB Session

Hello everyone,

I recently faced an issue where I installed the latest kernel and needed to remove the newly installed kernel files from the boot directory. Unfortunately, I accidentally deleted the entire grub directory in the process. As a result, I couldn't boot my OS since GRUB was missing. Although reinstalling the OS is an option, I didn't want to lose my data. If you ever find yourself in a similar situation or need to repair your OS while preserving your data, here is a step-by-step guide to recover GRUB using a live USB session.

Steps to Recover GRUB Using a Live USB Session

Create a Live USB:

Download the ISO file of your Linux distribution.

Use a tool like Etcher (Windows) or dd (Linux) to flash above ISO file and create a bootable USB drive.

Boot from the Live USB:

Insert the Live USB into your computer and reboot.
Enter the BIOS/UEFI settings and change the boot order to boot from the USB drive.
Boot into the live session.

Open a Terminal:

Once you're in the live session, open a terminal.

Identify Your Root Partition:

Run the following command to list your disk partitions:
```
#sudo fdisk -l
```

Identify the root partition where your OS is installed (e.g., /dev/sda1)Mount the Root Partition:

Mount the root partition to /mnt:

#sudo mount /dev/sda1 /mnt
Mount Necessary Filesystems:

#sudo mount --bind /dev /mnt/dev

#sudo mount --bind /proc /mnt/proc

#sudo mount --bind /sys /mnt/sys

Change root into your installed system:

#sudo chroot /mnt

Reinstall GRUB/ Do necessary repairs:

#grub-install /dev/sda (replace /dev/sda with your disk if different)

Generate the GRUB configuration file:

#update-grub

<br>

Exit Chroot and Unmount Filesystems:

#exit

#sudo umount /mnt/dev

#sudo umount /mnt/proc

#sudo umount /mnt/sys

#sudo umount /mnt

Remove the Live USB and reboot your system:

#sudo reboot

<br>

System should now boot correctly with GRUB reinstalled. This method helps in repairing the OS without losing your data.

dshikha492

Hi All,

I am facing issue while kernel build.I compiled kernel 6.8.8 and it compiled and booted fine but on booting gives an out of memory error no key is working to continue. The detailed error log shows kernel panic. Please help me out in resolving this issue.

Queries and Discussions. 05.Understanding-ARM-Board-Bringup

Steps to Recover GRUB Using a Live USB Session

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