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标题: 自定义rootfs,挂载磁盘容量很小---求助！！！ [打印本页]

作者: 勇敢的小昭 时间: 2022-3-15 13:56
标题: 自定义rootfs,挂载磁盘容量很小---求助！！！
我使用busybox自定了一个rootfs文件系统，启动后，发现磁盘容量未能全部挂载，root目录可用空间约1个G。寻求办法挂载磁盘，多谢！！！

自定义的磁盘容量信息如下：
[0@CNEW]# df -h
Filesystem             Size    Used Available Use% Mounted on
/dev/root             999.7M 593.3M 338.0M  64% /
devtmpfs                1.9G    4.0K    1.9G 0% /dev
tmpfs                   1.9G       0    1.9G 0% /dev/shm

[0@CNEW]# fdisk -l
Disk /dev/mmcblk0: 29 GB, 31293702144 bytes, 61120512 sectors
3820032 cylinders, 1 heads, 16 sectors/track
Units: sectors of 1 * 512 = 512 bytes

Device    Boot StartCHS EndCHS       StartLBA    EndLBA Sectors  Size Id Type
/dev/mmcblk0p1 0,0,0    0,0,0             1 4294967295 4294967295 2047G ee EFI GPT

原debian10文件系统的磁盘信息如下：
toybrick@debian10:~$ df -h
Filesystem    Size  Used Avail Use% Mounted on
/dev/root       29G  3.1G 25G  12% /
devtmpfs       1.9G    0  1.9G 0% /dev
tmpfs          2.0G    0  2.0G 0% /dev/shm
tmpfs          2.0G 18M  1.9G 1% /run
tmpfs          5.0M  4.0K  5.0M 1% /run/lock
tmpfs          2.0G    0  2.0G 0% /sys/fs/cgroup
/dev/mmcblk0p3 95M 31M 60M  34% /boot
tmpfs          391M  4.0K  391M 1% /run/user/114
tmpfs          391M    0  391M 0% /run/user/1000

toybrick@debian10:~$ lsblk
NAME       MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
mmcblk0    179:0 0 29.1G  0 disk
├─mmcblk0p1  179:1 0 4M  0 part
├─mmcblk0p2  179:2 0 4M  0 part
├─mmcblk0p3  179:3 0 96M  0 part /boot
└─mmcblk0p4  179:4 0 29G  0 part /
mmcblk0boot0 179:32 0 4M  1 disk
mmcblk0boot1 179:64 0 4M  1 disk

toybrick@debian10:~$ sudo fdisk -l
[sudo] password for toybrick:
Disk /dev/ram0: 4 MiB, 4194304 bytes, 8192 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/mmcblk0: 29.1 GiB, 31293702144 bytes, 61120512 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
Disklabel type: gpt
Disk identifier: E7380000-0000-466C-8000-099D000008D5

Device       Start    End  Sectors Size Type
/dev/mmcblk0p1  16384 24575    8192 4M unknown
/dev/mmcblk0p2  24576 32767    8192 4M unknown
/dev/mmcblk0p3  32768 229375 196608  96M unknown
/dev/mmcblk0p4 229376 61120447 60891072  29G unknown

作者: jefferyzhang 时间: 2022-3-15 14:34
resize2fs 了解下

作者: 勇敢的小昭 时间: 2022-3-16 11:09

jefferyzhang 发表于 2022-3-15 14:34
resize2fs 了解下

在构建busybox的时候，没有这个工具选项，想要复制在buildroot中的这个工具到自己构建的rootfs中时，报了libc的版本不对，想要问问，怎么编译使busybox与resize2fs的依赖库一致，如下：
resize2fs: /lib/libc.so.6: version `GLIBC_2.28' not found (required by /lib/libext2fs.so.2)
resize2fs: /lib/libc.so.6: version `GLIBC_2.28' not found (required by /lib/libcom_err.so.2)
resize2fs: /lib/libc.so.6: version `GLIBC_2.25' not found (required by /lib/libblkid.so.1)
resize2fs: /lib/libc.so.6: version `GLIBC_2.28' not found (required by /lib/libblkid.so.1)
resize2fs: /lib/libc.so.6: version `GLIBC_2.25' not found (required by /lib/libuuid.so.1)
resize2fs: /lib/libc.so.6: version `GLIBC_2.28' not found (required by /lib/libuuid.so.1)

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